fe879f98037fc6dbeab3aa1d1522b2b2a353c14a2d482ca2c5893fac43b5cefe

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
02-02-2024 19:24

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General

Target

2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe
Size

100KB
MD5

19cf8ab11047b7e924bfcd7133b2ffc3
SHA1

6f377ae95c802b4dca661ef30c6e9b8be3fad502
SHA256

fe879f98037fc6dbeab3aa1d1522b2b2a353c14a2d482ca2c5893fac43b5cefe
SHA512

35bc664020b60943e2835d202be1de8952c9272c369ae4886f266c8cb2dc84fcab533a569873ca89e65782eedff638d62c1b52174cd2fdcb412a3205d144d2ab
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNuj2GQi8AoP:V6a+pOtEvwDpjtzT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002314e-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c00000002314e-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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4996	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 3536 wrote to memory of 4996	3536	2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe	85
PID 3536 wrote to memory of 4996	3536	2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe	85
PID 3536 wrote to memory of 4996	3536	2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_19cf8ab11047b7e924bfcd7133b2ffc3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3536
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4996

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
100KB

MD5
3ceddce782d91c908d5bbc8368b43222

SHA1
6ff2898b821acdbc2b70d12a78b76db292b41526

SHA256
db1c643e1d2e05b3c0fa4699a756a61ffa5e97576d09de35a0709dfd2d8e3f01

SHA512
a9cca947c937d3619bb368f42616c53d42e0217c3c0d571d3960976d4f543c01c3df6258c8899d180ab34547ac1cb48a1340b9a45ef46b04645907486b60f36d

Download Submit
memory/3536-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3536-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/3536-2-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/4996-17-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4996-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download