44caliber | eaf369efb906f72afea8f894b6867ef70bc87acafcc04f28c6fedb2bf512c0ba

Analysis

max time kernel
136s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-05-2024 15:35

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General

Target

installer.exe
Size

12.6MB
MD5

1d7779cf1eb8b628fb7b51632ff0b1ef
SHA1

8517b912bf43920019974502e845c46008153c81
SHA256

eaf369efb906f72afea8f894b6867ef70bc87acafcc04f28c6fedb2bf512c0ba
SHA512

d27224331c80334a35d4b6089db009a03edb7d80cca12c2483517617d4cbea618fc10a6599ca869de6a2a52022d71f9c07ea8fa328fb341f01506133bb71c42b
SSDEEP

98304:qN8TuGLcT86GaEk4xK+NAwmRtaudDN8TuGLcT86GaEk4xK+NAwmRtaud0bJzREdj:V4crE5Gud24crE5Gud0lkoxw

Score

10^/10

44caliber dcrat xworm execution infostealer persistence rat spyware stealer trojan

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1239246319751528579/IYIQqMQxDmDpiYnpeLyqY8m4ky9T5uSTQX5CVjPoiRejTrVzBHNdk_JlDhnNu15EaRmp

Extracted

Family

xworm

lesbian-organ.gl.at.ply.gg:38343

Attributes

Install_directory
%LocalAppData%
install_file
javaw.exe Java(TM) Platform SE binary.exe
telegram
https://api.telegram.org/bot7026469441:AAEt3_GfOceSfMaQnCWR3hwEjHcRpqL852Q/sendMessage?chat_id=1434801883

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
rat infostealer dcrat

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x000e000000014e3d-34.dat	family_xworm
behavioral1/memory/2804-49-0x0000000000090000-0x00000000000A6000-memory.dmp	family_xworm

Modifies WinLogon for persistence 2 TTPs 7 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\", \"C:\\bridgeHyperCrt\\System.exe\", \"C:\\bridgeHyperCrt\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\", \"C:\\bridgeHyperCrt\\System.exe\", \"C:\\bridgeHyperCrt\\winlogon.exe\", \"C:\\Windows\\security\\database\\Realtek HD Audio Universal Service.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\", \"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\", \"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\", \"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\", \"C:\\bridgeHyperCrt\\System.exe\""	Realtek HD Audio Universal Service.exe

Process spawned unexpected child process 21 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1884	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2668	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2008	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1620	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1036	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2376	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2312	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2296	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2168	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2188	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1928	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2092	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2884	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	432	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1140	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1516	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1312	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1360	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1276	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1880	2648	schtasks.exe	38
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2408	2648	schtasks.exe	38

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

DCRat payload 7 IoCs

Detects payload of DCRat, commonly dropped by NSIS installers.

rat

resource	yara_rule
behavioral1/files/0x0009000000014909-5.dat	dcrat
behavioral1/memory/1760-6-0x0000000000400000-0x00000000010AD000-memory.dmp	dcrat
behavioral1/files/0x002c000000014c67-21.dat	dcrat
behavioral1/memory/2116-47-0x0000000000400000-0x0000000000BC8000-memory.dmp	dcrat
behavioral1/files/0x000900000001560a-69.dat	dcrat
behavioral1/memory/2460-73-0x0000000000FA0000-0x00000000011E4000-memory.dmp	dcrat
behavioral1/memory/2580-114-0x0000000000F80000-0x00000000011C4000-memory.dmp	dcrat

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2252	powershell.exe
1740	powershell.exe
2604	powershell.exe
2476	powershell.exe

Executes dropped EXE 7 IoCs

pid	Process
2116	installer1.exe
2544	installer.exe
3060	Realtek HD Audio Universal Service.exe
2804	javaw.exe Java(TM) Platform SE binary.exe
2592	Updata.exe
2460	Realtek HD Audio Universal Service.exe
2580	taskhost.exe

