aa3a42935c88ee107ba6c3309ef097c6c33e0a463e11b2e930f38378a6f64b8c

Analysis

max time kernel
147s
max time network
157s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 02:51

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General

Target
ba548fb0433e2536472167a051254a05.dll
Size 500KB
Sample240308-dcdx2ade88
SHA256 aa3a42935c88ee107ba6c3309ef097c6c33e0a463e11b2e930f38378a6f64b8c
MD5 ba548fb0433e2536472167a051254a05
SHA1 2d86ac563bcd39376836666376802680adab2219
SHA512 e84b607d9e76c1f303dfd8051b2b87d63976ecbdef2b91102366db6d6d4e77cf37208a0ab67096d3e45b1a77941c67c1849684252fb54b788e262c5e3f2e740e
SSDEEP 12288:nhxbcg9ZO2sEJAAP9pQbhZG0EsVUg70sH:vbcaZQE59p8Jfug7H
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
3	1660	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\32cbe947d8.dl	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\32cbe947d8.dl	rundll32.exe

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1660	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28
PID 2256 wrote to memory of 1660	2256	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba548fb0433e2536472167a051254a05.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ba548fb0433e2536472167a051254a05.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Drops file in System32 directory
  - Suspicious behavior: RenamesItself
  PID:1660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

32cbe947d8.dl

Path C:\Windows\SysWOW64\32cbe947d8.dl
Size 22B
SHA256 f932c3d1ec9e57957cb628164d194dc73e5b01c96d2e07b08e8bb09b46a7ac0e
MD5 a060ae9bc876392b7484817e816e5c42
SHA1 6099f2d55a8762f4a40a176bfa1d4ec48fcf70bf
SHA512 13e11df3e7929df2b18e385a062615cb965cfaad06c945b7cda545aaafb393dee99b258b267caabd7eaba10434e05fa24f850960087fac0304499c92c0395971
MD5 SHA1 SHA512

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