7895b929b57ffebd84cea947eccf852fd71488898328f93aa053a66ca3e57570

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 16:40

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General

Target

2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe
Size

27KB
MD5

882381d2ce2599842c0a8f0ee84be0bb
SHA1

b0efdbb6f3c747a5cf0e53938905172a1e47032e
SHA256

7895b929b57ffebd84cea947eccf852fd71488898328f93aa053a66ca3e57570
SHA512

29997173cb419c2f601d6a9760c6edc0b0af1f5f871f7782b9023e23feac6715f355e023326b9ccee770a2f8618e46078c3d42ec3fd4369b43b3a974d46c1001
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo+m:bAvJCYOOvbRPDEgX1m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023229-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2920	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 4644 wrote to memory of 2920	4644	2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe	84
PID 4644 wrote to memory of 2920	4644	2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe	84
PID 4644 wrote to memory of 2920	4644	2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_882381d2ce2599842c0a8f0ee84be0bb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4644
- 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:2920

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
27KB

MD5
0a7603a0c6c54dcc95e7ede422e2233e

SHA1
5e65c17ccf2f2fecf3a1373a7eed5e2741a7b0e9

SHA256
d68f25faf9c30308095e016b22981491323927dae360935741bab17f010a6977

SHA512
1880b7d557d4d731aa416c2fd17514c4caa5a8017b053a1cf1bd7cb99844a8edbc6c60f31e13ac4a143ecad00d2acca9ff009c50ee5b54fb10e34d4b54cfc6e9

Download Submit
memory/2920-22-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4644-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4644-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4644-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download