8f34f841be9629c65affb4618224497cd18a04d2a0d8265df7c0ccd9243ea81f

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
14/06/2024, 19:24

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General

Target

2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe
Size

42KB
MD5

1d058408c9a99bb081a612ad56f383b6
SHA1

b2a76eca1f341a7a09b3d2b7ed5ff1deacb7e94b
SHA256

8f34f841be9629c65affb4618224497cd18a04d2a0d8265df7c0ccd9243ea81f
SHA512

02e8114872a16882e95720f698708f7b76729cb00a85c47cefbd71234283e0b9f8b01898318342b207cb9173d2c13ae0965f01854c94baba6d1c35bcfdbc658f
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAg:bCDOw9aMDooc+vAg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/1752-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000016a29-11.dat	CryptoLocker_rule2
behavioral1/memory/1752-12-0x00000000005B0000-0x00000000005BA000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1752-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-17-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-27-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3044	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1752	2024-06-14_1d058408c9a99bb081a612ad56f383b6_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 1752 wrote to memory of 3044	1752	2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe	28
PID 1752 wrote to memory of 3044	1752	2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe	28
PID 1752 wrote to memory of 3044	1752	2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe	28
PID 1752 wrote to memory of 3044	1752	2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_1d058408c9a99bb081a612ad56f383b6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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\lossy.exe

Filesize
42KB

MD5
b77cfdf6270141c07187ba65a9fdaa9b

SHA1
ff89f681aa5d32eedfc4ca2eaffb3dd833b6162a

SHA256
c48f1462a4a29cdd23f8c79105c5450a95bdfd9c09ff087434e25dd62a80fe27

SHA512
9619fdeadc43e2a02a1de8014798d0645ff342b276957172b8dbbb88d03ec897d85c12785e22a011de8160ac3e9670fce964c54717d9b2edc6c6faada46bb87e

Download Submit
memory/1752-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/1752-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1752-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1752-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1752-12-0x00000000005B0000-0x00000000005BA000-memory.dmp

Filesize
40KB

Download
memory/1752-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3044-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/3044-26-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/3044-19-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download
memory/3044-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download