4fe62c05d3c4c21a05b2baac8fda7463922e86e7625a723666a08983bcd6d5e5

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 15:50

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General

Target

2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe
Size

385KB
MD5

ccc61bf1b177bbaf3d33881199d087c7
SHA1

56aeda7cd63260aa4956ee9f49c0a0d77a58e550
SHA256

4fe62c05d3c4c21a05b2baac8fda7463922e86e7625a723666a08983bcd6d5e5
SHA512

9000ae9813be08cd8f3f966e68c30d507df9183d87d7e44d73c7e58ed223a9cb4f8ac9749a935c371e6cc8fbddba26818ab5672200dceaefc27c9fff7fb35381
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXo:nnOflT/ZFIjBz3xjTxynGUOUhXo

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b00000001e597-12.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-1-5-21-1712835645-2080934712-2142796781-1000\Control Panel\International\Geo\Nation	2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4252	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 1576 wrote to memory of 4252	1576	2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe	88
PID 1576 wrote to memory of 4252	1576	2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe	88
PID 1576 wrote to memory of 4252	1576	2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_ccc61bf1b177bbaf3d33881199d087c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4252

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
385KB

MD5
6a2351ad1d35c8919b5b1eae4c5b9456

SHA1
12b8c0e51d96e158a5935eaaeceffb74cc532d56

SHA256
1d19781b3e23d43ff44faf4229913ac58a71bf614e99f84a318d37229d5cb877

SHA512
8cb93b6d9fad5ba331ec5c53f254f178eb6064ac7760ecd2703202f286b308d8a7ad6b362dd5b6d387731f4fdeb9bcfaa37f977851e284c262f5d888a96be742

Download Submit
memory/1576-0-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1576-1-0x0000000002E90000-0x0000000002E96000-memory.dmp

Filesize
24KB

Download
memory/1576-2-0x0000000003140000-0x0000000003146000-memory.dmp

Filesize
24KB

Download