40721c7ab814b37d742cf3f4aee9bf03b8306e0e012b2aa58cb782779ab470b3 | Triage

Analysis

max time kernel
119s
max time network
133s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05-01-2024 13:15

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General

Target

43c66b28b4a9cf859e9f4440304504f6.dll
Size

31KB
MD5

43c66b28b4a9cf859e9f4440304504f6
SHA1

6d708a4e57a98fe1d2672277c0fcfc1d3e52ec7a
SHA256

40721c7ab814b37d742cf3f4aee9bf03b8306e0e012b2aa58cb782779ab470b3
SHA512

372f7b2af69a3be835224d5ede26dfbc7b791c637a0a59d33daef01bfae7c4fe5838ea0cb203698943a2e23ef35141a550c09447da3e4e1100e957e7fba68bc6
SSDEEP

768:ME8DFO6wkrHpBk9S1QFDRcPeTdm+RZP6T:MLDFpBrJBkc1QFDRpdlZm

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\uksuk.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\uksuk.dll	rundll32.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe
1504	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1504	rundll32.exe
Token: SeDebugPrivilege	1504	rundll32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 2548 wrote to memory of 1504	2548	rundll32.exe	28
PID 1504 wrote to memory of 1264	1504	rundll32.exe	10
PID 1504 wrote to memory of 1264	1504	rundll32.exe	10

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1264
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\43c66b28b4a9cf859e9f4440304504f6.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\43c66b28b4a9cf859e9f4440304504f6.dll,#1
    3⤵
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1504

Network

MITRE ATT&CK Matrix

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Downloads

memory/1264-2-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

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