83c654803ef1a5969d96b70012008e815d5bbb5eaba471f2db52414cb741e582

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/05/2024, 04:42

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe
Size

32KB
MD5

6041bc0f8adf99a357c0d6a4d082f274
SHA1

c43b416a41fc3332ba5d8585c7d13e471ed58bd6
SHA256

83c654803ef1a5969d96b70012008e815d5bbb5eaba471f2db52414cb741e582
SHA512

4aff836e69c92cf3b74bf6f0dfc50a7ffb8f7dd68209d3fe7d9ce3c7753cc3f76fc21a988465277aebdacb6317eee2883ab50e283ca3dc5534e31dd050dbbbd6
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTG7lCvL:bG74zYcgT/Ekd0ryfjhD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2956-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000015a2d-11.dat	CryptoLocker_rule2
behavioral1/memory/2956-15-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-25-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3012	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_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 2956 wrote to memory of 3012	2956	2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe	28
PID 2956 wrote to memory of 3012	2956	2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe	28
PID 2956 wrote to memory of 3012	2956	2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe	28
PID 2956 wrote to memory of 3012	2956	2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_6041bc0f8adf99a357c0d6a4d082f274_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3012

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\hasfj.exe

Filesize
32KB

MD5
e6a50642729704a439b4fc0106594b76

SHA1
2e6fa89886e0bd44eb36c60ce2bc0e09bae6a344

SHA256
83dd097d5243395d8bac8e30e20aab5322183e7650115e06a1d138f129295e8d

SHA512
b137f0c01553881015edc6f19cafdadf7a0b18efbc3e6c0c951f0e7c14ef4ab3141ada10658781d2f61b6030c455e93d5d6675c2b0f950251d83dd47f394b0dd

Download Submit
memory/2956-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2956-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2956-9-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2956-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2956-15-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3012-17-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/3012-24-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3012-25-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download