e08ea1b77bd974f07d57446531f28167eb938a66c16c83e92af9c8b512e5b213

Analysis

max time kernel
133s
max time network
127s
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 02:51

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General

Target

2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe
Size

34KB
MD5

92cda573223b3e01d8a862ae8f9b85eb
SHA1

3ebdd369324d4a7f95d0cbb4e887e0157b21d21e
SHA256

e08ea1b77bd974f07d57446531f28167eb938a66c16c83e92af9c8b512e5b213
SHA512

7c645f0af744b9547cb33882d67f40fe54b9f05bf681995114f1e509e5bff0339da7bfe870345f60e6edea7d3d7fe94f66de253887e4635bcc08ac45a80099e3
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmUk:bxNrC7kYo1Fxf2rYPLk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000600000002326f-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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
912	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 3640 wrote to memory of 912	3640	2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe	83
PID 3640 wrote to memory of 912	3640	2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe	83
PID 3640 wrote to memory of 912	3640	2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_92cda573223b3e01d8a862ae8f9b85eb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3640
- 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:912

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
28d3bc9cd4b0b7b57deeb7c190b79971

SHA1
b65ac2b4459776d3edea6752d29a6f2fd5fd2ffe

SHA256
a91e545b0c94d83d57b3aeb644c483ffb9a73ee3e6675bcb18698da1a093a5bd

SHA512
9186596a077c3e6c94673f1173f7d16cfb4ea5d783694299413bc76dc29a59a80baa9f02a75d10bec18d28e7cb5df09a6d24a62ff779e0cf15f1bc8c8eda2400

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/912-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/912-23-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3640-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3640-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3640-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download