djvu | a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66

Analysis

max time kernel
115s
max time network
137s
platform
windows10_x64
resource
win10-en-20210920
submitted
19-10-2021 07:51

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General

Target

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
Size

808KB
MD5

3a21f98382d8c62bbc0db98b5ef52a61
SHA1

7cc592b0d0e7a739ecd56df4244f77326d829b43
SHA256

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66
SHA512

adbe1fae74ad00f2ffdb713920d5b83a18c94a50036d712343889974f0b98eeb29c8d9afacb59ac01762facc9721336f2ae705d80b214b84512a8f0207a7ab37

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer

Malware Config

Extracted

Family

vidar

Version

41.3

Botnet

517

https://mas.to/@oleg98

Attributes

profile_id
517

Extracted

Family

djvu

http://rlrz.org/fhsgtsspen6

Signatures

Detected Djvu ransomware 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/512-117-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/512-116-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2416-118-0x0000000004DA0000-0x0000000004EBB000-memory.dmp	family_djvu
behavioral1/memory/512-119-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1620-125-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1620-130-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Vidar Stealer 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral1/memory/3252-138-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/3252-139-0x00000000004A192D-mapping.dmp	family_vidar
behavioral1/memory/3252-142-0x0000000000400000-0x00000000004D9000-memory.dmp	family_vidar
behavioral1/memory/3608-141-0x0000000003440000-0x0000000003516000-memory.dmp	family_vidar

Downloads MZ/PE file
Executes dropped EXE 8 IoCs

Processes:

build2.exebuild3.exebuild2.exebuild3.exemstsca.exemstsca.exemstsca.exemstsca.exe

pid process

3608 build2.exe
1036 build3.exe
3252 build2.exe
956 build3.exe
3916 mstsca.exe
2292 mstsca.exe
2900 mstsca.exe
1764 mstsca.exe
Loads dropped DLL 2 IoCs

Processes:

build2.exe

pid process

3252 build2.exe
3252 build2.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

1112 icacls.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
T1081
Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

pid	process
3608	build2.exe
1036	build3.exe
3252	build2.exe
956	build3.exe
3916	mstsca.exe
2292	mstsca.exe
2900	mstsca.exe
1764	mstsca.exe

pid	process
3252	build2.exe
3252	build2.exe

pid	process
1112	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\7f20b295-c57e-4eba-9b34-914363f18d4b\\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe\" --AutoStart"	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

10 api.2ip.ua
11 api.2ip.ua
16 api.2ip.ua

flow	ioc
10	api.2ip.ua
11	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

Processes:

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exea4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exebuild2.exebuild3.exemstsca.exemstsca.exe

description	pid	process	target process
PID 2416 set thread context of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 set thread context of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 3608 set thread context of 3252	3608	build2.exe	build2.exe
PID 1036 set thread context of 956	1036	build3.exe	build3.exe
PID 3916 set thread context of 2292	3916	mstsca.exe	mstsca.exe
PID 2900 set thread context of 1764	2900	mstsca.exe	mstsca.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

build2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2748 schtasks.exe
1724 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3496 timeout.exe
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2212 taskkill.exe

pid	process
2748	schtasks.exe
1724	schtasks.exe

pid	process
3496	timeout.exe

pid	process
2212	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exea4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exebuild2.exe

pid	process
512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe
3252	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2212 taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2212	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exea4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exea4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exea4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exebuild2.exebuild3.exebuild3.exebuild2.execmd.exemstsca.exe

