14cc090807bed4e2bbbbb6071f0cfd7a479e90c158097c640e47a2a4b6521ec4

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
20/06/2024, 04:27

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General

Target

2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe
Size

40KB
MD5

793eb43d80ecdb769851dbe7aacaaaa6
SHA1

2bbea54855ecb2311f78602d837022e224c4a437
SHA256

14cc090807bed4e2bbbbb6071f0cfd7a479e90c158097c640e47a2a4b6521ec4
SHA512

c96db64577cc7d18eb0c754be679a891864273c4e725be69259170e67177692d0fa4b72dc5e1d569ec8572e6cf9e80f6211d7b4df216db5b8a1834d97a72d735
SSDEEP

384:bM7Q0pjC4GybxMv01d3AcASBQMf6i/zzzcYgUPSzn1KkZCb9q8IujdxNX6vDc:b/yC4GyNM01GuQMNXw2PSj1Pqq8BV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012280-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3004	retln.exe

Loads dropped DLL 1 IoCs

pid	Process
1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_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
1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe
3004	retln.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 3004	1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe	28
PID 1612 wrote to memory of 3004	1612	2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-20_793eb43d80ecdb769851dbe7aacaaaa6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1612
- 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:3004

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
40KB

MD5
b0e47b8256698f28b6ffd0aee2be9c65

SHA1
703f97d4a9be723ffb856db29341007c1d8d0c19

SHA256
139fdfc1c2ca098201e573dd2ef837250121c9481ed926faa38828682dd91210

SHA512
b625f871968009eb05e612db3fddb6ad8902912b76b96939e69e40811dc37292f83910b5d53943aa0fb254ceefdd1e1769aca8003afcb18d99f1783b7581dc89

Download Submit
memory/1612-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1612-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1612-8-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/3004-23-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download