4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a

Analysis

max time kernel
47s
max time network
52s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19/10/2022, 14:01

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General

Target

4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe
Size

48KB
MD5

a1a7f36c3b0d7ad6218456fe6541d050
SHA1

b2e033a6d29ade282feba036dcd6cf3d15c9fb34
SHA256

4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a
SHA512

6b75257be9b975ca403e0ee25136d0af0ca24890edca14acdc39ac98da29f46b023586194d1bd9e9fa539fcd3ee76ebf357047e0c457c84cc9e1248975468506
SSDEEP

768:2C1JqcBnOR7NTgb2UHtaZH6yDC9VavyOAVx8:2CFKVgBqCWvDox8

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1528	cmd.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe

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

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
1272	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1272	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1380	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 1528	1380	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe	28
PID 1380 wrote to memory of 1528	1380	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe	28
PID 1380 wrote to memory of 1528	1380	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe	28
PID 1380 wrote to memory of 1528	1380	4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe	28
PID 1528 wrote to memory of 1272	1528	cmd.exe	30
PID 1528 wrote to memory of 1272	1528	cmd.exe	30
PID 1528 wrote to memory of 1272	1528	cmd.exe	30
PID 1528 wrote to memory of 1272	1528	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe
"C:\Users\Admin\AppData\Local\Temp\4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 4fb87e41ca91094ad1de146e5d53e65870fd7ade571f79cea28b11ee6aebaa5a.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1528
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1272

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1380-56-0x00000000757A1000-0x00000000757A3000-memory.dmp

Filesize
8KB

Download
memory/1380-57-0x0000000003D10000-0x00000000047CA000-memory.dmp

Filesize
10.7MB

Download