4305bad2a13ef58ab48affb53294e76617257bf05cc7795cff752969a52c638c

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 04:33

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General

Target

2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe
Size

73KB
MD5

51498ba0e4b7f50b4c4d81bdfed0c360
SHA1

2b62412f53e2b4f7aadcec84c63f453dd981dfb8
SHA256

4305bad2a13ef58ab48affb53294e76617257bf05cc7795cff752969a52c638c
SHA512

d50471a85821dffa5d936ce6fd1a4dc708f1460684a2186a7c03683c0b77a80513d02957ffac073430affe9ba0b7dc69b7f412f92c6946c6371575a0498ec39a
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1RK:X6a+SOtEvwDpjBZYvQd2I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2280	2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_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 2280 wrote to memory of 2672	2280	2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe	28
PID 2280 wrote to memory of 2672	2280	2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe	28
PID 2280 wrote to memory of 2672	2280	2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe	28
PID 2280 wrote to memory of 2672	2280	2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_51498ba0e4b7f50b4c4d81bdfed0c360_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2672

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
73KB

MD5
f98771efadf5aaf5b39cfab8ce0a7033

SHA1
1a4d029bce69981757e51da4127d781ad7d0a4b2

SHA256
4c16965771b1e166301537f09a2d5304f993f7e6b6b8894ad742b73c975fde0a

SHA512
8cb674e5a234b109d32c583418cb4dcceb0e0fd78e797503a955c88e3359ddf444ac3dd219b05f4e956dba26cbcd6ea3596c68f3ba58b5b3596475612f23f171

Download Submit
memory/2280-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2280-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2280-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2672-15-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2672-16-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download