c7496c0bb873e8801e3e7e2c298fd062b69930c6ea1f98addf31d8b27a242aad

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 22:41

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General

Target

2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe
Size

33KB
MD5

4ea0c6a2615dcd789afee1cf9569477a
SHA1

5b1ec1ba016a66064bec0644d5c7f91bc885c04f
SHA256

c7496c0bb873e8801e3e7e2c298fd062b69930c6ea1f98addf31d8b27a242aad
SHA512

27ba70fde517c8d3ee7c69c0676b53335a91e63aa4eee40a39eeb49897940585eacb34e30622eae96863a4eba0a0463ccb8fba2dd55b37353ecd234baaa1e32b
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8awh3:bgX4zYcgTEu6QOaryfjqDDw3sCawB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000231e3-12.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1756	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 2900 wrote to memory of 1756	2900	2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe	84
PID 2900 wrote to memory of 1756	2900	2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe	84
PID 2900 wrote to memory of 1756	2900	2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_4ea0c6a2615dcd789afee1cf9569477a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1756

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
33KB

MD5
2d411cdfe329fff1e8c18df8f3a3e5e3

SHA1
8dd13ec786d7483bbed014c4d96c46882f9ea835

SHA256
ea91df5ed0107cb922b4804cea9665cd57b628a3ee2be0366064f5970c81b576

SHA512
c9cc7c31cbbe9be549d4bd1cd7b1f396343ef090b47c8b72edabcbd1d234f4020cffe52657fd72977cd251e390589ec93492b6a33c16bb880113b75ddf581a05

Download Submit
memory/1756-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1756-17-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2900-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2900-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2900-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download