86d5211ed83336835d09642ced31a5f85632e98eb38bd60f24815daa9d0e8785

Analysis

max time kernel
142s
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
18/04/2024, 05:46

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General

Target

2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe
Size

58KB
MD5

d9ca103584da81be05b7995200d72aa1
SHA1

1d2aab4e70c66d76f08469bc0e71e30e9c604cf8
SHA256

86d5211ed83336835d09642ced31a5f85632e98eb38bd60f24815daa9d0e8785
SHA512

1777a208090622b1977f42a63eda1eaa560883ce4ea8d95ef1aaaf3ea3d0a3c14dc9f9ba36875bd4e8a79017b3716269364a31663065ad16f786e4f3c2c1a78b
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBccD2RuoNmuBLlH9xo:X6a+SOtEvwDpjBrOI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023249-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023249-12.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	2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3408	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 4404 wrote to memory of 3408	4404	2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe	90
PID 4404 wrote to memory of 3408	4404	2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe	90
PID 4404 wrote to memory of 3408	4404	2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-18_d9ca103584da81be05b7995200d72aa1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4404
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3408

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=3940 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
1⤵
PID:1836

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
58KB

MD5
adcda2ec625fc4d1438c07298661dc97

SHA1
17ee7a667da8c8456c6c97538dbcf540594c525e

SHA256
ee522c52c4ade57bdcec2f9cf96dc4ee97a0f41276f06041c79f26ddcd713be5

SHA512
a124d37342eea8dff283ab81abd6ea7e07bd0384daa9cc9641cb00b2c51eba95ae3992d4241cb88f37ec275bb153129e8830eb62567f354857b32ed580d22af6

Download Submit
memory/3408-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3408-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4404-0-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4404-1-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4404-2-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download