a41e5a35ef6195cf1d73a12490c24ef90c21d637311adfe4e972e447e4acc42c

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2024 03:26

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General

Target

2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
Size

54KB
MD5

03e02b5abc0a54627cba3ddb952d3482
SHA1

13e6a18ee0c1ce4337254bff30b7adfd03409d4d
SHA256

a41e5a35ef6195cf1d73a12490c24ef90c21d637311adfe4e972e447e4acc42c
SHA512

0434c4e5bfa2c2f72e5ce407e7cf5d75fb0c261aa32689ce72ac1f7e1e06825ee7bf117ff2718ccbf5de83e8ccbb663a7caadf58afc121e76dcc2e7cba45ca7a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Em:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7j

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023224-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023224-12.dat	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 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	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3360	hurok.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 2432 wrote to memory of 3360	2432	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	91
PID 2432 wrote to memory of 3360	2432	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	91
PID 2432 wrote to memory of 3360	2432	2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_03e02b5abc0a54627cba3ddb952d3482_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3360

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=3916 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
1⤵
PID:1616

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\hurok.exe

Filesize
55KB

MD5
1525810740602f7e4d3d3258884dfc46

SHA1
c7cee2c38ebfe501569950f69d60a67b0648283e

SHA256
2e5490591a5bee53f197ab30e70b82ddf66e7d3b66ef44d9fdcc75f1fa665ec2

SHA512
1a0f682e11415dceed30138d10d5f8004efd2adbbf7f9f4168fc7925f794b5bf69ecc89b13950cb3f8464d13dd34f9af1185f94edc4f86679c838a6e252410cb

Download Submit
memory/2432-0-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2432-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/2432-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3360-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download