6ce91229db5ea2749df31308b95cb7ed429032f69c900c6d8643d4c672df0cb9

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
20/04/2024, 19:55

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General

Target

2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe
Size

389KB
MD5

a32f295dd7736bf55b30fcafaa92fca5
SHA1

9c06576617937ec44d2e667c71921e5230316c43
SHA256

6ce91229db5ea2749df31308b95cb7ed429032f69c900c6d8643d4c672df0cb9
SHA512

fcf75890b674b8b866e8892fc132a179fe3dee5f621342d9ceea5768242a0b48cbc840a6ba8afb973b74fcb83c8969f15d5a5bcc9d924d3011abd263fd8a155d
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXU:nnOflT/ZFIjBz3xjTxynGUOUhXU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2252	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 4412 wrote to memory of 2252	4412	2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe	87
PID 4412 wrote to memory of 2252	4412	2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe	87
PID 4412 wrote to memory of 2252	4412	2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_a32f295dd7736bf55b30fcafaa92fca5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2252

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
389KB

MD5
cbec2140961cbe5505217c355a169fe1

SHA1
917cc574e9a9c9c3f39583cc829ea005e0f0b3b5

SHA256
0242de6f865b1f3123bf58ae9fa9bc4f5c9c8d67fa867b6eefc35f46faad4004

SHA512
86ca9e452a19c8e2f22946b1a7b7643c6b5146edfcd4fab5e3d07b021e2ee8f9fc31a0c33b7809d5018263df4c2a59298ad93f35bcd185eac9ee0ffb57408e4c

Download Submit
memory/2252-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/2252-23-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/4412-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4412-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4412-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download