e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c

Analysis

max time kernel
118s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2022, 14:28

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General

Target

e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe
Size

64KB
MD5

7ccaef8d00df695b5a38018fba581130
SHA1

34f098b24b95eb19d157c9925d59c00c3142bb0f
SHA256

e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c
SHA512

563a8bf7278dd91823943ba248930a7ba48beed02ae5102f2705c8199f873a4bb85ab0c902103fca87c54d9199b033fa930bd021b98fb5fade42d468cec047d1
SSDEEP

1536:t4dNDOVpVbIl4GU5iaiY9i0byQ1CZi2eYW+PnsSPr:t5ulN6i0gC+vRr

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	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.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	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.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
1556	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1556	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4936	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 4496	4936	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe	84
PID 4936 wrote to memory of 4496	4936	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe	84
PID 4936 wrote to memory of 4496	4936	e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe	84
PID 4496 wrote to memory of 1556	4496	cmd.exe	86
PID 4496 wrote to memory of 1556	4496	cmd.exe	86
PID 4496 wrote to memory of 1556	4496	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe
"C:\Users\Admin\AppData\Local\Temp\e3640b9cfa6f6a827f89c52a880fef77c506b65756d3b2cde3c6f2e0df554e6c.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del e3640b9cfa6f6a827f89c52a880fef77c5
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:1556

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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