d453290e04e27bd9f44c0196e8d41a8e3d4d64b3b8c61db34ea143e9e057a1a6

Analysis

max time kernel
149s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 14:29

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General

Target

2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe
Size

43KB
MD5

323acda3834385c7967485aaccd9c848
SHA1

be0bf6e703100344559dfe959e588423ec42631b
SHA256

d453290e04e27bd9f44c0196e8d41a8e3d4d64b3b8c61db34ea143e9e057a1a6
SHA512

390fd9905520b00abbed397b5044c51a95f6831bfc5d3c349c2d0c3854083eda0e2ff0cc7b1cc621a142a644edb8315eded97fed888c63a5cb89c5366634f63e
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzz2U:V6QFElP6n+gMQMOtEvwDpjyaYaFAHU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001fc40-12.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-1-5-21-3316742141-2240921845-2885234760-1000\Control Panel\International\Geo\Nation	2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4152	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 5112 wrote to memory of 4152	5112	2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe	88
PID 5112 wrote to memory of 4152	5112	2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe	88
PID 5112 wrote to memory of 4152	5112	2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_323acda3834385c7967485aaccd9c848_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4152

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
43KB

MD5
00dd88d74875a8c6777f3e7e58de3fad

SHA1
55f5cb03f37b3c1627e6f50403fb257e93dac59b

SHA256
448caf46edcc355a653621d676b7b6c82ecf3ba4f18e3898f73435b8578b39f5

SHA512
818aa0c7d6d5b8b9108176579ad04c3e891ce5cf245950f6b244c22bb47cc84cf1a939d76541121727ef4fe0cc92d05910f39fd1c22ab76ceeaa4c81cabf52ff

Download Submit
memory/4152-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4152-18-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/5112-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5112-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/5112-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download