07c54d5e351385e6e11839e90d3512e53b977cc559c3ab4ff4b2587caab31c0f

Analysis

max time kernel
132s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/11/2024, 03:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe
Size

55KB
MD5

e997d94bc69d0333093d8baf9e822cf7
SHA1

ab1b1949b927ad1efcae3d0cb5efa7a311c93973
SHA256

07c54d5e351385e6e11839e90d3512e53b977cc559c3ab4ff4b2587caab31c0f
SHA512

30a1fad5ef411940ee67ddeef1b11e55ea275a99675be785aef187ff78cbcec2c3ef0782b91c2e8bd81c1519338789adf86d637be211172f7a25a289ebf7288b
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkgY8:z6QFElP6n+gKmddpMOtEvwDpj31ikgj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
876	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/876-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000012254-14.dat	upx
behavioral1/memory/876-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2636-26-0x0000000000500000-0x0000000000510000-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	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 876 wrote to memory of 2636	876	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe	31
PID 876 wrote to memory of 2636	876	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe	31
PID 876 wrote to memory of 2636	876	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe	31
PID 876 wrote to memory of 2636	876	2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-20_e997d94bc69d0333093d8baf9e822cf7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:876
- 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:2636

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

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

Filesize
55KB

MD5
e9c0429410e2613b2f3aaa1184c843a7

SHA1
d1507c506857590607fef8a68ca216f4b6f3b595

SHA256
ec938ec76d0e7598e97c99156824c371352fa239b61834da675f269d214dac26

SHA512
162c30a846a706b25420c694895e4444a62bbc286276f93e50313df34577fd7591a264cc2390b8f3760a122596047f44c4199bbf34f99e28710448463a5e2e3a

Download Submit
memory/876-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/876-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/876-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/876-3-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/876-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2636-18-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2636-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2636-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download