Loads dropped DLL 13 IoCs

pid	Process
1760	installer.exe
2116	installer1.exe
2116	installer1.exe
2116	installer1.exe
2116	installer1.exe
2116	installer1.exe
2116	installer1.exe
3060	Realtek HD Audio Universal Service.exe
3060	Realtek HD Audio Universal Service.exe
2116	installer1.exe
2116	installer1.exe
2816	cmd.exe
2816	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 15 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "\"C:\\Windows\\security\\database\\Realtek HD Audio Universal Service.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "\"C:\\Windows\\security\\database\\Realtek HD Audio Universal Service.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\javaw.exe Java(TM) Platform SE binary = "C:\\Users\\Admin\\AppData\\Local\\javaw.exe Java(TM) Platform SE binary.exe"	javaw.exe Java(TM) Platform SE binary.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\bridgeHyperCrt\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\Recovery\\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\\System.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\Program Files (x86)\\Windows Sidebar\\de-DE\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "\"C:\\bridgeHyperCrt\\winlogon.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskhost = "\"C:\\Program Files (x86)\\Microsoft Synchronization Services\\taskhost.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files (x86)\\Windows Portable Devices\\csrss.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\bridgeHyperCrt\\System.exe\""	Realtek HD Audio Universal Service.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "\"C:\\bridgeHyperCrt\\System.exe\""	Realtek HD Audio Universal Service.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
5	ip-api.com

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Windows Portable Devices\886983d96e3d3e	Realtek HD Audio Universal Service.exe
File created	C:\Program Files (x86)\Windows Sidebar\de-DE\winlogon.exe	Realtek HD Audio Universal Service.exe
File created	C:\Program Files (x86)\Windows Sidebar\de-DE\cc11b995f2a76d	Realtek HD Audio Universal Service.exe
File created	C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe	Realtek HD Audio Universal Service.exe
File created	C:\Program Files (x86)\Microsoft Synchronization Services\b75386f1303e64	Realtek HD Audio Universal Service.exe
File created	C:\Program Files (x86)\Windows Portable Devices\csrss.exe	Realtek HD Audio Universal Service.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\security\database\Realtek HD Audio Universal Service.exe	Realtek HD Audio Universal Service.exe
File created	C:\Windows\security\database\1a118449e3bb0d	Realtek HD Audio Universal Service.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 21 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
1140	schtasks.exe
1884	schtasks.exe
2008	schtasks.exe
2168	schtasks.exe
2188	schtasks.exe
1276	schtasks.exe
2312	schtasks.exe
2884	schtasks.exe
1516	schtasks.exe
1360	schtasks.exe
1036	schtasks.exe
2376	schtasks.exe
1928	schtasks.exe
1312	schtasks.exe
432	schtasks.exe
1880	schtasks.exe
2408	schtasks.exe
2668	schtasks.exe
1620	schtasks.exe
2296	schtasks.exe
2092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2592	Updata.exe
2592	Updata.exe
2592	Updata.exe
2460	Realtek HD Audio Universal Service.exe
2460	Realtek HD Audio Universal Service.exe
2460	Realtek HD Audio Universal Service.exe
2252	powershell.exe
1740	powershell.exe
2604	powershell.exe
2580	taskhost.exe
2476	powershell.exe
2804	javaw.exe Java(TM) Platform SE binary.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe
2580	taskhost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	taskhost.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	javaw.exe Java(TM) Platform SE binary.exe
Token: SeDebugPrivilege	2592	Updata.exe
Token: SeDebugPrivilege	2460	Realtek HD Audio Universal Service.exe
Token: SeDebugPrivilege	2252	powershell.exe
Token: SeDebugPrivilege	1740	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2580	taskhost.exe
Token: SeDebugPrivilege	2476	powershell.exe
Token: SeDebugPrivilege	2804	javaw.exe Java(TM) Platform SE binary.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	javaw.exe Java(TM) Platform SE binary.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 1760 wrote to memory of 2116	1760	installer.exe	28
PID 2116 wrote to memory of 2544	2116	installer1.exe	29
PID 2116 wrote to memory of 2544	2116	installer1.exe	29
PID 2116 wrote to memory of 2544	2116	installer1.exe	29
PID 2116 wrote to memory of 2544	2116	installer1.exe	29
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 3060	2116	installer1.exe	30
PID 2116 wrote to memory of 2804	2116	installer1.exe	31
PID 2116 wrote to memory of 2804	2116	installer1.exe	31
PID 2116 wrote to memory of 2804	2116	installer1.exe	31
PID 2116 wrote to memory of 2804	2116	installer1.exe	31
PID 2116 wrote to memory of 2592	2116	installer1.exe	32
PID 2116 wrote to memory of 2592	2116	installer1.exe	32
PID 2116 wrote to memory of 2592	2116	installer1.exe	32
PID 2116 wrote to memory of 2592	2116	installer1.exe	32
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 3060 wrote to memory of 2492	3060	Realtek HD Audio Universal Service.exe	33
PID 2592 wrote to memory of 1872	2592	Updata.exe	34
PID 2592 wrote to memory of 1872	2592	Updata.exe	34
PID 2592 wrote to memory of 1872	2592	Updata.exe	34
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2492 wrote to memory of 2816	2492	WScript.exe	35
PID 2816 wrote to memory of 2460	2816	cmd.exe	37
PID 2816 wrote to memory of 2460	2816	cmd.exe	37
PID 2816 wrote to memory of 2460	2816	cmd.exe	37
PID 2816 wrote to memory of 2460	2816	cmd.exe	37
PID 2460 wrote to memory of 2208	2460	Realtek HD Audio Universal Service.exe	60
PID 2460 wrote to memory of 2208	2460	Realtek HD Audio Universal Service.exe	60
PID 2460 wrote to memory of 2208	2460	Realtek HD Audio Universal Service.exe	60
PID 2208 wrote to memory of 2344	2208	cmd.exe	62
PID 2208 wrote to memory of 2344	2208	cmd.exe	62
PID 2208 wrote to memory of 2344	2208	cmd.exe	62
PID 2804 wrote to memory of 2252	2804	javaw.exe Java(TM) Platform SE binary.exe	63
PID 2804 wrote to memory of 2252	2804	javaw.exe Java(TM) Platform SE binary.exe	63
PID 2804 wrote to memory of 2252	2804	javaw.exe Java(TM) Platform SE binary.exe	63
PID 2804 wrote to memory of 1740	2804	javaw.exe Java(TM) Platform SE binary.exe	65
PID 2804 wrote to memory of 1740	2804	javaw.exe Java(TM) Platform SE binary.exe	65
PID 2804 wrote to memory of 1740	2804	javaw.exe Java(TM) Platform SE binary.exe	65
PID 2804 wrote to memory of 2604	2804	javaw.exe Java(TM) Platform SE binary.exe	67
PID 2804 wrote to memory of 2604	2804	javaw.exe Java(TM) Platform SE binary.exe	67
PID 2804 wrote to memory of 2604	2804	javaw.exe Java(TM) Platform SE binary.exe	67
PID 2208 wrote to memory of 2580	2208	cmd.exe	69
PID 2208 wrote to memory of 2580	2208	cmd.exe	69

