59c2d5f2b03521dd5ca546a733fc94cb1ba26468a21a9948b8b03d9749182a1d

Analysis

max time kernel
150s
max time network
153s
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 01:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe
Size

37KB
MD5

f5e4c97dea465e054e8cbb939fe96338
SHA1

2142f20422b935d6136d19b2d454526a7bc77fe5
SHA256

59c2d5f2b03521dd5ca546a733fc94cb1ba26468a21a9948b8b03d9749182a1d
SHA512

56c87c60569915bf7db9d15952d4c38fe9bec0fb2406b07b7bbc5808b288cce7f4a291546488d5f94aa193e63801ebed18508e589bb3d43910f75ec154a6dfe7
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfz+:bgX4zYcgTEu6QOaryfjqDDw3sCu5mz+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000023217-12.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-1-5-21-3054445511-921769590-4013668107-1000\Control Panel\International\Geo\Nation	2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1536	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 3296 wrote to memory of 1536	3296	2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe	88
PID 3296 wrote to memory of 1536	3296	2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe	88
PID 3296 wrote to memory of 1536	3296	2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_f5e4c97dea465e054e8cbb939fe96338_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3296
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1536

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
38KB

MD5
e080396a09ff33d9afecb60f959693a1

SHA1
ec6ea909d221a11705a94a18b9613e181cb3c371

SHA256
996afa5ec12640c2e40ddacd61092bd330188f634329ca12c985376f840a05dd

SHA512
262d057c56e5f4e0fbb5e0372b2639f50021756f7e0ba328ac54f983b7909dffb21b032fdc21e96f55e20492c93b6beece1ba6432fcc2c47d2dc1f5fdb866f63

Download Submit
memory/1536-17-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/1536-23-0x0000000001F90000-0x0000000001F96000-memory.dmp

Filesize
24KB

Download
memory/3296-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3296-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3296-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download