djvu | a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733

Analysis

max time kernel
100s
max time network
173s
platform
windows7_x64
resource
win7v20210408
submitted
08/09/2021, 09:07

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General

Target
a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
Size 797KB
Sample210908-k3cafshdal
SHA256 a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733
MD5 c04e0e7fc9399d95c42611a9bb8b0e90
SHA1 d3c65ae27e5763faff80e11b5c7607ee81b0e825
SHA512 b35b8bd47261878dc0a1384515736154a59a0c3dcbf10a317e33fe5fcd79a39d730a348041ca2723164b8e9cde79972a8816d2713aa273f2215589ee6f129964
MD5 SHA1 SHA512

Score

10^/10

djvu vidar 517 discovery persistence ransomware spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

40.5

Botnet

https://gheorghip.tumblr.com/

Attributes

profile_id
517

Signatures

Detected Djvu ransomeware 6 IoCs

resource	yara_rule
behavioral1/memory/1992-61-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1992-60-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1724-63-0x0000000002EF0000-0x000000000300B000-memory.dmp	family_djvu
behavioral1/memory/1992-64-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1484-69-0x0000000000424141-mapping.dmp	family_djvu
behavioral1/memory/1484-77-0x0000000000400000-0x0000000000537000-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
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request
suricata
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
suricata
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil
suricata

Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral1/memory/948-83-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/948-84-0x000000000049EC7D-mapping.dmp	family_vidar
behavioral1/memory/948-88-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vidar
behavioral1/memory/752-87-0x00000000021D0000-0x00000000022A2000-memory.dmp	family_vidar

Downloads MZ/PE file

Executes dropped EXE 8 IoCs

pid	Process
752	build2.exe
948	build2.exe
1952	build3.exe
2036	build3.exe
1612	mstsca.exe
528	mstsca.exe
1452	mstsca.exe
972	mstsca.exe

Loads dropped DLL 8 IoCs

pid	Process
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
948	build2.exe
948	build2.exe
948	build2.exe
948	build2.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
976	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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\36c8385a-e4ee-4181-bf4b-6f0364025bc2\\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe\" --AutoStart"	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.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.

flow	ioc
6	api.2ip.ua
7	api.2ip.ua
15	api.2ip.ua

Suspicious use of SetThreadContext 6 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1372 set thread context of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 752 set thread context of 948	752	build2.exe	37
PID 1952 set thread context of 2036	1952	build3.exe	39
PID 1612 set thread context of 528	1612	mstsca.exe	50
PID 1452 set thread context of 972	1452	mstsca.exe	54

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

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

pid	Process
1804	schtasks.exe
968	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1152	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1400	taskkill.exe

Modifies system certificate store 2 TTPs 5 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
948	build2.exe
948	build2.exe
948	build2.exe
948	build2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1400	taskkill.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1724 wrote to memory of 1992	1724	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	29
PID 1992 wrote to memory of 976	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	32
PID 1992 wrote to memory of 976	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	32
PID 1992 wrote to memory of 976	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	32
PID 1992 wrote to memory of 976	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	32
PID 1992 wrote to memory of 1372	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	33
PID 1992 wrote to memory of 1372	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	33
PID 1992 wrote to memory of 1372	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	33
PID 1992 wrote to memory of 1372	1992	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	33
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1372 wrote to memory of 1484	1372	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	34
PID 1484 wrote to memory of 752	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	36
PID 1484 wrote to memory of 752	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	36
PID 1484 wrote to memory of 752	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	36
PID 1484 wrote to memory of 752	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	36
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 752 wrote to memory of 948	752	build2.exe	37
PID 1484 wrote to memory of 1952	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	38
PID 1484 wrote to memory of 1952	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	38
PID 1484 wrote to memory of 1952	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	38
PID 1484 wrote to memory of 1952	1484	a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe	38
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 1952 wrote to memory of 2036	1952	build3.exe	39
PID 2036 wrote to memory of 1804	2036	build3.exe	40
PID 2036 wrote to memory of 1804	2036	build3.exe	40
PID 2036 wrote to memory of 1804	2036	build3.exe	40
PID 2036 wrote to memory of 1804	2036	build3.exe	40
PID 948 wrote to memory of 1308	948	build2.exe	43
PID 948 wrote to memory of 1308	948	build2.exe	43
PID 948 wrote to memory of 1308	948	build2.exe	43

C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
"C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
  "C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe"
  2⤵
  - Adds Run key to start application
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\36c8385a-e4ee-4181-bf4b-6f0364025bc2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:976
- - C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
    "C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1372
  - - C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe
      "C:\Users\Admin\AppData\Local\Temp\a8701b8d256bbccb00be92735e6b98f258d79efb875d8839e1c0ce09d16c3733.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Loads dropped DLL
      Modifies system certificate store
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1484
    - - C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build2.exe
        
        "C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build2.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:752
      - C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build2.exe
        
        "C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build2.exe"
        6⤵
        Executes dropped EXE
        Loads dropped DLL
        Checks processor information in registry
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:948
        
        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\45da247d-f82f-4b60-97ad-147e1b6071b3\build2.exe" & del C:\ProgramData\*.dll & exit
        7⤵
        
        PID:1308
        
        C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im build2.exe /f
        8⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1400
        
        C:\Windows\SysWOW64\timeout.exe
        
        timeout /t 6
        8⤵
        Delays execution with timeout.exe
        
        PID:1152
    - - C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build3.exe
        
        "C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build3.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Suspicious use of WriteProcessMemory
        
        PID:1952
      - C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build3.exe
        
        "C:\Users\Admin\AppData\Local\45da247d-f82f-4b60-97ad-147e1b6071b3\build3.exe"
        6⤵
        Executes dropped EXE
        Suspicious use of WriteProcessMemory
        
        PID:2036
        
        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:1804

C:\Windows\system32\taskeng.exe
taskeng.exe {6C20AF2A-7743-4373-8E36-1DCCE7166031} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
1⤵
PID:1276
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1612
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:528
  - - 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"
      4⤵
      Creates scheduled task(s)
      PID:968
- C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1452
- - C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    3⤵
    - Executes dropped EXE
    PID:972

Network

MITRE ATT&CK Enterprise 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 and Directory Permissions Modification

T1222

Install Root Certificate

T1130

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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memory/752-87-0x00000000021D0000-0x00000000022A2000-memory.dmp

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memory/948-88-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/948-83-0x0000000000400000-0x00000000004D5000-memory.dmp

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memory/1484-77-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1724-63-0x0000000002EF0000-0x000000000300B000-memory.dmp

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memory/1952-99-0x00000000001B0000-0x00000000001B4000-memory.dmp

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memory/1992-60-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/1992-62-0x00000000769B1000-0x00000000769B3000-memory.dmp

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memory/1992-64-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2036-94-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/2036-100-0x0000000000400000-0x0000000000406000-memory.dmp

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