bc424e51e0f9558b5849d25c8c20c7b3544473c6e2e14e539875ae5b7357a0cd

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/04/2024, 06:01

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General

Target

2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe
Size

45KB
MD5

7053916314629c8e2ecf224d4851fdd3
SHA1

d9c41e4aa54fa798778262c9cd110db4de4e2560
SHA256

bc424e51e0f9558b5849d25c8c20c7b3544473c6e2e14e539875ae5b7357a0cd
SHA512

5e5554bcc5604c59cef5ddda1c14f151c29748083390e649fb0b49f169127eef623bef3a2f5f055bd08e40d42538c768bf55b32e16ed2363ebe0675b66792a23
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPo5:P6QFElP6k+MRQMOtEvwDpjBQpVXz5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2184-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012331-11.dat	CryptoLocker_rule2
behavioral1/memory/2184-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2184-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012331-11.dat	CryptoLocker_set1
behavioral1/memory/2184-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3044-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3044	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2184	2024-04-15_7053916314629c8e2ecf224d4851fdd3_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 2184 wrote to memory of 3044	2184	2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe	28
PID 2184 wrote to memory of 3044	2184	2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-15_7053916314629c8e2ecf224d4851fdd3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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
45KB

MD5
82dee6842c9bd2ab6ad3381d6d2db09e

SHA1
3451db0c05c6ac9cf7fa85dbc3d61ad0d5de086c

SHA256
1df716a9e3e02abcd398835bbdbac3f303adc9d4715578d70a571325bbc76e5c

SHA512
814f5f45c7a5fcfa6ec4bf6037f4b41f0e29c65fe50024039a3e789a477cbf598b54a24075ab4d114dbce8ce142fde8466107cf758ccd26b99dfe429dcbe00f5

Download Submit
memory/2184-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2184-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2184-3-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2184-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2184-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3044-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3044-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3044-20-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/3044-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download