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\installer.exe
"C:\Users\Admin\AppData\Local\Temp\installer.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\installer1.exe
  "C:\Users\Admin\AppData\Local\Temp\installer1.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Users\Admin\AppData\Local\Temp\installer.exe
    "C:\Users\Admin\AppData\Local\Temp\installer.exe"
    3⤵
    - Executes dropped EXE
    PID:2544
- - C:\Users\Admin\AppData\Local\Temp\Realtek HD Audio Universal Service.exe
    "C:\Users\Admin\AppData\Local\Temp\Realtek HD Audio Universal Service.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:3060
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\bridgeHyperCrt\FOAEdrh1BxsF.vbe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2492
    - - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\bridgeHyperCrt\OI0pwrYEs8WKMbQhaocS5DTAkNJim.bat" "
        5⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2816
      - C:\bridgeHyperCrt\Realtek HD Audio Universal Service.exe
        
        "C:\bridgeHyperCrt\Realtek HD Audio Universal Service.exe"
        6⤵
        Modifies WinLogon for persistence
        Executes dropped EXE
        Adds Run key to start application
        Drops file in Program Files directory
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:2460
        
        C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\E492RUQRNo.bat"
        7⤵
        Suspicious use of WriteProcessMemory
        
        PID:2208
        
        C:\Windows\system32\w32tm.exe
        
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        8⤵
        
        PID:2344
        
        C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe
        
        "C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe"
        8⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        
        PID:2580
- - C:\Users\Admin\AppData\Local\Temp\javaw.exe Java(TM) Platform SE binary.exe
    "C:\Users\Admin\AppData\Local\Temp\javaw.exe Java(TM) Platform SE binary.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2804
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\javaw.exe Java(TM) Platform SE binary.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2252
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'javaw.exe Java(TM) Platform SE binary.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1740
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\javaw.exe Java(TM) Platform SE binary.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2604
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'javaw.exe Java(TM) Platform SE binary.exe'
      4⤵
      Command and Scripting Interpreter: PowerShell
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2476
- - C:\Users\Admin\AppData\Local\Temp\Updata.exe
    "C:\Users\Admin\AppData\Local\Temp\Updata.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2592
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2592 -s 1200
      4⤵
      PID:1872

