7890e2eb9882de372d872b61946bb80e7ebfa78e69178b8f81b0fdc78df05887

Analysis

max time kernel
150s
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
22/04/2024, 08:02

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General

Target

2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe
Size

52KB
MD5

90a46d06ba1d029f110030ee752f5b90
SHA1

b426595b6aa76ae0ff8c1b4af57b612bf021fa99
SHA256

7890e2eb9882de372d872b61946bb80e7ebfa78e69178b8f81b0fdc78df05887
SHA512

a79aa5f5e2f2005cee312fbe4ecf13ad2dbe4de00e873d9ba19f8ce3c784def1e7e03abf7a6c05fdcbed334aedbd56ad8f4b73fbd61f784b4b369eb934e7a437
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CS4Gjj:bgGYcA/53GAA6y37Q6dI+d5QG3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000001ea83-12.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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4832	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 2260 wrote to memory of 4832	2260	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	91
PID 2260 wrote to memory of 4832	2260	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	91
PID 2260 wrote to memory of 4832	2260	2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_90a46d06ba1d029f110030ee752f5b90_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4832

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=1324 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:4584

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

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Downloads

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

Filesize
52KB

MD5
9c55d20a52b74899651a9d2d5d8e85da

SHA1
8fc7298d2ca53d9548d8b7addd0c96c2a30d7e02

SHA256
2c59ccf76b1981ab7cb82baf727c17f76d1a3ece9d452bd98d4fa8bfa8577f83

SHA512
1a3eb13b52b04a43db391b4a41af28970b8fc189ab2c6ee48d62dde75f75995f7d8b72335b89dcd4fbe2c841c980be6813e661cd2a919913f7be21e4dfaa1bcb

Download Submit
memory/2260-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2260-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2260-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4832-17-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4832-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download