f7b62d160827281ac84f5e5c75ec377a352d48a7bbd9ca9c4bd44e8595c3b22f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2024, 03:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe
Size

41KB
MD5

cdfcf68d64c019709076d0e9ccda99c8
SHA1

26303e66e88130a9e5cc231488cfd25df6cbef38
SHA256

f7b62d160827281ac84f5e5c75ec377a352d48a7bbd9ca9c4bd44e8595c3b22f
SHA512

cec20524ff1f19f2c43d23ea7db84a9fbe17f021d370fbbe18230c4ab182a545977d353f78a08448e911fde4ae1514be40902ba5eabd155077b697bf2eebaf7f
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzRv:bxNrC7kYo1Fxf3s05rwxbFS9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023260-12.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-1-5-21-910440534-423636034-2318342392-1000\Control Panel\International\Geo\Nation	2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1760	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 3696 wrote to memory of 1760	3696	2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe	87
PID 3696 wrote to memory of 1760	3696	2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe	87
PID 3696 wrote to memory of 1760	3696	2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3696
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:1760

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
41KB

MD5
97f0e7ab4041621ae38c2eabf5551223

SHA1
976fa1ce8099fc51d76e3bb6e70aefa9778b18c4

SHA256
ca62420a41db1edbd19ac9de1b85ab086d14556013f099c9e338e8db2478734e

SHA512
af7f346ce238256d81e5ae9267a57ba23a19f7177655b48db9c54d199f356ff47c59b0654a8ae03a8a7369c96b9ac376543d49f7335f7adef602ee06298f6a74

Download Submit
memory/1760-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1760-23-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download
memory/3696-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3696-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3696-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download