d6711d8694c911730ffbd0e43ce7e8ad16de2736c32f164c89e27e8e16e9c9e5

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
29-04-2024 04:58

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General

Target

2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe
Size

34KB
MD5

727eeb85c7474995c05673e5ffbf3dae
SHA1

0b53de8ef3bbe64890e553d208c27802cd76ef2a
SHA256

d6711d8694c911730ffbd0e43ce7e8ad16de2736c32f164c89e27e8e16e9c9e5
SHA512

1487e92b3a19c7d263f3917edca6fd17ea9d4d06f33355602dc2602b36b96b2e636ac070d1c74ac53a9262f24317de4be4f7eb0885e0fa5c5405b0f5b12ba94a
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cuM9gxrOn:bAvJCYOOvbRPDEgXRcuM9gxin

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b46-12.dat	CryptoLocker_rule2

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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	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 3380 wrote to memory of 4312	3380	2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe	84
PID 3380 wrote to memory of 4312	3380	2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe	84
PID 3380 wrote to memory of 4312	3380	2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-29_727eeb85c7474995c05673e5ffbf3dae_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:4312

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
35KB

MD5
dfd056354ef3a1d69e8cecdb9bba5ca4

SHA1
351e93150f9046f27858fab78f3154072823470f

SHA256
023de37c046ee6122ba5da83062d7f219c107cbe6ac5add6a64ead7047807683

SHA512
64cb5f4ffceeda308b4496a59c75ef980cf45388b2f388bc85bdf7acc36f2845bf3ce6374c0911c2c38f7beda451eca99f8c5fe7fe1f47d8cb0614fd73bb4339

Download Submit
memory/3380-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3380-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3380-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4312-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download