5471ab4c4ed51d65c9714560fcfe315928afa5c0cb28f065899ee2ae3cbe3ff1

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 19:40

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General

Target

2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe
Size

68KB
MD5

cb34a64140776866a72d1f6df6a9cded
SHA1

e396e71bfe0000de5fefa9552db4dae9d4c8b9f2
SHA256

5471ab4c4ed51d65c9714560fcfe315928afa5c0cb28f065899ee2ae3cbe3ff1
SHA512

ba6cf59c9e8f355bf83ac6cdcd438166cfe8168be57de089e0707ae6093242af07e418c68fc36dc6f0fe8931b64141c2e17e870ac07f4d472aeb28916b3deee2
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUM:DW60sllyWOtEvwDpjwF85+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2936-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012203-24.dat	CryptoLocker_rule2
behavioral1/memory/3064-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2936-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2936-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012203-24.dat	CryptoLocker_set1
behavioral1/memory/3064-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2936-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3064	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2936	2024-02-04_cb34a64140776866a72d1f6df6a9cded_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 2936 wrote to memory of 3064	2936	2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe	25
PID 2936 wrote to memory of 3064	2936	2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe	25
PID 2936 wrote to memory of 3064	2936	2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe	25
PID 2936 wrote to memory of 3064	2936	2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe	25

C:\Users\Admin\AppData\Local\Temp\2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_cb34a64140776866a72d1f6df6a9cded_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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\asih.exe

Filesize
68KB

MD5
c435ad6e1dd22ff05913e1429fef207c

SHA1
ab363b0cd083ba3f805507e30b1cca056dad3202

SHA256
a872e802b78fae9a1f06f65605177a5c60fec68a42ad3be117c2659b0f636aff

SHA512
cd3be909446214d162c4410f5dbf3b6847774aeccf26be80c9b3fd0a961fffa64fa45ea4ee164949332ad971f7e4ec3acda5f9658b228ff1bcc45967233f32cb

Download Submit
memory/2936-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2936-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2936-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2936-9-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3064-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3064-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3064-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download