b3a8831825850c96296b5ef2e15610fb4475b51c95507bed31a294722f157b94

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
08/04/2024, 18:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe
Size

35KB
MD5

2bb52d3ae931601bc2a8be3b4ded38e8
SHA1

dd26e27d3380d5124cc8455af7f8a7ad0b5207c9
SHA256

b3a8831825850c96296b5ef2e15610fb4475b51c95507bed31a294722f157b94
SHA512

0775e1c7b62d2384a9d6abccaa3290982e524f97c064550d71d3db03f78c6fb95de14460242eec4b5287636119dc178d84ece488f9619b7b57b34cd4656160c5
SSDEEP

768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4r:fT+hsMQMOtEvwDpjoIHr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3020	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1948	2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_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 1948 wrote to memory of 3020	1948	2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe	28
PID 1948 wrote to memory of 3020	1948	2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-08_2bb52d3ae931601bc2a8be3b4ded38e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1948
- 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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
35KB

MD5
21f2b1743b2e9f692f393b631009f001

SHA1
88c0fa50544027d4cf941f72339fed6440f935d8

SHA256
394b9eb78cdaa123231e4d8c27c6869d1591dd68a4c6307e16264cc22f09b5a1

SHA512
3f4e1ef95a9904e6b35fdd9e61e5335da95f0d0f947c996d5ca422b6473c90f07afaca7d42c211a350110d3ce21b90dbf83463f9a7331d1017601e82173d51ca

Download Submit
memory/1948-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1948-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1948-8-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/3020-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/3020-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download