3958ca44d5c3950604259628653e2376a29b5250cfc0cab9c51453f80c74fd73

Analysis

max time kernel
0s
max time network
135s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2024 22:41

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General

Target

2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe
Size

33KB
MD5

4288ae8a1edd0e80c462a22b58ca1f47
SHA1

f6084d9dc7a755c0ebae8b97396cc8164fcb5b60
SHA256

3958ca44d5c3950604259628653e2376a29b5250cfc0cab9c51453f80c74fd73
SHA512

86cf8841519e0bd29dd0ee9f1198d8fc11505bf9a7aa9763213e965900f44d6c8ce70ff9c4311206a19f16088f81058702a9efa39f09465393192018f2fa06e9
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzogFzpjufAq18st8e:bAvJCYOOvbRPDEgXVFzpCYVu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e630-12.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5032	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 2888 wrote to memory of 5032	2888	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	19
PID 2888 wrote to memory of 5032	2888	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	19
PID 2888 wrote to memory of 5032	2888	2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe	19

C:\Users\Admin\AppData\Local\Temp\2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_4288ae8a1edd0e80c462a22b58ca1f47_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  PID:5032

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
33KB

MD5
aaf462882d3b6700f428b5225e2dd132

SHA1
7741b652c538fca78ecbfd84627c626ba7b822e4

SHA256
4fbaae7f3008c6b0141e39a737f81f1be1d2f8d68f40e0ac96a331bdbb3a1ce4

SHA512
f4aaa87b8feb71677a39d451f2696523c762b3d328cfa59b953e6b02fed89d81e2961ae61e703db8f77271c6ba6e14d35227dced0a446898872df4082def5e66

Download Submit
memory/2888-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/2888-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2888-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/5032-25-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download