a2044f2ebe0fd166f9d4edc416fec5e286829489fc36de18fe28f2041b4442fe

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08-03-2024 06:38

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General

Target

2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe
Size

48KB
MD5

ad164912b8b7016a58e08bb5b41bfb83
SHA1

5a47ad150bdc2702789e6349b35c4533e2ee1a8d
SHA256

a2044f2ebe0fd166f9d4edc416fec5e286829489fc36de18fe28f2041b4442fe
SHA512

48f75dbac89696532e51fafc4a8e0660c1f48238e10211bd76a4f1872d96acb91033395ffaa68c5cffd686724cf11ab7c6b9ce74192c21c796340665ee29bd61
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0B9B:X6QFElP6n+gJQMOtEvwDpjBDK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320a-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320a-12.dat	CryptoLocker_set1

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	2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1200	asih.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 1072 wrote to memory of 1200	1072	2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe	93
PID 1072 wrote to memory of 1200	1072	2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe	93
PID 1072 wrote to memory of 1200	1072	2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_ad164912b8b7016a58e08bb5b41bfb83_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1200

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\asih.exe

Filesize
48KB

MD5
384e1d3d3df285bb2e9589e2db06118e

SHA1
06c1e7a094eb8dddcf8ca802bfe92292de152c52

SHA256
ee77dd1c496ba77cf6f87f441870ebd6dddec08ba2756d21950e634ef1c252c5

SHA512
533435746ac8919676f155b85dc91be3623059eb4bf33265fcfdffd22a6b016ae2f5a8d2d6c50261423ecbd6a8f4bb872a758b749001f20f146428dcd792a06b

Download Submit
memory/1072-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1072-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/1072-2-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/1200-17-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/1200-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download