Analysis
-
max time kernel
150s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
24-07-2022 23:37
Static task
static1
Behavioral task
behavioral1
Sample
574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe
Resource
win10v2004-20220721-en
General
-
Target
574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe
-
Size
360KB
-
MD5
8aea38995c4125b4721a8377a10736ee
-
SHA1
2175d7c1a97c15b30585208ba8379aa2aa08a002
-
SHA256
574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6
-
SHA512
83457d4320de6850fd4370719666cdc86f3255a385c1875d4c9edab98b2a09902ce9e581429a9ebb2f4b76761c64c8ea3b2ad50c5683d3a11ce392222ac7f6d1
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_ReCoVeRy_+mihkf.txt
teslacrypt
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/13C2F56D4495C5A3
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/13C2F56D4495C5A3
http://yyre45dbvn2nhbefbmh.begumvelic.at/13C2F56D4495C5A3
http://xlowfznrg4wf7dli.ONION/13C2F56D4495C5A3
Extracted
C:\$Recycle.Bin\S-1-5-21-4084403625-2215941253-1760665084-1000\_ReCoVeRy_+mihkf.html
Signatures
-
TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
-
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
-
Executes dropped EXE 2 IoCs
pid Process 944 afsjouqyhilm.exe 1168 afsjouqyhilm.exe -
Deletes itself 1 IoCs
pid Process 1416 cmd.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\SOFTWARE\Microsoft\WINDOWS\CurrentVersion\RUN afsjouqyhilm.exe Set value (str) \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows\CurrentVersion\Run\vaqikpi = "C:\\Windows\\system32\\CMD.EXE /c start C:\\Windows\\afsjouqyhilm.exe" afsjouqyhilm.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2032 set thread context of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 944 set thread context of 1168 944 afsjouqyhilm.exe 32 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files\7-Zip\History.txt afsjouqyhilm.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\afsjouqyhilm.exe 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe File opened for modification C:\Windows\afsjouqyhilm.exe 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Suspicious behavior: EnumeratesProcesses 24 IoCs
pid Process 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe 1168 afsjouqyhilm.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeDebugPrivilege 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe Token: SeDebugPrivilege 1168 afsjouqyhilm.exe Token: SeIncreaseQuotaPrivilege 1892 WMIC.exe Token: SeSecurityPrivilege 1892 WMIC.exe Token: SeTakeOwnershipPrivilege 1892 WMIC.exe Token: SeLoadDriverPrivilege 1892 WMIC.exe Token: SeSystemProfilePrivilege 1892 WMIC.exe Token: SeSystemtimePrivilege 1892 WMIC.exe Token: SeProfSingleProcessPrivilege 1892 WMIC.exe Token: SeIncBasePriorityPrivilege 1892 WMIC.exe Token: SeCreatePagefilePrivilege 1892 WMIC.exe Token: SeBackupPrivilege 1892 WMIC.exe Token: SeRestorePrivilege 1892 WMIC.exe Token: SeShutdownPrivilege 1892 WMIC.exe Token: SeDebugPrivilege 1892 WMIC.exe Token: SeSystemEnvironmentPrivilege 1892 WMIC.exe Token: SeRemoteShutdownPrivilege 1892 WMIC.exe Token: SeUndockPrivilege 1892 WMIC.exe Token: SeManageVolumePrivilege 1892 WMIC.exe Token: 33 1892 WMIC.exe Token: 34 1892 WMIC.exe Token: 35 1892 WMIC.exe Token: SeIncreaseQuotaPrivilege 1892 WMIC.exe Token: SeSecurityPrivilege 1892 WMIC.exe Token: SeTakeOwnershipPrivilege 1892 WMIC.exe Token: SeLoadDriverPrivilege 1892 WMIC.exe Token: SeSystemProfilePrivilege 1892 WMIC.exe Token: SeSystemtimePrivilege 1892 WMIC.exe Token: SeProfSingleProcessPrivilege 1892 WMIC.exe Token: SeIncBasePriorityPrivilege 1892 WMIC.exe Token: SeCreatePagefilePrivilege 1892 WMIC.exe Token: SeBackupPrivilege 1892 WMIC.exe Token: SeRestorePrivilege 1892 WMIC.exe Token: SeShutdownPrivilege 1892 WMIC.exe Token: SeDebugPrivilege 1892 WMIC.exe Token: SeSystemEnvironmentPrivilege 1892 WMIC.exe Token: SeRemoteShutdownPrivilege 1892 WMIC.exe Token: SeUndockPrivilege 1892 WMIC.exe Token: SeManageVolumePrivilege 1892 WMIC.exe Token: 33 1892 WMIC.exe Token: 34 1892 WMIC.exe Token: 35 1892 WMIC.exe Token: SeBackupPrivilege 1380 vssvc.exe Token: SeRestorePrivilege 1380 vssvc.exe Token: SeAuditPrivilege 1380 vssvc.