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 6 /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1884

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2008

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Recovery\8f9e55a2-d10b-11ee-8d36-fdfbfcab7b96\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2668

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1620

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1036

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft Synchronization Services\taskhost.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2376

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2312

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2296

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Portable Devices\csrss.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2168

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Sidebar\de-DE\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2188

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\de-DE\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1928

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Sidebar\de-DE\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2092

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 7 /tr "'C:\bridgeHyperCrt\System.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:432

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\bridgeHyperCrt\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2884

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 11 /tr "'C:\bridgeHyperCrt\System.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1140

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 8 /tr "'C:\bridgeHyperCrt\winlogon.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1312

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\bridgeHyperCrt\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1516

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\bridgeHyperCrt\winlogon.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1360

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Realtek HD Audio Universal ServiceR" /sc MINUTE /mo 12 /tr "'C:\Windows\security\database\Realtek HD Audio Universal Service.exe'" /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1880

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Realtek HD Audio Universal Service" /sc ONLOGON /tr "'C:\Windows\security\database\Realtek HD Audio Universal Service.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:1276

C:\Windows\system32\schtasks.exe
schtasks.exe /create /tn "Realtek HD Audio Universal ServiceR" /sc MINUTE /mo 10 /tr "'C:\Windows\security\database\Realtek HD Audio Universal Service.exe'" /rl HIGHEST /f
1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\E492RUQRNo.bat

Filesize
235B

MD5
19b19c433a0f5b9124da68b23c5fef8f

SHA1
062e727a45f7012f979a9d7b64b63843129a8108

SHA256
69255995558faecffe9a0ec28c1086fc827fe97229a56caa883e379db63a3bdc

SHA512
f50c219d2b73cd1e1a9ff9ef8b5890bd571cad43646613c257b513a483f44e62e8a21ecddf20d0be04b4eb3c5b6f152e2ace7e4aa0735bcda9c751d4951b9713

Download Submit
C:\Users\Admin\AppData\Local\Temp\Updata.exe

Filesize
303KB

MD5
fa8baa8b5f5e19777e1b20104defff51

SHA1
a17922c107c303693489530dbfa3bb20afc24e59

SHA256
42538f0378843cc317f37ff9731b8c917f6763d811c0fde29bac25b759402f47

SHA512
4e2478795dacfe440860f03c8b0e318f238b2d2e09e278c995b49a90415ff275c87645f3d22cbff6102e5db683d4d98f0ef13abb6002eb19c647f86ec8d69d62

Download Submit
C:\Users\Admin\AppData\Local\Temp\installer1.exe

Filesize
7.8MB

MD5
f3d4a56f1ec903519f4c37129423bd73

SHA1
72f0835888eea6e63e142d208b3997a708d7331b

SHA256
eb346407fcdb18f374cd2c9e309f8d8e986e8679d370c1f530723d0a0c8c3579

SHA512
1847df8f65d254a270722bf968b5e14230c3b9cb13b8bd0886aadb7c1da11d8ad43f56483be634b5010919843bbf4997cf5ada31a6a3e81671e173b0994630ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\javaw.exe Java(TM) Platform SE binary.exe

Filesize
66KB

MD5
52409e4dbf9ed75c7fd6fbb4e7b1593c

SHA1
b2124798396292059c64fcb5e3d40a742ea66f0b

SHA256
8c63a9bbb49745a61fbf450e78485966222810403844af067f43046092b02112

SHA512
b72e769ced2813f5c93731e9c96bdafeb7359c9aa2b23fe9cb8bea675e1c2fcb2a7208b21bf0fc73d8255ee73bb732aea58ff7ff3a14c7727425947fa3f5c1a7

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f5496dc1b6b86ca98bd16d5ee62d83a7

SHA1
8e57b5e2ff1cf439447a24e1bda90713bd65def7

SHA256
21c774b9072f3984981dceb3b0ab82d823c8aa1ae2df110c6e7bb854be9a55a9

SHA512
6558ac3acaa3bf7c816512af88203e01237e72c3b617bd09007662330bdbd2d4301484764bd2d76a594be3b8a833447e1b28082fb6ada60e2708f1a86bfffd6b

