21a5aba704963aed97774d89d9bfde0028f510a4285359ae3d1a313f5d2ab77c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24/07/2024, 07:21

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General

Target

2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe
Size

71KB
MD5

2f5c390c5622f5198e9785ddacf0f462
SHA1

9f8f89e9ebdbe8c267e62a5080594a8613aa3a21
SHA256

21a5aba704963aed97774d89d9bfde0028f510a4285359ae3d1a313f5d2ab77c
SHA512

5acc07f352fadd169758381beb50144e54de497c48d9a3fd0fa7a1cd95e6d391f048911a2e4d1680fa6dbd82f4458e3c281691bd9fd7efcbf0ef8ab6fa12fda5
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9p:C4Q2c94OtEvwDpj4H8zI

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2408	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1780	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1780-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120f4-11.dat	upx
behavioral1/memory/1780-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2408-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2408-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2408	1780	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe	30
PID 1780 wrote to memory of 2408	1780	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe	30
PID 1780 wrote to memory of 2408	1780	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe	30
PID 1780 wrote to memory of 2408	1780	2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_2f5c390c5622f5198e9785ddacf0f462_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
71KB

MD5
045a7747e0a3175f98dbae948c517d91

SHA1
3f54cf0ad6bd9e1f5986b45cf714b046c08fe736

SHA256
e1372c9656cffb8e7352d4d8d84e02765632176f7b2af141134c4b0bd09385a7

SHA512
82da733c2f53818168de61613cb8d1691cd4cab805e145ec203bf64c205c15afb9ed4e865da0927fe74ac2c69a1203a2c3347efaab91fc693979f3564bc8e749

Download Submit
memory/1780-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1780-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1780-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1780-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1780-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2408-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2408-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2408-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2408-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download