848ee8fb930ec2d20d4eb2cb9108623ba53e5daaf7d3fadf1a8b8ec4d173d2a0

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 09:28

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General

Target

2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe
Size

51KB
MD5

4a967c8e2e2e4d7d755ebec57de3ca70
SHA1

1636c145b2fe2bc5e26a78f06a4c8202227014b9
SHA256

848ee8fb930ec2d20d4eb2cb9108623ba53e5daaf7d3fadf1a8b8ec4d173d2a0
SHA512

c6e1e7367ba7ae93a2ca94f4bd3e4c4734b8b1cb8d312ec62620db53482fe38f872162217cf1fa2013349815fa1d92582408ceac72f384f5bce4d44b4da09422
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPxyV4tFVgQ4c:bIDOw9a0Dwo3P1ojvUSD4PRtFVgPc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012256-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2116	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2368	2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_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 2368 wrote to memory of 2116	2368	2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe	28
PID 2368 wrote to memory of 2116	2368	2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_4a967c8e2e2e4d7d755ebec57de3ca70_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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

C:\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
51KB

MD5
574200a6a28644a86e0a1ed7e683267a

SHA1
5db50766e96fb84f953cd989a91c2b3a88f4f909

SHA256
8ceb17e8a87c6338a7986b5582d7be023e730178bee6d779dd60c80356a49921

SHA512
df3c81cef49cc6af454bea24f8b330ce1df889abac3b16e8e804d7041c240c727a426f3bd9ce3e05daea4e49ad335ed5d3ed3675d49f1a519583f7558cf34159

Download Submit
memory/2116-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2116-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2368-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2368-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2368-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download