de166cb5d0e3aac775deda9e1470bd36300eaf28604bbc451d080aa4c9f31736

Analysis

max time kernel
142s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13-03-2024 14:45

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General

Target

2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe
Size

38KB
MD5

5092d7a5ccfcfb76f984adadd52f099b
SHA1

1d722143ddbe5c10e82e8a336dabdcc0e3bad11c
SHA256

de166cb5d0e3aac775deda9e1470bd36300eaf28604bbc451d080aa4c9f31736
SHA512

614ccd58d63225131742a5ebd7b6b472fa267cc331b7acf9a212b7756e76fd8ef24fc245b6fc33b4b695d045b01e47348332234f017c0dd07cb76ee7e6afc39f
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX2x:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c0000000226fd-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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
5112	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 4192 wrote to memory of 5112	4192	2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe	91
PID 4192 wrote to memory of 5112	4192	2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe	91
PID 4192 wrote to memory of 5112	4192	2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_5092d7a5ccfcfb76f984adadd52f099b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4192
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:5112

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
39KB

MD5
975926cf3c9af398c0183d7049b55de8

SHA1
53918510c6ac2f003138201e89a6f4cf137af51a

SHA256
1312f9bdd6bbc3ff1a469363d5196bcc4a03a593963813ded3adf3a5ee4f81b2

SHA512
ab7540c019bbddebe88a113995b30ffdaf62c8becec47cce94ec97d4d7190a29425dc5d355b3ab7afbb7fcbe1b616bb747cda77657c9a5c3a1c8e4d64ca3d4d5

Download Submit
memory/4192-0-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4192-1-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/4192-2-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/5112-17-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/5112-19-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download