e1808c4788148bd920b4d4681382b4fa870a3812e64f5964c1d85a10e0a390f1

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2024 07:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe
Size

33KB
MD5

bb38de82ab77a4287d7a5a62979b27e5
SHA1

f1902a140926d78e71827b5a418ad3ff7abd8061
SHA256

e1808c4788148bd920b4d4681382b4fa870a3812e64f5964c1d85a10e0a390f1
SHA512

8da8f639bac4b987ce10c0e61f1eb13f42304da354b684560bb16b13c33a87ee3dc44376b5bddc54d13f7aa7a0a3bc085d49e4914c6e52edf4d8ce5e39eb9ae0
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+Bn:bAvJCYOOvbRPDEgXRc+BAILwn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	demka.exe

Executes dropped EXE 1 IoCs

pid	Process
4792	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 444 wrote to memory of 4792	444	2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe	88
PID 444 wrote to memory of 4792	444	2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe	88
PID 444 wrote to memory of 4792	444	2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_bb38de82ab77a4287d7a5a62979b27e5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:444
- 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:4792

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

Loading Replay Monitor...

Downloads

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

Filesize
33KB

MD5
ae55f83f3894cdad3e2f7251f4b72c4f

SHA1
c5e2461b118993e96029096dda8affdb8ba9c455

SHA256
2fbc07160b265b3e59b1682de2feddf00cfcd955c654d3f1dd229b1bdb244deb

SHA512
389c6033b8c63b50311e17738686471464e023e2df986c9cdaa80a783c5b92b171fbf4979695e3649fc3b0a6e28d504a02dfafd4f26b3f75dad8d245d9785de2

Download Submit
memory/444-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/444-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/444-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4792-22-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download