f24ed1ef77f71fdc857911ced092bfde801b33d963f253d1a09c93c3d0907992

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/05/2024, 03:27

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General

Target

2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe
Size

96KB
MD5

463640dd22f95dbbf8847233914b807d
SHA1

d9dd78de0cafa793d3e5e3f52aa3ef4c388422d4
SHA256

f24ed1ef77f71fdc857911ced092bfde801b33d963f253d1a09c93c3d0907992
SHA512

f253ebc9267f7867373464ee0ebca8fc650682639a0585796269c699fea37521059d5813394fa5a8ae80a3ec0c4c89f52773a5a2716e8036942a78148c773595
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwMgJ:V6a+pOtEvwDpjtzl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023219-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023219-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4452	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 412 wrote to memory of 4452	412	2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe	90
PID 412 wrote to memory of 4452	412	2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe	90
PID 412 wrote to memory of 4452	412	2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_463640dd22f95dbbf8847233914b807d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:412
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4452

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4080 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
1⤵
PID:2108

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
96KB

MD5
670025c3d3a9993f2e5a3cedfa5c8b39

SHA1
d90249856a79791e9602bba9df203fb71f4acf4a

SHA256
895a004c5a9f312775ebbc5ecc6815aacaab23ad986ad4d3394e2294e09835d2

SHA512
cccd07eb896bafe988fa4ac87f006c0eecafabbbb99689d6c968d1ca5beb4d66e549b066837ee358f5e7baa0c9a741ba295efc5bb43b0e8e96363f83288606a0

Download Submit
memory/412-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/412-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/412-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/4452-17-0x0000000002080000-0x0000000002086000-memory.dmp

Filesize
24KB

Download
memory/4452-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download