fe8d11285634a021a794de45ba7fc1948216db666d0a1c2fc29dc1096cd5e29d

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2024, 12:56

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General

Target

2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe
Size

41KB
MD5

bd2170004a20415c8ec3d177780f20f9
SHA1

13c4ebb1675955fe9fd77ca6fdd25f685116c4cc
SHA256

fe8d11285634a021a794de45ba7fc1948216db666d0a1c2fc29dc1096cd5e29d
SHA512

5ebb5542872b468c601e3f907c468af8257ec9e35b3ef53efff399b42127200c0d62ad94bd43d2948596eed84b384820d2f597e053ba2a53d27e5957f3af8007
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50i3NbZM+is:bAvJCYOOvbRPDEgXrNekd7l94i3p+kug

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023225-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4500	demka.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 4500	684	2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe	90
PID 684 wrote to memory of 4500	684	2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe	90
PID 684 wrote to memory of 4500	684	2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_bd2170004a20415c8ec3d177780f20f9_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:684
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\demka.exe

Filesize
41KB

MD5
5b7ab265bdc76c34de3e654b9a3090c6

SHA1
86d06862901cdee2dd2554339020ac53768eb291

SHA256
1a3c15b42320903af190cad0f0ecdc67b02d37c9ad9d88e98fe382116e571420

SHA512
128d4579a7404d2bc585462abae3b681a8b3ebf4011c80c8108362f41e3aa66cbc648e37a55241c304287738b67cdf440dc3f45fc83571c431dff96d895c6830

Download Submit
memory/684-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/684-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/684-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4500-25-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download