81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717

Analysis

max time kernel
151s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 23:14

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General

Target

81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe
Size

136KB
MD5

6e912e50c896ae4297a3bdee8eed3a38
SHA1

44dfd14c206512d8779d4da5abba9c4d3f14004e
SHA256

81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717
SHA512

5d27fe31c674f29cc643261ad361ebcfbf1c0657683d1a3d8d5f36e44a2080a935d6f6cc3c9437b1512f83afe4b96815eb0ba1b7701c2fc7ea91e3e7b5cf8c92
SSDEEP

3072:tShmzuS92gMdjac9S+dPFIpB3UASnsu+/5oIIym:tSh+aac4+dNIDRSsv/5Y

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.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	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.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
4988	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4988	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2996	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 3468	2996	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe	79
PID 2996 wrote to memory of 3468	2996	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe	79
PID 2996 wrote to memory of 3468	2996	81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe	79
PID 3468 wrote to memory of 4988	3468	cmd.exe	81
PID 3468 wrote to memory of 4988	3468	cmd.exe	81
PID 3468 wrote to memory of 4988	3468	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe
"C:\Users\Admin\AppData\Local\Temp\81ddb594b7d10967ce19248d3de15cb89b361f6b4e56cb8549ac74df7905c717.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del 81ddb594b7d10967ce19248d3de15cb89b
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:4988

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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