712dd0396070159c9c23e4af3a58967ae3a3286c8505c6c22a174189d0a27dba

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 19:47

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General

Target

2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe
Size

49KB
MD5

34b35e2361cd0f425d5286defa3b546d
SHA1

65183b71c85706b6dc8e6aead039d2654daa6ec7
SHA256

712dd0396070159c9c23e4af3a58967ae3a3286c8505c6c22a174189d0a27dba
SHA512

4e7c317cf6c78c5daf29a7cbd675d5c2f9ba6d00622a952ecbfc0920926d44341a809291fb839435041524c9198bacfd86939ac6c9b93f97c5c6e4625f7d8eae
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkug:bgGYcA/53GAA6y37nbrg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a0000000231f0-12.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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
808	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 3088 wrote to memory of 808	3088	2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe	87
PID 3088 wrote to memory of 808	3088	2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe	87
PID 3088 wrote to memory of 808	3088	2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_34b35e2361cd0f425d5286defa3b546d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:808

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
49KB

MD5
867d8766ba772a037c6a381478c12984

SHA1
cf7269e7d9a7fbc49adbb307e362db281b467ede

SHA256
384b8774b17a489f2be12520b1f700c2e3ae8ce1ae2704c9aea22528581e85d3

SHA512
ee35ed9caf3cb170738b02239db20a06ae9a7e9345baa8d22c10e29077b76f70bfe60e7626b496cd8c264d29b53060ed8ec23e0b8bdce9a96012d72baa827361

Download Submit
memory/808-17-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/808-22-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/3088-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/3088-1-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/3088-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download