463f62042c47224f4ca0176c4e47a904c335c21e2908969288f52a2ce9b3ac46

Analysis

max time kernel
129s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 03:35

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General

Target

2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe
Size

34KB
MD5

671b72abee6d592d7414f2595a099be7
SHA1

0bc321321d64c02c991ed9e10ff055213cfc8a13
SHA256

463f62042c47224f4ca0176c4e47a904c335c21e2908969288f52a2ce9b3ac46
SHA512

1fed03db6f7ff2178dfa4b32612ac903427999de9ad32b6ae595d1570297e9670253ada7fa76961baa57966defe84a6af0054efeea2ee39ef171acec3fdfad2b
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5Md:bxNrC7kYo1Fxf2rYAd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b5e-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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4924	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 1528 wrote to memory of 4924	1528	2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe	84
PID 1528 wrote to memory of 4924	1528	2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe	84
PID 1528 wrote to memory of 4924	1528	2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-07_671b72abee6d592d7414f2595a099be7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1528
- 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:4924

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
9a95a02ba7a0ba78b03ae346cd9ebbc3

SHA1
f7cf9fa6f9f0c118e2d3a89ff3c51bdb97eebd81

SHA256
9d53e413be287255ca3f7880258132610639b64a62c95df48f05770135b4fc75

SHA512
c86bd42a12f2d854152f304fadd6b18ca31327c22fee8af4ddabf1077383c0ff6d04be0e7df7f29b9454e45a8ea4cf92145e0a9c49aca62192b819608020c0e2

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1528-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1528-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1528-8-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4924-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4924-17-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download