d9863b7b710599bc2b308a0b78970da8c42ee5bc6d3dcda05c2de52a88125726

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09/08/2024, 09:09

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General

Target
sahost.exe
Size 635KB
Sample240809-k4h5dssemf
SHA256 d9863b7b710599bc2b308a0b78970da8c42ee5bc6d3dcda05c2de52a88125726
MD5 92e7773bd2be4ff8dd137c8cfdef08c3
SHA1 dbcf1772fc6d31aa65b6a481662c808880ce5611
SHA512 7d3caa57f6585ffe44d3418df60f56e0ebe3937362788f5b509b3ac242852fd01aa833818d01130d192aed975783b3f3036c5e29a2d2a2deb84dff2b49d0b159
SSDEEP 12288:UPH4AnF0/ZDVliwXM0QxetWs2wqH4qRN7icI+bqs2kC:UAkEN5XMHxjYgwbo
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
1216	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sahost.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
2536	sahost.exe
1216	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	sahost.exe
Token: SeDebugPrivilege	1216	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 1216	2536	sahost.exe	31
PID 2536 wrote to memory of 1216	2536	sahost.exe	31
PID 2536 wrote to memory of 1216	2536	sahost.exe	31
PID 2536 wrote to memory of 1216	2536	sahost.exe	31
PID 2536 wrote to memory of 2472	2536	sahost.exe	32
PID 2536 wrote to memory of 2472	2536	sahost.exe	32
PID 2536 wrote to memory of 2472	2536	sahost.exe	32
PID 2536 wrote to memory of 2472	2536	sahost.exe	32
PID 2536 wrote to memory of 2768	2536	sahost.exe	35
PID 2536 wrote to memory of 2768	2536	sahost.exe	35
PID 2536 wrote to memory of 2768	2536	sahost.exe	35
PID 2536 wrote to memory of 2768	2536	sahost.exe	35
PID 2536 wrote to memory of 2788	2536	sahost.exe	36
PID 2536 wrote to memory of 2788	2536	sahost.exe	36
PID 2536 wrote to memory of 2788	2536	sahost.exe	36
PID 2536 wrote to memory of 2788	2536	sahost.exe	36
PID 2536 wrote to memory of 2904	2536	sahost.exe	37
PID 2536 wrote to memory of 2904	2536	sahost.exe	37
PID 2536 wrote to memory of 2904	2536	sahost.exe	37
PID 2536 wrote to memory of 2904	2536	sahost.exe	37
PID 2536 wrote to memory of 2908	2536	sahost.exe	38
PID 2536 wrote to memory of 2908	2536	sahost.exe	38
PID 2536 wrote to memory of 2908	2536	sahost.exe	38
PID 2536 wrote to memory of 2908	2536	sahost.exe	38
PID 2536 wrote to memory of 2924	2536	sahost.exe	39
PID 2536 wrote to memory of 2924	2536	sahost.exe	39
PID 2536 wrote to memory of 2924	2536	sahost.exe	39
PID 2536 wrote to memory of 2924	2536	sahost.exe	39

C:\Users\Admin\AppData\Local\Temp\sahost.exe
"C:\Users\Admin\AppData\Local\Temp\sahost.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gApdcwqSVchd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1216
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gApdcwqSVchd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFB30.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2472
- C:\Users\Admin\AppData\Local\Temp\sahost.exe
  "C:\Users\Admin\AppData\Local\Temp\sahost.exe"
  2⤵
  PID:2768
- C:\Users\Admin\AppData\Local\Temp\sahost.exe
  "C:\Users\Admin\AppData\Local\Temp\sahost.exe"
  2⤵
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\sahost.exe
  "C:\Users\Admin\AppData\Local\Temp\sahost.exe"
  2⤵
  PID:2904
- C:\Users\Admin\AppData\Local\Temp\sahost.exe
  "C:\Users\Admin\AppData\Local\Temp\sahost.exe"
  2⤵
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\sahost.exe
  "C:\Users\Admin\AppData\Local\Temp\sahost.exe"
  2⤵
  PID:2924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmpFB30.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpFB30.tmp
Size 1KB
SHA256 a1605656c3f5af206be94b63fb262e4bd30c2da17fa654dc380945d86a2feb12
MD5 2f46dcdf511675e46dcfef1877d06796
SHA1 8b24991a3a8ed467f09eb82b32e76adc9903d9ff
SHA512 6e543411395f4ea2649b4dbd310ce96d83dcd8cd0da7be93f207842f9d2e6ebfb3463f6f093826aaa3621cf6508ba34e7fcd30fcca01edf6f2a1df4446456632
MD5 SHA1 SHA512

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memory/2536-0-0x000000007484E000-0x000000007484F000-memory.dmp

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memory/2536-1-0x00000000003B0000-0x0000000000454000-memory.dmp

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memory/2536-2-0x0000000074840000-0x0000000074F2E000-memory.dmp

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memory/2536-3-0x0000000000300000-0x000000000031A000-memory.dmp

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memory/2536-4-0x00000000002B0000-0x00000000002BE000-memory.dmp

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memory/2536-5-0x0000000000340000-0x0000000000356000-memory.dmp

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memory/2536-6-0x0000000005080000-0x00000000050E8000-memory.dmp

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memory/2536-14-0x0000000074840000-0x0000000074F2E000-memory.dmp

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