description	pid	process	target process
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 2416 wrote to memory of 512	2416	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 512 wrote to memory of 1112	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	icacls.exe
PID 512 wrote to memory of 1112	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	icacls.exe
PID 512 wrote to memory of 1112	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	icacls.exe
PID 512 wrote to memory of 1424	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 512 wrote to memory of 1424	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 512 wrote to memory of 1424	512	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1424 wrote to memory of 1620	1424	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
PID 1620 wrote to memory of 3608	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build2.exe
PID 1620 wrote to memory of 3608	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build2.exe
PID 1620 wrote to memory of 3608	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build2.exe
PID 1620 wrote to memory of 1036	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build3.exe
PID 1620 wrote to memory of 1036	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build3.exe
PID 1620 wrote to memory of 1036	1620	a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe	build3.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 3608 wrote to memory of 3252	3608	build2.exe	build2.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 1036 wrote to memory of 956	1036	build3.exe	build3.exe
PID 956 wrote to memory of 2748	956	build3.exe	schtasks.exe
PID 956 wrote to memory of 2748	956	build3.exe	schtasks.exe
PID 956 wrote to memory of 2748	956	build3.exe	schtasks.exe
PID 3252 wrote to memory of 1968	3252	build2.exe	cmd.exe
PID 3252 wrote to memory of 1968	3252	build2.exe	cmd.exe
PID 3252 wrote to memory of 1968	3252	build2.exe	cmd.exe
PID 1968 wrote to memory of 2212	1968	cmd.exe	taskkill.exe
PID 1968 wrote to memory of 2212	1968	cmd.exe	taskkill.exe
PID 1968 wrote to memory of 2212	1968	cmd.exe	taskkill.exe
PID 1968 wrote to memory of 3496	1968	cmd.exe	timeout.exe
PID 1968 wrote to memory of 3496	1968	cmd.exe	timeout.exe
PID 1968 wrote to memory of 3496	1968	cmd.exe	timeout.exe
PID 3916 wrote to memory of 2292	3916	mstsca.exe	mstsca.exe
PID 3916 wrote to memory of 2292	3916	mstsca.exe	mstsca.exe
PID 3916 wrote to memory of 2292	3916	mstsca.exe	mstsca.exe

C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
"C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2416

C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
"C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe"
2⤵
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:512

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\7f20b295-c57e-4eba-9b34-914363f18d4b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:1112

C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
"C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1424

C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
"C:\Users\Admin\AppData\Local\Temp\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1620

C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe
"C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3608

C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe
"C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe"
6⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3252

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe" & del C:\ProgramData\*.dll & exit
7⤵
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\SysWOW64\taskkill.exe
taskkill /im build2.exe /f
8⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2212

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
8⤵
- Delays execution with timeout.exe
PID:3496

C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe
"C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1036

C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe
"C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe"
6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
7⤵
- Creates scheduled task(s)
PID:2748

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3916

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:2292

C:\Windows\SysWOW64\schtasks.exe
/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
3⤵
- Creates scheduled task(s)
PID:1724

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
PID:2900

C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
2⤵
- Executes dropped EXE
PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

File Permissions Modification

T1222

Modify Registry

T1112

Install Root Certificate

T1130

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\freebl3.dll
MD5
ef2834ac4ee7d6724f255beaf527e635

SHA1
5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

SHA256
a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

SHA512
c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

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C:\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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C:\ProgramData\msvcp140.dll
MD5
109f0f02fd37c84bfc7508d4227d7ed5

SHA1
ef7420141bb15ac334d3964082361a460bfdb975

SHA256
334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

SHA512
46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

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C:\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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C:\ProgramData\softokn3.dll
MD5
a2ee53de9167bf0d6c019303b7ca84e5

SHA1
2a3c737fa1157e8483815e98b666408a18c0db42

SHA256
43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

SHA512
45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

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C:\ProgramData\vcruntime140.dll
MD5
7587bf9cb4147022cd5681b015183046

SHA1
f2106306a8f6f0da5afb7fc765cfa0757ad5a628

SHA256
c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

SHA512
0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
c15f85c5991237ce8b305880987044fe

SHA1
ccaf552f51535d65d0bf68b94a4f7c3fdafa0e18

SHA256
b5ef9caae0c5023680c4ed7c23c02a15425a1c185ab6fd9c68cc76a1630b7113

SHA512
634bcb05e4428bdaf1b578fd7434e74f527da7d8ffc3ff21f2f8c7198f16fe28356c9b4473ba63a30a6aa70dc41fd76d7ed162555755076fb4a41d8519394168

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
cdc7886f2e1293fd583eb76529d6bf91

SHA1
cf497bae7d69af8e6c604f40255bc1625504090e

SHA256
8d3d13a5a5bbeefdde6dc5d81e2663e982d418037cc5a16bd59be81a5157df8a

SHA512
ff7e44f67bd2c1d7e0840f6be444e6fd0a08b3fb5668d2c5f7cd0437b7011348551bc65781b797d7df3027d08d34508a9de46443fa471d6706555667a8869380

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
MD5
4589f48db971730d5d7a8614d6baf609

SHA1
b938538057a5b2f3d30982e5a39f6408705054bc

SHA256
d394f6b9df8b9a278158b5b5e700cb72d3778c20c858808b7b4fd2ba526e78ca

SHA512
c3b901edabb4c579c351fde5cd8096a92ab47574cd8a73c0571708e8763e2ff090ca170ad7574d4115eeca661335d6276667d8768e878795eedb14f46542c292

