e66f3fe9b82ca29a3a25c8db0cf1fb9dad11cef7525583085a90920d448c6e97

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 03:26

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General

Target

2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe
Size

58KB
MD5

241319cb2cdbb0efc6bcda4533ef75f1
SHA1

9746c1b658bf8c13f44e0818077f842c6fb0bc2c
SHA256

e66f3fe9b82ca29a3a25c8db0cf1fb9dad11cef7525583085a90920d448c6e97
SHA512

c73b2339926a63e190d87ea907d324becbf3e98103de9725dbb0aec27a15f9363d2ba9a0eae8d0085e21d0207a9b3a46594f0666902eda85f785cfff01365c72
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxnxZ:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012232-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2780	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2536	2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_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 2536 wrote to memory of 2780	2536	2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe	28
PID 2536 wrote to memory of 2780	2536	2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe	28
PID 2536 wrote to memory of 2780	2536	2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe	28
PID 2536 wrote to memory of 2780	2536	2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_241319cb2cdbb0efc6bcda4533ef75f1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2780

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
58KB

MD5
91984a5c351237164ca08ea7a80021fa

SHA1
558fb150ebb8b324e15e3e5a178d5271090cc864

SHA256
7accf79ff4742bef58bb648b22f8d8e467b932accfec86354d4c61ffca917555

SHA512
10337ca1a8bdb79f140815caa840684978ac99f3419a1e2520a7379ae067d70d254e3352268de212bd07eb7199c3fba3e42b57257478a52377eee678693a0208

Download Submit
memory/2536-1-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2536-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2536-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2536-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2780-16-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2780-18-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download