b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12

Analysis

max time kernel
32s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/10/2022, 18:49

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General

Target

b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe
Size

55KB
MD5

838160b288d6f1415bb01765c9d0bb00
SHA1

b8508a60810e5dc862a03b1c3d405b467835b3a7
SHA256

b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12
SHA512

5134399ed6dff9087e7da811cc8d4a3f52749246e0bacb7ecb8022b2edfeafb8e90be0664d82ae013d377f629844908ef4a9f7c2c3b7a23201eb2f863700145f
SSDEEP

768:3aVIgNvfuKhVrWVauwDLTYYKFPELrMXqet3xNdWGdn0gZKMxLI373l2Ur29TZzG:3aavKW/noCt35WGdn0gZFxLIr389NzG

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2032	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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.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
1680	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1680	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1904	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2032	1904	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe	28
PID 1904 wrote to memory of 2032	1904	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe	28
PID 1904 wrote to memory of 2032	1904	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe	28
PID 1904 wrote to memory of 2032	1904	b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe	28
PID 2032 wrote to memory of 1680	2032	cmd.exe	30
PID 2032 wrote to memory of 1680	2032	cmd.exe	30
PID 2032 wrote to memory of 1680	2032	cmd.exe	30
PID 2032 wrote to memory of 1680	2032	cmd.exe	30

C:\Users\Admin\AppData\Local\Temp\b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe
"C:\Users\Admin\AppData\Local\Temp\b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe"
1⤵
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del b37415827a15537773cdc0e441aceff4f9952157a8a26f70e8896d4e3d439c12.exe
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1680

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/1904-56-0x00000000762D1000-0x00000000762D3000-memory.dmp

Filesize
8KB

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