874006fc633da44aac0f7ad9b8f60f6acfb4b0f07cfe45af5233225121ab3012

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 05:30

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General

Target

2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe
Size

69KB
MD5

a860573bec1afca70e912ee46ef21758
SHA1

663978e8c3da3b4a8b78c13fa4cbc823556b3712
SHA256

874006fc633da44aac0f7ad9b8f60f6acfb4b0f07cfe45af5233225121ab3012
SHA512

6f6510f91057a79d29666a9d70a5912eb890501bfb7375138093a2acd97ebbd4adae47c8a07d64f46feb51c4bffe4995e24c39b45a1b42751b4a738c266f6d61
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUtbUu:DW60sllyWOtEvwDpjwF85R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/3060-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d00000001272c-11.dat	CryptoLocker_rule2
behavioral1/memory/3060-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2272-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/3060-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d00000001272c-11.dat	CryptoLocker_set1
behavioral1/memory/3060-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2272-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2272	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	2024-01-27_a860573bec1afca70e912ee46ef21758_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 3060 wrote to memory of 2272	3060	2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe	28
PID 3060 wrote to memory of 2272	3060	2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe	28
PID 3060 wrote to memory of 2272	3060	2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe	28
PID 3060 wrote to memory of 2272	3060	2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_a860573bec1afca70e912ee46ef21758_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2272

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
69KB

MD5
8d5d72a9077d7c26a9ca979d017940f8

SHA1
1eacbbf3cdcc5cc9370e9bf8be8d4479fc1dc275

SHA256
ca2ebb4205cd0938488ba4e569f83d3f38c984a12d8798bdd39000173d0a57e5

SHA512
a02ddeee8a27b759549776d268758eb4109718cbfa306b35fdee01d081d1f259b4f00e632545f724a8d37b9b3b279567ceb5e26b567d3212bc076c98a8773186

Download Submit
memory/2272-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2272-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2272-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3060-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3060-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3060-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3060-3-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3060-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download