e1a9d6c60b6a186a637135605a0b9bec0f5a3499b2e88e9ac1a597118c373de2

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-05-2024 01:41

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General

Target

2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe
Size

44KB
MD5

ccdaa689cdd29ec34b7b506afca7a100
SHA1

b58ba1f071a99e260b69b965b394229718f31b32
SHA256

e1a9d6c60b6a186a637135605a0b9bec0f5a3499b2e88e9ac1a597118c373de2
SHA512

bae6db05476747cc2b55a671e7dec1041dcc945463e358acb640d310502554a6c06278a1185aa82a62fadd2de082a81f2715650cd2a397c4e888e9f46e1eab40
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUpaSwB:bm74zYcgT/Ekn0ryfjR1B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/3064-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000013417-11.dat	CryptoLocker_rule2
behavioral1/memory/2528-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3064-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2528-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2528	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
3064	2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_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 3064 wrote to memory of 2528	3064	2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe	28
PID 3064 wrote to memory of 2528	3064	2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe	28
PID 3064 wrote to memory of 2528	3064	2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe	28
PID 3064 wrote to memory of 2528	3064	2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_ccdaa689cdd29ec34b7b506afca7a100_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2528

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\hasfj.exe

Filesize
44KB

MD5
905658e3c311f133f9290a2797f4b81b

SHA1
bf8e12b3e75fbbc86d217ced922210f436ca9f48

SHA256
4d61e9f2bef67db89b800bd349e85503d81a2e2b222619e7957a4e350f1e16d6

SHA512
01a300fb61a5b940da5e9f300ddbb70795480fd4b6337a7964e9a403b836704d4f22279ff5af705380d609dfd6b42d7473f284e7345f51ad91596fc0950d770e

Download Submit
memory/2528-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2528-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2528-25-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2528-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3064-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/3064-1-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/3064-2-0x0000000002D00000-0x0000000002D06000-memory.dmp

Filesize
24KB

Download
memory/3064-9-0x0000000002920000-0x0000000002926000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download