bf74708843e15c88a21c089c19d3fb94330cf6aa309a7ddcb425027d0e314850

Analysis

max time kernel
153s
max time network
167s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 19:47

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General

Target

2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe
Size

43KB
MD5

c0aea71180786b377a6ec463b42bc047
SHA1

d0842dcef86e424f5c71fc8e7c1766bbfedac11e
SHA256

bf74708843e15c88a21c089c19d3fb94330cf6aa309a7ddcb425027d0e314850
SHA512

0369ad013b6b4865d6cc6c3ca28c916d46ad65cd81c55921cf867a79ba5c994a1243cf2bf12d0f38a59e8dab774bc6c6c70208b1e9ab6f8e8c9dbab7d765d659
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNSDj:bgGYcA/53GADw8Cl/l

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320d-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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3532	hasfj.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 1724 wrote to memory of 3532	1724	2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe	89
PID 1724 wrote to memory of 3532	1724	2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe	89
PID 1724 wrote to memory of 3532	1724	2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_c0aea71180786b377a6ec463b42bc047_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3532

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\hasfj.exe

Filesize
43KB

MD5
d762483545e2352a625689a286d69fa1

SHA1
dffd1c03567d45bcb82a38fcf7f1803e4fac0f77

SHA256
d4981c3a074b98c600816321f7ec57c4006f161670a619008253ba5e80ccaa43

SHA512
86438bff988b1c19039c78dc98c62c961fdbf87717dd0176d30c4b4065211d41434b992f454a617621a101e2e1f6f01f2ba26deb54b7e7b63554eb7730185467

Download Submit
memory/1724-0-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1724-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/1724-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3532-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/3532-20-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download