0cc307570b8f42ff05ec78a35c7b3239da4921385c61a7e47f1b3ec3ab791106

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 04:51

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General

Target

2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe
Size

49KB
MD5

f8ef4baf244e2bbb603a6551ec7474d4
SHA1

62550d1d1d111ece9d574dcbd5ac212c9503a719
SHA256

0cc307570b8f42ff05ec78a35c7b3239da4921385c61a7e47f1b3ec3ab791106
SHA512

5ba873dbbd00c73727091efa050f758a3745eb5aaad0cddf394574f660d6dc7ec98b586243168ca5f05d8e522b63331c30edf1209d98b563286eda18c8e7a623
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfj:X6QFElP6n+gJBMOtEvwDpjBtEdXfj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022fa8-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0006000000022fa8-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1076	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 804 wrote to memory of 1076	804	2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe	83
PID 804 wrote to memory of 1076	804	2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe	83
PID 804 wrote to memory of 1076	804	2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_f8ef4baf244e2bbb603a6551ec7474d4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1076

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
49KB

MD5
20ae71c7ae1e4c695ec0bc99c46aa46c

SHA1
ada311c8693da5ba2b6bbeac8adef3d1a4473482

SHA256
14be72d61e7118341968abe840839585facfd1b65c0df320b0417e84d4c2ed45

SHA512
4c6f86e2e9e4ea2bf94af8d80cc2741331babf96c7d39a0dd24767f3aced4d1e3b87a86fb66af78a6852bb3bb54d1da818905bc252bb9660c1ea63de75a5e5ca

Download Submit
memory/804-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/804-1-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/804-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1076-17-0x0000000001F50000-0x0000000001F56000-memory.dmp

Filesize
24KB

Download
memory/1076-18-0x0000000001F70000-0x0000000001F76000-memory.dmp

Filesize
24KB

Download