81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db

Analysis

max time kernel
40s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/12/2022, 22:19

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General

Target

81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe
Size

156KB
MD5

510046a8c4c923f986e2bf438f15e756
SHA1

19f0150cc4552f45a13b8684d88a204db924f00a
SHA256

81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db
SHA512

a7f73badbdb9321a0939a7df829280f3741ad892469f57abf0e7981cff9503c3c860b9b6b7f014e8389af931c2e6d1ac09db99d9d1fbacec8059bb2f65088dd8
SSDEEP

3072:AYC50Rnj7RLkstRFbBObCxame6GAgk6eM25TRzz31vk6CD:BLksVBObCxame6GAgTeM251zzVO

Score

6^/10

Malware Config

Signatures

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.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
460	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	460	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1488	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 904	1488	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe	28
PID 1488 wrote to memory of 904	1488	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe	28
PID 1488 wrote to memory of 904	1488	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe	28
PID 1488 wrote to memory of 904	1488	81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe	28
PID 904 wrote to memory of 460	904	cmd.exe	30
PID 904 wrote to memory of 460	904	cmd.exe	30
PID 904 wrote to memory of 460	904	cmd.exe	30
PID 904 wrote to memory of 460	904	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe
"C:\Users\Admin\AppData\Local\Temp\81f1c6cc809777bd74fde9b170e2122cbaac850e15f3a1fefd4fdf32499de8db.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 81f1c6cc809777bd74fde9b170e2122cba
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:460

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

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Downloads

memory/1488-56-0x0000000076681000-0x0000000076683000-memory.dmp

Filesize
8KB

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