0f5892fb4cc972e2ee2efe957d9655d0153dcc50e15b1c7b2fc973de87d959ee

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 03:34

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General

Target

2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe
Size

54KB
MD5

574fc1767bc6c2e2e64d0281776f485e
SHA1

050544a2391c5b52245910cb2244acfece46459c
SHA256

0f5892fb4cc972e2ee2efe957d9655d0153dcc50e15b1c7b2fc973de87d959ee
SHA512

ce0b8698c6f50ddcf3aa1598e9897eecf8a76ac496d8027d78f93684e2b574ec82348edeae022f632bc528482aaf10deb4bba8b269568188ec4737ff8144fd13
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/iVTab3GRuv3VylSV/Cdvl:79mqyNhQMOtEvwDpjBPY7xv3g8el

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_rule2
behavioral1/memory/2848-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2556-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2848-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_set1
behavioral1/memory/2848-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2556-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2556	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2848	2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2848 wrote to memory of 2556	2848	2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe	28
PID 2848 wrote to memory of 2556	2848	2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_574fc1767bc6c2e2e64d0281776f485e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2848
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
54KB

MD5
64536e34ff179be0aa4be7236b5228d9

SHA1
60cca059cbfd896c6c33ada4f99e6591da132ae9

SHA256
9f15c6042157dc949ef76d34d56781b349afa38b762aa6155682c94e805cb735

SHA512
6cabc34f45dd2082120a22845fde3c5f195b96d63e229a1bf381ce9aaa09b5e02ff88601f5e59b523bb5435f94a100216a1ef9aa0028c279269ccb256be676f9

Download Submit
memory/2556-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2556-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2556-21-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2848-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2848-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2848-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2848-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2848-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2848-16-0x0000000002BC0000-0x0000000002BCF000-memory.dmp

Filesize
60KB

Download