2aeb2212966af127ea36c8c7381493fb89725ae90d8d69a0f016ed97c927e7a5

Analysis

max time kernel
142s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
17-02-2024 07:55

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General

Target

2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe
Size

74KB
MD5

db2e85404fec0cd1cf220b37c9790158
SHA1

01cc71ee55884e31cca7db51cc169a60e6e322c1
SHA256

2aeb2212966af127ea36c8c7381493fb89725ae90d8d69a0f016ed97c927e7a5
SHA512

fbe9283e5c5567d25c1e1bedd54629787b3e6f8513e9e324f6c0d5e0447d7885192c93630b3405f128816c4bb0087f40a7d083a012a3654262450bdff9c202fb
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1co:X6a+SOtEvwDpjBZYvQd2L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023204-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023204-12.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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4172	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 5012 wrote to memory of 4172	5012	2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe	84
PID 5012 wrote to memory of 4172	5012	2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe	84
PID 5012 wrote to memory of 4172	5012	2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_db2e85404fec0cd1cf220b37c9790158_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4172

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
74KB

MD5
98bb3f1615a87f8b3b46272108158012

SHA1
b327c613c358e116f356a26712c109de70359f46

SHA256
4252d18546fe2844574c342fccc44703113f123a42027ae86cd3c03ce724d535

SHA512
076a9cf5dd28af15add5e76ed029dd7f641580b77190fb520c0bf289bdb9b5d991336ff7388730fbaa215164c1a92f529e930e8016c03f9ffa72d6fa88bb9a05

Download Submit
memory/4172-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4172-22-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5012-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/5012-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/5012-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download