e521213cd65063d3152be7b18c87780dc8443b5182ee8ebe536d2761b106a650

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04-05-2024 05:43

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General

Target

2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe
Size

38KB
MD5

96b90a8b08c65fb95032e65c771e02b1
SHA1

3fdca25867f8214d120d9f0f84824e4581d7745a
SHA256

e521213cd65063d3152be7b18c87780dc8443b5182ee8ebe536d2761b106a650
SHA512

d424ed3aae02b917d4c11a5282da5bc06864c2938ea2e66009ee113927a44fccf8a648552cea4e20ad79ceec7439d5b195312f7b95c574dd86437d446805a3b5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCw0Spm:X6QFElP6n+gJQMOtEvwDpjBmzDU5d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b8b-11.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b8b-11.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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1796	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 392 wrote to memory of 1796	392	2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe	83
PID 392 wrote to memory of 1796	392	2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe	83
PID 392 wrote to memory of 1796	392	2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_96b90a8b08c65fb95032e65c771e02b1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:392
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1796

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
38KB

MD5
c849e1ab0be72eadf72a276093b52f63

SHA1
b2a63b9e6bd6fae13fe57fcc812c094a9b58b0bd

SHA256
7f8438443ee32e1d04c399a4a43ae11f3cfc696a71b0117886f2f9853b6799fe

SHA512
8bcfaf4b9e6e499b975033131901a655396d2ec185a0f44c5180213ca85ec0e6194539ae3cfb0307b5c5fdd08e12ddbdfba0ae7c8da7f367ab4375bfd0babb64

Download Submit
memory/392-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/392-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/392-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/1796-17-0x0000000002000000-0x0000000002006000-memory.dmp

Filesize
24KB

Download
memory/1796-23-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download