6b19c3cc6f263650a59225bd5b1a5c16b835b9069f70dd6e36286d05102ba7da

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 19:53

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General

Target

2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe
Size

388KB
MD5

6ff8dd74855fc2b3ef3b9ae4f8cc507f
SHA1

1ad37e8933186f6f724efcc141a84555f9f7fd1a
SHA256

6b19c3cc6f263650a59225bd5b1a5c16b835b9069f70dd6e36286d05102ba7da
SHA512

9628371a742be3529a1119ab551286df4f057e452a007718c88cada3583a819d554164c204cd722ebf15c89a5e0c99b715a3e06a4edc1dbc17eb64deaa9dc425
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXi:nnOflT/ZFIjBz3xjTxynGUOUhXi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000900000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1412	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_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 2332 wrote to memory of 1412	2332	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	28
PID 2332 wrote to memory of 1412	2332	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	28
PID 2332 wrote to memory of 1412	2332	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	28
PID 2332 wrote to memory of 1412	2332	2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_6ff8dd74855fc2b3ef3b9ae4f8cc507f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1412

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\hasfj.exe

Filesize
388KB

MD5
a659c8778788e038653ddbf33ed3ad13

SHA1
1c83b0928babecccbfdc18e75c19db881e0e508a

SHA256
ebdbb7ab8f0128887249705debeaf6d0f6a6ab797f9086abcfeead8712505b3b

SHA512
0f51ca0705b35d310aa255280664ab9cde01e5fcc428d26fa3da7997e21b2cac7393716f447f0e6e8aae3e9141f9b11838ace7c2a72ffc47c304c396af3351cd

Download Submit
memory/1412-15-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/1412-20-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2332-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2332-1-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download