Download Submit
C:\bridgeHyperCrt\FOAEdrh1BxsF.vbe

Filesize
231B

MD5
91dfc7252bcd06d82af9f64190b08c7e

SHA1
4eea175d57c3631c0dab65cff1c325d59b5d34a8

SHA256
fdee20a4260f6ba25d38608473eb51910fd1780e104edc51b7feea672f23858b

SHA512
b56eea94d6f4660f1022464c82d0595c8ddf18fdd5977c6bc9dd7baae2c8090d188b418c1b6d2556e3b630823d526b27640d06fe8a5f6fffc776caa4907b2d30

Download Submit
C:\bridgeHyperCrt\OI0pwrYEs8WKMbQhaocS5DTAkNJim.bat

Filesize
69B

MD5
ae3ca8c85d0b24e4a5d8665f7cb83466

SHA1
cea7807241d92dca00ed5d9283e21142ffbbb14c

SHA256
afddd637f38e2c904b3c6c717d6277fe9f9566e29f2940e371289ab259f4e869

SHA512
e3379655f409bd348fbcf61be7cba93627b0a3fb30cadc47f036e3fe03a69d2e9631d7339984ae426cbd5145db1c22a9aec5c98f5806ef0caf1bf69a412c1c99

Download Submit
\Users\Admin\AppData\Local\Temp\Realtek HD Audio Universal Service.exe

Filesize
2.5MB

MD5
3389fc2b0cbe478b8ff249b7fedc75ed

SHA1
949a474ba3ad5913504b999516e0e7aac6d1854c

SHA256
7e4efd43ace17028eacb97352fe2ea46d44b96aca3068130b0cdec4dbba081b1

SHA512
707f7bcf0d86212654d1f69f2dd8e753dc8a67a1bc9d5a5132e60c852ba6d4b30063656e0e6f87104ec7825404add94e8bfff5ec1757df7add4c1b604cd30313

Download Submit
\Users\Admin\AppData\Local\Temp\installer.exe

Filesize
4.8MB

MD5
b1db658dd5b429579cf17cc7ab8ea4af

SHA1
d2481aba804344f7bc1d4b9658d2bcdb9e4bfc98

SHA256
4e73dc6b00a711dd4ed062cf8c58168c14d8c1d1261327d9ff22f212cf09db62

SHA512
58f2ab4ce87e179ea651d5c4df39978ff739236d3899481fc132695b61b7e70e2baafdc4e7528891430cacff2eff3740ed71691e48e2a1e0d6ad0a817b893ce6

Download Submit
\bridgeHyperCrt\Realtek HD Audio Universal Service.exe

Filesize
2.2MB

MD5
8b8ad5d190af5992165ab74f2c4d2539

SHA1
4c7dcd839b39b6da31c575e6c0078b948c486ca0

SHA256
fa7c73b719b35f3ed6e23c1c1f216f9c344a3a95a46d9779ddb90cacbde81624

SHA512
eb957611286cc642dac606a2cd65ae49a67c15832f5383983dc65075d48ab7c4c74873a30cbf9ff024b29d0282b2e1e6e731365a78f23c912fbd5a799568aa0c

Download Submit
memory/1740-104-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/1740-105-0x0000000001F50000-0x0000000001F58000-memory.dmp

Filesize
32KB

Download
memory/1760-6-0x0000000000400000-0x00000000010AD000-memory.dmp

Filesize
12.7MB

Download
memory/2116-47-0x0000000000400000-0x0000000000BC8000-memory.dmp

Filesize
7.8MB

Download
memory/2252-97-0x000000001B4A0000-0x000000001B782000-memory.dmp

Filesize
2.9MB

Download
memory/2252-98-0x0000000001EE0000-0x0000000001EE8000-memory.dmp

Filesize
32KB

Download
memory/2460-73-0x0000000000FA0000-0x00000000011E4000-memory.dmp

Filesize
2.3MB

Download
memory/2580-114-0x0000000000F80000-0x00000000011C4000-memory.dmp

Filesize
2.3MB

Download
memory/2592-50-0x00000000001E0000-0x0000000000232000-memory.dmp

Filesize
328KB

Download
memory/2804-49-0x0000000000090000-0x00000000000A6000-memory.dmp

Filesize
88KB

Download