c4003466f341f9e36f3990bc13ee317c8b10a03209ced1b55a87c949b461d6bd

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 04:39

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General

Target

2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe
Size

62KB
MD5

35d2b798be45414354827aaf8e33a5b8
SHA1

6a58e2f432cede271042e539ab366ff42e19658d
SHA256

c4003466f341f9e36f3990bc13ee317c8b10a03209ced1b55a87c949b461d6bd
SHA512

6dc61b635a37ccb519b2320b5ac13e8d1f2c0dfe582f90c9612672ce10f312dc881a6f3ec2786d61f9bf635bd0eca16e295e1b84b81d795f2cf09faecbb56869
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9Q:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2128-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014b27-11.dat	CryptoLocker_rule2
behavioral1/memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3020-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3020-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2128-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014b27-11.dat	CryptoLocker_set1
behavioral1/memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3020-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3020-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3020	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	2024-05-21_35d2b798be45414354827aaf8e33a5b8_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 2128 wrote to memory of 3020	2128	2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe	28
PID 2128 wrote to memory of 3020	2128	2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe	28
PID 2128 wrote to memory of 3020	2128	2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe	28
PID 2128 wrote to memory of 3020	2128	2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_35d2b798be45414354827aaf8e33a5b8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3020

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\misid.exe

Filesize
62KB

MD5
59d443fe85080d9d95e096c5fba82c31

SHA1
49e6ee73d69e4c44aad8da73a724db620ef77fb0

SHA256
cfe5aa8095b146b95c2500c7e6e46b7bfd538598807c5e4e8b9fc2f5e290df8b

SHA512
9811df3e91937a6f13d2e20505ccbef29b837c9b76cbc8506df7b1437cec54d99a8b5905dd8447eb3e9ddd62b070943c30b52f89e1417a986c12b168a9d5d1bd

Download Submit
memory/2128-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2128-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2128-3-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2128-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2128-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3020-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3020-25-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3020-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/3020-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download