4e4d81a81101880e3f1216ec89a7c3db85e0cbf883875e8060bcbf98d0c95631

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 00:31

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General

Target

2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe
Size

36KB
MD5

6032943f85354850966b9743e330e86d
SHA1

395a5503db983ff42e5642ef6a104efbafc15381
SHA256

4e4d81a81101880e3f1216ec89a7c3db85e0cbf883875e8060bcbf98d0c95631
SHA512

fa477bc03c27d371084cc27f7d7de26fe582270f630fca3c2eea252c2cdd63b4d6c80d919d6a7f6f716f7df2ca52442c250c1fa6001da2f16feded0715cc4241
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUgIunIVpeNs23mAA6lx1hun:bA74zYcgT/Ekd0ryfjPIunqpeNswm64

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2564	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	2024-06-08_6032943f85354850966b9743e330e86d_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 1976 wrote to memory of 2564	1976	2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_6032943f85354850966b9743e330e86d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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

C:\Users\Admin\AppData\Local\Temp\hasfj.exe

Filesize
37KB

MD5
b6f6607fdd50c04db0773f72c03c4748

SHA1
fb2b0ec333b14214b707451cc7ae7d88e48c8e22

SHA256
23dee846678c8c4d2d563290c64fdff0f3f4f4b25e2a3246118284fd9e467da9

SHA512
f28ed17d45716f5ea2ab0546b7a129448c63dcf8a5fe0d0cf340fa8d0c616cda70a8093506578f90e67d3f30f4594f3cb4a2fecb52dff853ea4ccba0855bfdd5

Download Submit
memory/1976-0-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/1976-1-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/1976-8-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/2564-15-0x0000000000790000-0x0000000000796000-memory.dmp

Filesize
24KB

Download
memory/2564-22-0x0000000000780000-0x0000000000786000-memory.dmp

Filesize
24KB

Download