a7fac64643d9c9b0a55f113238aa9920830e78f58329d21a0a2cdadaab2cf52a

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17-02-2024 11:45

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe
Size

126KB
MD5

b4b1810b06d06d33b5ffcd1b02f08502
SHA1

5e12ceee4b6b0d137f05f52f5a6c3ee8ad3ed736
SHA256

a7fac64643d9c9b0a55f113238aa9920830e78f58329d21a0a2cdadaab2cf52a
SHA512

c868ccabf2dcbad96440be5fa0ba9758ddfec2d7ce7e3c35857b2f4a22f697f6755bbf20e7991870ee3afc36c14b008417138f25d6abb8011f16e65cbc132dc5
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpR/S:vCA9OtEvwDpjU

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122a8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2228	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
944	2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_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 944 wrote to memory of 2228	944	2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe	28
PID 944 wrote to memory of 2228	944	2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe	28
PID 944 wrote to memory of 2228	944	2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe	28
PID 944 wrote to memory of 2228	944	2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_b4b1810b06d06d33b5ffcd1b02f08502_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:944
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2228

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\misid.exe

Filesize
126KB

MD5
b6ce5b1d600668e1d943f961b0ff0239

SHA1
35a985aa112c5a7d0e6c809bff44bd0002804a83

SHA256
312b583d484a3c402c48ee3a03fd27a638cc944705f7838580a9e5b7293c8494

SHA512
a7a957dfc746920aa96f5596670d239534c16ca220a75c9af2917755108939aff6249ec659cf08a97e4bcee15ee97b1165bc7bc9f2a3abc4c412f01a1ac3dc52

Download Submit
memory/944-0-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/944-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/944-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2228-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2228-18-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download