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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
MD5
a2928015454ff8c9d54085b77d6745f5

SHA1
0cae65d8b4240c661cfa00472c6d4f8b60205081

SHA256
f08798dd0dd3493e91271765d52c3b40f7b139fa883762da9a18e5cd079c09a2

SHA512
28256eaec7b1a5bc2336065458423e4f9e8c27f585d906a25639da9247376fa0fd1836c637234ba5f714b4bd08ea0f6da9c34ea67c87403aab649b018152f201

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build2.exe
MD5
673a786d98cb5709caaf1797142e0e6e

SHA1
4e2abf2aa7c9418a34815dc02c272a859eea23a6

SHA256
b115531ef23c109fb58c392379b7f55eff11169e1317b263da60edd9ac98f6b1

SHA512
83fcccd08944e8c578482a945d38f756ef7cb959d6796c3830fb3e582205c5924b7bb1fb495aaffeacb2f7ac838730e5e7c01e6dcce54ea624be98635b3e3044

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\5c4d8dbc-dbe8-4e35-ae34-44ad193f3a52\build3.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Local\7f20b295-c57e-4eba-9b34-914363f18d4b\a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66.exe
MD5
3a21f98382d8c62bbc0db98b5ef52a61

SHA1
7cc592b0d0e7a739ecd56df4244f77326d829b43

SHA256
a4931dd2aade6ff611390007ecc980d32b77c594509bdea5cfafeb86504e9f66

SHA512
adbe1fae74ad00f2ffdb713920d5b83a18c94a50036d712343889974f0b98eeb29c8d9afacb59ac01762facc9721336f2ae705d80b214b84512a8f0207a7ab37

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
MD5
0fea771099e342facd95a9d659548919

SHA1
9f8b56a37870f8b4ac5aa0ff5677a666f94c7197

SHA256
6f032f671284b3812373e90b0ab5b16ea737bd7dc87d22b8f2aabe558334e403

SHA512
2c1eeb2909acdc1ac36a677dba5131775e97dd107cd60f03bc6672be1791b2dd83a9f588719cb376cc4771570c6b2c202e783e30450ae3c2aa48bbaf2ee049c3

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\ProgramData\mozglue.dll
MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

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\ProgramData\nss3.dll
MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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memory/512-117-0x0000000000424141-mapping.dmp

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memory/512-116-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/512-119-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/956-144-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/956-145-0x0000000000401AFA-mapping.dmp

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memory/956-149-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

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memory/1036-148-0x0000000003260000-0x0000000003264000-memory.dmp

Filesize
16KB

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memory/1036-135-0x0000000000000000-mapping.dmp

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memory/1112-120-0x0000000000000000-mapping.dmp

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memory/1424-123-0x0000000003125000-0x00000000031B7000-memory.dmp

Filesize
584KB

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memory/1424-122-0x0000000000000000-mapping.dmp

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memory/1620-125-0x0000000000424141-mapping.dmp

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memory/1620-130-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

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memory/1724-167-0x0000000000000000-mapping.dmp

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memory/1764-172-0x0000000000401AFA-mapping.dmp

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memory/1968-152-0x0000000000000000-mapping.dmp

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memory/2212-153-0x0000000000000000-mapping.dmp

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memory/2292-165-0x0000000000401AFA-mapping.dmp

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memory/2416-115-0x0000000004CCD000-0x0000000004D5F000-memory.dmp

Filesize
584KB

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memory/2416-118-0x0000000004DA0000-0x0000000004EBB000-memory.dmp

Filesize
1.1MB

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memory/2748-147-0x0000000000000000-mapping.dmp

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memory/3252-139-0x00000000004A192D-mapping.dmp

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memory/3252-138-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/3252-142-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

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memory/3496-154-0x0000000000000000-mapping.dmp

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memory/3608-141-0x0000000003440000-0x0000000003516000-memory.dmp

Filesize
856KB

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memory/3608-131-0x0000000000000000-mapping.dmp

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memory/3608-134-0x0000000001A16000-0x0000000001A92000-memory.dmp

Filesize
496KB

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memory/3916-163-0x0000000003529000-0x0000000003539000-memory.dmp

Filesize
64KB

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memory/3916-168-0x0000000003250000-0x000000000339A000-memory.dmp

Filesize
1.3MB

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