5e046d682eaef7ca10798c66b1f1712f17dc1fa1e838b62ca23e8e1708385244

Analysis

max time kernel
135s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
31-05-2024 02:46

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General

Target

2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe
Size

34KB
MD5

7a0a3dd6a12ccddad55dcb1affbab7a4
SHA1

ea76be35d692ef7cf43061a60da1fc356ec77219
SHA256

5e046d682eaef7ca10798c66b1f1712f17dc1fa1e838b62ca23e8e1708385244
SHA512

fcbc5a260239d96c5e4a0c49ed1c9bb60e810bb5b9c05c1aadcc949d1fb4ee906a61c520f52e12f908d113b67e5cc0c2a76c21cea7d86b47dfcaf2d2cca2c679
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmu:bxNrC7kYo1Fxf2rYP/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023424-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4588	pissa.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 4284 wrote to memory of 4588	4284	2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe	83
PID 4284 wrote to memory of 4588	4284	2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe	83
PID 4284 wrote to memory of 4588	4284	2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_7a0a3dd6a12ccddad55dcb1affbab7a4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4284
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4588

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\pissa.exe

Filesize
34KB

MD5
6c1d1c67e1b1e2b20c238c87f8936499

SHA1
eb048936705a289faa405f5f88c409b29c9609ad

SHA256
508273ce699c3a9ca0e1f1d079d779090ed68320a0fde144e09e517ddf0a4587

SHA512
542bb201e2810feb36e8a976118ee3c10fadd25972d475f08dba4d4b452574e45f300226a19eee54e50ddda3eccbe51516796bf7b8b85667dccea61255dc2972

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/4284-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4284-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4284-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4588-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4588-23-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download