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 2032 wrote to memory of 820 2032 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 28 PID 820 wrote to memory of 944 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 29 PID 820 wrote to memory of 944 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 29 PID 820 wrote to memory of 944 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 29 PID 820 wrote to memory of 944 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 29 PID 820 wrote to memory of 1416 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 30 PID 820 wrote to memory of 1416 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 30 PID 820 wrote to memory of 1416 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 30 PID 820 wrote to memory of 1416 820 574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe 30 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 944 wrote to memory of 1168 944 afsjouqyhilm.exe 32 PID 1168 wrote to memory of 1892 1168 afsjouqyhilm.exe 33 PID 1168 wrote to memory of 1892 1168 afsjouqyhilm.exe 33 PID 1168 wrote to memory of 1892 1168 afsjouqyhilm.exe 33 PID 1168 wrote to memory of 1892 1168 afsjouqyhilm.exe 33 -
System policy modification 1 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System afsjouqyhilm.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" afsjouqyhilm.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe"C:\Users\Admin\AppData\Local\Temp\574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Users\Admin\AppData\Local\Temp\574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe"C:\Users\Admin\AppData\Local\Temp\574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6.exe"2⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:820 -
C:\Windows\afsjouqyhilm.exeC:\Windows\afsjouqyhilm.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:944 -
C:\Windows\afsjouqyhilm.exeC:\Windows\afsjouqyhilm.exe4⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1168 -
C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1892
-
-
-
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\574CBE~1.EXE3⤵
- Deletes itself
PID:1416
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1380
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
360KB
MD58aea38995c4125b4721a8377a10736ee
SHA12175d7c1a97c15b30585208ba8379aa2aa08a002
SHA256574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6
SHA51283457d4320de6850fd4370719666cdc86f3255a385c1875d4c9edab98b2a09902ce9e581429a9ebb2f4b76761c64c8ea3b2ad50c5683d3a11ce392222ac7f6d1
-
Filesize
360KB
MD58aea38995c4125b4721a8377a10736ee
SHA12175d7c1a97c15b30585208ba8379aa2aa08a002
SHA256574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6
SHA51283457d4320de6850fd4370719666cdc86f3255a385c1875d4c9edab98b2a09902ce9e581429a9ebb2f4b76761c64c8ea3b2ad50c5683d3a11ce392222ac7f6d1
-
Filesize
360KB
MD58aea38995c4125b4721a8377a10736ee
SHA12175d7c1a97c15b30585208ba8379aa2aa08a002
SHA256574cbeac6845a9d9770f302c0d27f0ab68be23ed6fd5c1ef1e3e4e37de4a90f6
SHA51283457d4320de6850fd4370719666cdc86f3255a385c1875d4c9edab98b2a09902ce9e581429a9ebb2f4b76761c64c8ea3b2ad50c5683d3a11ce392222ac7f6d1