085b8a6962c36ef8b6244019396c7823c9daadabad3726f543f9a92e19d27313

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 03:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe
Size

39KB
MD5

7d5ce2a3ea42c29393c4c52b5eed82c5
SHA1

113a68984c5437efba94bfb6fe554285d665136b
SHA256

085b8a6962c36ef8b6244019396c7823c9daadabad3726f543f9a92e19d27313
SHA512

dc526a400bf09cce3c84a54b5072b4fdde6c8f1c17580942e146079010e6746b9cacef3f6ded071ba344e01a41979ab320f7207364f8ace9e98c8baf8325fc26
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKK:bIDOw9a0Dwo3P1ojvUSDhs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014826-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2228	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_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 2356 wrote to memory of 2228	2356	2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe	28
PID 2356 wrote to memory of 2228	2356	2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_7d5ce2a3ea42c29393c4c52b5eed82c5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.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\lossy.exe

Filesize
39KB

MD5
4f4078fd00cb9b670828dc1d50d009c1

SHA1
4134d6f5693d9285740a988ebb2a116726afb5e4

SHA256
b99d19f48b74b044dae80c4919819f4f5a93b63964018ba2a0f4ce48bceec9a7

SHA512
513afa7798f67ea3d449c7bf774dc2aee587bfe6edba21eb3cc11016e9dbaed0b14ec8ed87b6af0bb0824149b7fb279401e11498e1e59bd1c2a8a9ca2100865a

Download Submit
memory/2228-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2228-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2356-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2356-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download