eb41c6e9a7e0cfd9b67c61d970ed7131d2e2d7dd2057b38110eecf67111db11d

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 04:09

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General

Target

2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe
Size

70KB
MD5

c3dfa4bb05ca7ec6ff883a8ee50b099c
SHA1

9874778d4ab891499eb7dd59ebe74f67c083e5ab
SHA256

eb41c6e9a7e0cfd9b67c61d970ed7131d2e2d7dd2057b38110eecf67111db11d
SHA512

ffd48a91c549b5368167aed3e49ccbb411d8399d23fa6fcdf213cd93ac0b5fbe3ec148bf1d5be9be516623374806d29cd7f212700eff1e788141c3e8b46c2b26
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUoRw:DW60sllyWOtEvwDpjwF853

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001233c-11.dat	CryptoLocker_rule2
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2940-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001233c-11.dat	CryptoLocker_set1
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2940-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_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 2240 wrote to memory of 2940	2240	2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_c3dfa4bb05ca7ec6ff883a8ee50b099c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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\asih.exe

Filesize
70KB

MD5
1b6f7ba87d4d2ab06493b6e5fb354e7a

SHA1
e31468bdfc619d662da3067f125b1c5e1146ad8f

SHA256
0ac15ebb49b175a0467555288c9934ee877e0e2135b270b6862b66831f7e47cf

SHA512
498afc1463fde8cd3328bf571b84a552e777e4405745e20aca11bf36f14c3d5bbbe117b9127e8619ad4d579f25d7919a2ef659b482bf8eb42c5aaa3f9554a83b

Download Submit
memory/2240-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2240-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2240-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2940-17-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2940-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2940-20-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download