3438ef43f70cc375686083df31bf920746300cd29db1aff63e4b1c47fd61525c

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2024, 14:39

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General

Target

2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe
Size

35KB
MD5

7cc4e57040fc6aba71c910b09dbd5a91
SHA1

cb600d721f44a81f17cbb1dd61e547cb5f9c1c5f
SHA256

3438ef43f70cc375686083df31bf920746300cd29db1aff63e4b1c47fd61525c
SHA512

aec4ac83d3be7246a21aff404ff8e92290db458cf346ee2dfb1712e41824ab2cbf315978ffbff88ca5bf3384f35468c425ec2e9b7abdf4c313f901c7f2725bde
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmUS:bxNrC7kYo1Fxf2rYPLS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022f51-12.dat	CryptoLocker_rule2

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4220	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 2792 wrote to memory of 4220	2792	2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe	82
PID 2792 wrote to memory of 4220	2792	2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe	82
PID 2792 wrote to memory of 4220	2792	2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_7cc4e57040fc6aba71c910b09dbd5a91_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:4220

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
35KB

MD5
e479d1bc3c5445a4936c7bb5015729f3

SHA1
bd127a9e5c2a727342653e23531a5469a1eb37a7

SHA256
0b88ef88e64ded18efca577df03d8379b3567a23a01d85445819ca5d0b0ac678

SHA512
6798ec280a0b9ad5dffbdf0e7ab8e39edcd63e8841d7ed1e0ebdfae059cb7bee3cc0e299122c624e36e2c92ab9d7faad7fc51ec87afd74d60c7675aa7ea197a1

Download Submit
memory/2792-0-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/2792-8-0x0000000002150000-0x0000000002156000-memory.dmp

Filesize
24KB

Download
memory/2792-1-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/4220-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4220-23-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download