e51eee55a8bcb0e13fa83490f03dc113bb5528c51b9357589660ef1750d19fce

Analysis

max time kernel
132s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 07:24

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe
Size

59KB
MD5

317f5b9479f0b454e796ec4977614fcb
SHA1

536e36edd5c052a3506aba8a4c479397c8a4c9cf
SHA256

e51eee55a8bcb0e13fa83490f03dc113bb5528c51b9357589660ef1750d19fce
SHA512

c024754580a7dfbdcc72340729924e2848540d040f1d6e7c61d58059b9b55030e6222d4de6e902413fa2b1c41b1aea988ae13388df8af689c069db7874dc0cd7
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP6pE:H6QFElP6n+gou9cvMOtEvwDpjCpVXm

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1080	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001227e-11.dat	upx
behavioral1/memory/1080-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1080-26-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 1080	2872	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe	31
PID 2872 wrote to memory of 1080	2872	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe	31
PID 2872 wrote to memory of 1080	2872	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe	31
PID 2872 wrote to memory of 1080	2872	2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_317f5b9479f0b454e796ec4977614fcb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1080

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

Loading Replay Monitor...

Downloads

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

Filesize
59KB

MD5
fc0b1b253fcf08fdf4f1e466f4e3152b

SHA1
950c4a63a6c01cde87503bd3ec7dc8a471092f00

SHA256
9f85044f5f65eb44cea25e92c534a1dfe8d25ce9507dc389d9f9e41e2a8c1621

SHA512
e119c1cd539b8524c4ebdc9b9d3249d48d0f571324ba58bc7cff560fb9211990526fd704f688ad374fffc6e7e3cb8fb98392b16a2fb5b7fd93a53779b5d0c34a

Download Submit
memory/1080-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1080-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1080-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1080-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2872-1-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2872-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2872-9-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download