6b0e131ca7c279f46c747a1478007f4068f7d8ae061fc9c5ec0c28b604a09fc6

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 09:53

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General

Target

2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe
Size

39KB
MD5

8db0ad0d477e361da6fac56d36da775f
SHA1

599fa37c33504a566591d6f6bbb0ff0732084670
SHA256

6b0e131ca7c279f46c747a1478007f4068f7d8ae061fc9c5ec0c28b604a09fc6
SHA512

3071a4bdc8d57626efa5a791ae9f66b19c74f24c6c7d6d8c43feac43ec7e336c2bc6ea7502b9f25546df8609742248fb330c5209ddd445ff8a353db1541c205b
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSznHzl6AJvDSuYlxu3Y:b/yC4GyNM01GuQMNXw2PSjHPbSuYld

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
636	retln.exe

Loads dropped DLL 1 IoCs

pid	Process
1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe
636	retln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 636	1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe	28
PID 1464 wrote to memory of 636	1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe	28
PID 1464 wrote to memory of 636	1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe	28
PID 1464 wrote to memory of 636	1464	2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_8db0ad0d477e361da6fac56d36da775f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Users\Admin\AppData\Local\Temp\retln.exe
  "C:\Users\Admin\AppData\Local\Temp\retln.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:636

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\retln.exe

Filesize
39KB

MD5
ab75392eb31568c7fe555c6c2e49a4e4

SHA1
eb7a311ba0fe715702ab2abe7ae64f379afb8ea8

SHA256
96a8659867e3e682b24819e6888a591c78b915af6beb7625f4f9fd51143db8ac

SHA512
b17ba316fb02b47a1408f22c0cf351397faacc5b243976176d13fbf1cbfd1382edeb8518349ee5b231a449d4a14b49603da3dda8cd6e7f3f96670288d52e2ef8

Download Submit
memory/636-17-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1464-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1464-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1464-8-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download