dff847b978992822dd53211de648f101943c00e8704f80bb32193231561dd97c

Analysis

max time kernel
152s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 17:41

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General

Target

2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe
Size

35KB
MD5

5144aa7d2658bbbf749a3b7f237cea60
SHA1

ea672c69cc635ed58d67e2b04598b3cf27eca697
SHA256

dff847b978992822dd53211de648f101943c00e8704f80bb32193231561dd97c
SHA512

bf6efa9d46368b2e503be7b5a4124e941b6bee7555ecd19f6020f63fa137b9438790bb120e9a87617678b2207963d24bb0ce04db35fede0ff5d95fb926bc69ef
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEn:bxNrC7kYo1Fxf3s06n

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023123-12.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-1-5-21-3844919115-497234255-166257750-1000\Control Panel\International\Geo\Nation	2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	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 2324 wrote to memory of 2784	2324	2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe	88
PID 2324 wrote to memory of 2784	2324	2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe	88
PID 2324 wrote to memory of 2784	2324	2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_5144aa7d2658bbbf749a3b7f237cea60_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2784

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
ecd986c71b862c68bf80430ec7380775

SHA1
bd6ad1cd5c17ea560f6a5ca4e50a8545026433de

SHA256
2028ce08ed3f0969a7a45808b8a0f4cd963c811012e2df2236005da168622f86

SHA512
4d63f6207b80a0cb57993d9e2ba07f7a11a76de6a20cfdcf3ed0ea7a9534ab271efa3d36bcccaab5d12fb51adfe6b0c61873ee53bbebbadfeb30a3448e227c83

Download Submit
memory/2324-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2324-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/2324-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/2784-17-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/2784-19-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download