7e3da2c39605daa2da5875be43be719711d92bc6f9e57a81f6ee331943d36161

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 06:40

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General

Target

2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe
Size

34KB
MD5

7b917bf5677b973bcb3952aa379058c8
SHA1

aa428b4280a811e2880a231cc4086cbd2cfe0174
SHA256

7e3da2c39605daa2da5875be43be719711d92bc6f9e57a81f6ee331943d36161
SHA512

46e3f48a87e0f76c33adba767f324b95ad4bf3a0bc590a8ec9da2e07f198aed3f7badb295cbff8e4a437b58174e79db85f4c1cf50d0ddfb33c06ff1bb14640d5
SSDEEP

384:bA74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUr766SJXTQke8SEMMS:bA74zYcgT/Ekd0ryfjQRSNhpSF/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012253-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2560	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2836	2024-03-26_7b917bf5677b973bcb3952aa379058c8_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 2836 wrote to memory of 2560	2836	2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe	28
PID 2836 wrote to memory of 2560	2836	2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe	28
PID 2836 wrote to memory of 2560	2836	2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe	28
PID 2836 wrote to memory of 2560	2836	2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_7b917bf5677b973bcb3952aa379058c8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2560

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\hasfj.exe

Filesize
34KB

MD5
92c97172ae3d3dd04d37a1d3435c79cf

SHA1
883ce7ffff1f36d55f01ff4ca2f4b11ab16e7231

SHA256
e5f68d6397b83b2e6fa0dec85d349e73c43a9135cfb882a41cdb0adb8a75ee7c

SHA512
b8ea85e340ed0a910058174eaa7b10c616db452c040e757c0bbcf211a7de3482d2f821b670f5050c80cba5890e9ddf035ef7b4f9ecac5030ff65b9316e730f3e

Download Submit
memory/2560-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2560-16-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2836-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2836-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2836-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download