145e0c8db34174cec38087c35873449736e469306d9a72d3b8a705653a455ae8

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
25/04/2024, 02:38

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe
Size

70KB
MD5

51cc29f5136fbfaf48d7dda3560e4318
SHA1

2f03e35f1582fe1c3f4620f7f87c9569b821c0ab
SHA256

145e0c8db34174cec38087c35873449736e469306d9a72d3b8a705653a455ae8
SHA512

dd57e40e6a777b942101e1300224b34a7d5f73770141deda856c595f017e20b84a379182cf407a4cb51605d6010a91ba8f06ffca57ad2055b7e298838144b25a
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU50n:DW60sllyWOtEvwDpjwF85E

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/3056-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012330-11.dat	CryptoLocker_rule2
behavioral1/memory/3056-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2972-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/3056-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012330-11.dat	CryptoLocker_set1
behavioral1/memory/3056-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2972-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2972	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3056	2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_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 3056 wrote to memory of 2972	3056	2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe	28
PID 3056 wrote to memory of 2972	3056	2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe	28
PID 3056 wrote to memory of 2972	3056	2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe	28
PID 3056 wrote to memory of 2972	3056	2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_51cc29f5136fbfaf48d7dda3560e4318_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2972

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

Loading Replay Monitor...

Downloads

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

Filesize
70KB

MD5
fdfde8d485fc4f4364a1ab215e471f77

SHA1
40cd4477e30b165b6edb00678d9fa2aec46ac03e

SHA256
fbf71af1baf6f09bbe09e670a294d0680b349e94328b26426c3138d9d88c9794

SHA512
9f985811a9d8073632e86cadbec905bc1b087f3c553f33bbe6e4245a166ff019fb513cb04c507f4364f8ba0bde611dab3c70fe748846dac4ac31fbe75b220a8f

Download Submit
memory/2972-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2972-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2972-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3056-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3056-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3056-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3056-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3056-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download