ad5d6a88ced1d7fb83c0553c8b87855daf99b0f84cc517c21caa2efc186c9b40

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
03-10-2024 04:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe
Size

62KB
MD5

2d874084a453909644ff4cf3f4bde989
SHA1

5f396e7b7dc8d9c18b9ef885f3eb85bba0a6e6a6
SHA256

ad5d6a88ced1d7fb83c0553c8b87855daf99b0f84cc517c21caa2efc186c9b40
SHA512

de3392913a902dcc9975636fd8bd546b3dc676a7044f31a0fe79382d29040efedd9f2d037b72381a3133d74aa15ee9f4c15c057dc98d71bf88a64466e5b5ad8c
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qh/:H6QFElP6n+gou9cvMOtEvwDpjCpVXhh/

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2368	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d0000000131aa-11.dat	upx
behavioral1/memory/2368-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2332-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2368-26-0x0000000000500000-0x0000000000510000-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	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2368	2332	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe	31
PID 2332 wrote to memory of 2368	2332	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe	31
PID 2332 wrote to memory of 2368	2332	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe	31
PID 2332 wrote to memory of 2368	2332	2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_2d874084a453909644ff4cf3f4bde989_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- 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:2368

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
62KB

MD5
1df80469d7736cfdc3da2c2515788e8a

SHA1
d8cae6dae5a0c7299d3745c68efcdcaca0f4f9b4

SHA256
cc0905a5d034fd9006f92b3c297a0705e9497ecf81e96cd135bf645a98005044

SHA512
90045293ef99c34eb8b5beaaeec4daa8d000e14a4236edef3f9ea1dabfa9a3ae4247ef1541bbd49f2e7ef6cd6f2d5b13b400dfa79816e60b6fd2a5fb3536c1a9

Download Submit
memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2332-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2332-3-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2332-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2368-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2368-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2368-18-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2368-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download