99c709a3f135afc25e5aa0c0fe60b94bbb70a053a03a2f2d2c7e16f80dff6664

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
22-04-2024 09:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe
Size

33KB
MD5

e23ad0515bd755cb29868b0087aba2db
SHA1

26c8c4d7cc6dfff6b9db1361be2aeb16fe135058
SHA256

99c709a3f135afc25e5aa0c0fe60b94bbb70a053a03a2f2d2c7e16f80dff6664
SHA512

86a6e0988b231ba6aa5558f3fa9742481cda6ad580888c14bd34481169c886bb4df892d2a2e9bda76f341f41303d669ef3dae239323957ec99519b782388ce17
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5M:bxNrC7kYo1Fxf2rYg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e97c-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-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3876	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 3484 wrote to memory of 3876	3484	2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe	86
PID 3484 wrote to memory of 3876	3484	2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe	86
PID 3484 wrote to memory of 3876	3484	2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-22_e23ad0515bd755cb29868b0087aba2db_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3484
- 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:3876

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pissa.exe

Filesize
34KB

MD5
c0625cba956e01200e4d95879cbd5688

SHA1
d5f3da7b34fffda59aa5243e183b60c88fad4237

SHA256
4fd9dceff43a6a9a3fb02fd93d30fbc39b7316d5e2381b26da6d04380d59e2f7

SHA512
1ef95835a816ec922f54c04f0a660ccd404d45460ae2baddee6c1065dbe9e0f5872395b6ce496295af7b33467e52451e881399a0deff3e7d3e780868a7c16e73

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3484-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3484-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/3484-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3876-18-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/3876-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download