656fb11dbe58e4b6609e8dbea5f48396411a722aaa42e8f0923cd5855967c31e

Analysis

max time kernel
144s
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
28/02/2024, 18:41

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General

Target

2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe
Size

52KB
MD5

c89f158b67225e012962a30d966b998d
SHA1

7a5de415a07379ace79cce3e620aebb4fab3afbf
SHA256

656fb11dbe58e4b6609e8dbea5f48396411a722aaa42e8f0923cd5855967c31e
SHA512

25dd8144ed5e97a8fd2398ac577068f8d360077ee3b65dbf51cb4e1d03a6f7b76900a22d1fb9e61c493578d8bbd39963a260451d02dd4c7faa0791e185dc6f72
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5Z:ZVxkGOtEvwDpjc/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023241-13.dat	CryptoLocker_rule2

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	2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1240	misid.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 3456 wrote to memory of 1240	3456	2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe	98
PID 3456 wrote to memory of 1240	3456	2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe	98
PID 3456 wrote to memory of 1240	3456	2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_c89f158b67225e012962a30d966b998d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1240

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=4076 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
1⤵
PID:736

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\misid.exe

Filesize
53KB

MD5
6b85261096b6b8b3b0c21cdfd7f79677

SHA1
1fdc7ab4b4f8167d75bd9f2ee15a9c09830fe7ac

SHA256
c0276e7c2f3215dd1f9281c1268af4891414cf11920a8040e4ddfa8c5c98bc46

SHA512
0611a3c625e27cfc226ae7ddea263c07d17e1895d9a439de6b606662f16f866ff77f3d16a929f7f264aa0a74f5c2827a308b878f0da0aa4913ea6adecc2acce4

Download Submit
memory/1240-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1240-21-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/1240-20-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3456-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/3456-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3456-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3456-3-0x0000000000810000-0x0000000000816000-memory.dmp

Filesize
24KB

Download
memory/3456-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download