2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12

Analysis

max time kernel
124s
max time network
134s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 14:41

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General

Target
Client.exe
Size 3.1MB
Sample240109-r2e4aadhc7
SHA256 2f511d2b5082a059bbc56ddd78b3a2dbe221941f70b42d1e7740dbdcd4a5be12
MD5 1a9fc6d523ce020286a56241c37badcf
SHA1 f68451dece1943443ac6a77cceb4bb447eaeb5dc
SHA512 11f731dea0d621be05d090e634b352e10ed7f0df19808561e1be030175ddc22c84fd614a70af838824da8daa2a56871fc0969686c4245846c01ef08d0f72ed61
SSDEEP 49152:fvLlL26AaNeWgPhlmVqvMQ7XSKwXRJ6abR3LoGdu5THHB72eh2NT:fvxL26AaNeWgPhlmVqkQ7XSKwXRJ60
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2008	Realtek.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/Job

T1053

pid	Process
2296	schtasks.exe
2260	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2404	Client.exe
Token: SeDebugPrivilege	2008	Realtek.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2008	Realtek.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2296	2404	Client.exe	28
PID 2404 wrote to memory of 2296	2404	Client.exe	28
PID 2404 wrote to memory of 2296	2404	Client.exe	28
PID 2404 wrote to memory of 2008	2404	Client.exe	29
PID 2404 wrote to memory of 2008	2404	Client.exe	29
PID 2404 wrote to memory of 2008	2404	Client.exe	29
PID 2008 wrote to memory of 2260	2008	Realtek.exe	32
PID 2008 wrote to memory of 2260	2008	Realtek.exe	32
PID 2008 wrote to memory of 2260	2008	Realtek.exe	32

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\Client.exe
"C:\Users\Admin\AppData\Local\Temp\Client.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\system32\schtasks.exe
  "schtasks" /create /tn "Realtek Audio Manager" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe" /rl HIGHEST /f
  2⤵
  - Creates scheduled task(s)
  PID:2296
- C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe
  "C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\system32\schtasks.exe
    "schtasks" /create /tn "Realtek Audio Manager" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe" /rl HIGHEST /f
    3⤵
    - Creates scheduled task(s)
    PID:2260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Realtek.exe

Path C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe
Size 11KB
SHA256 0cb7559004fd9c9ab3ddfa747e2c6a7e2eb9f44a55cdd959b7e0f8fd3ae11168
MD5 f4c557e2ef2a8481ea130b4b583cac13
SHA1 c0e42de5636b3f089e80cc58c7274dc4a8edf5b1
SHA512 ebb48ec5a5fc644a0a8a470a99a87fb77a2f8379a8b08aabbbedc368fd6dc1e85d8f6e9e67801d8b8ae5dd1c0ee94e9b421ed55a0745bdd661181981ea7ddae3
SSDEEP 192:0dILC5VR70MTTMFn/JCwN06acf4qpN4jW5Rl9Awdslc0xV/WRdrdBUv92L31:8r0MTIFn/PN+C4WPD/Awvdp
MD5 SHA1 SHA512 SSDEEP

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Realtek.exe

Path C:\Users\Admin\AppData\Roaming\Realtek Audio Manager\Realtek.exe
Size 1KB
SHA256 b22d3418a2d6996d7979157b41b3f629a90f2e8ec9f0e3a0965ee8e8ed125366
MD5 fbb1ca052e122cb867cf2f16ade77ef1
SHA1 9f5f8b9ff0b3f830a6c9a3ee84ecee4def430bf3
SHA512 0780352cdbb76ecf25a68de043a23ed313854515c3e5cca40c7dabe75c5a54c0b8ffcc6c721a616170522cf3338d5fb76246b364cb4f8490f9ef98121a1b4f31
MD5 SHA1 SHA512

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memory/2008-10-0x000000001B190000-0x000000001B210000-memory.dmp

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memory/2008-9-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

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memory/2008-7-0x00000000011C0000-0x00000000014E4000-memory.dmp

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memory/2008-11-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

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memory/2008-12-0x000000001B190000-0x000000001B210000-memory.dmp

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memory/2404-0-0x0000000001060000-0x0000000001384000-memory.dmp

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memory/2404-1-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

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memory/2404-2-0x000000001AE20000-0x000000001AEA0000-memory.dmp

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memory/2404-8-0x000007FEF5C80000-0x000007FEF666C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads