9f2d21e7629f9028a4a8576a96bdf9fc0466ba73602e4c8d25a803fbe236c7c1

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 00:36

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General

Target

2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe
Size

70KB
MD5

2be96cbf40b7813ab0b01f8ea945b775
SHA1

4cb21b732a9e971893b3b01a1e94c4b66ad40e44
SHA256

9f2d21e7629f9028a4a8576a96bdf9fc0466ba73602e4c8d25a803fbe236c7c1
SHA512

9be1fadd1b317f13ee47ad54394686017924a9af5f940e6b078c1e9134ca5daa674108455342b62695c1ecf8c868b886fc1aaa1ba463be9b78820f7fca7ced0b
SSDEEP

1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeB+8x7+:z6a+CdOOtEvwDpjQc

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2452	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1728	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1728-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120f9-16.dat	upx
behavioral1/memory/2452-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2452-27-0x0000000000500000-0x0000000000510000-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	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_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 1728 wrote to memory of 2452	1728	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	30
PID 1728 wrote to memory of 2452	1728	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	30
PID 1728 wrote to memory of 2452	1728	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	30
PID 1728 wrote to memory of 2452	1728	2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_2be96cbf40b7813ab0b01f8ea945b775_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- 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:2452

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

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Downloads

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

Filesize
70KB

MD5
7c955e70aa0a260351a0df40915fcafe

SHA1
b42c5723ae5c5c9add815ebea44be27823181eac

SHA256
22884c6502250183c82a665416dd26ba3f11c997af221ac8a29f6590c55bbc1d

SHA512
146d303a0430d7e364b4728fe44f037ee9fca7af23b0146179e4121dfa76232d213cc61ed34bb5289ebc449c38a02822b43ba80766310d45ee10005814721b12

Download Submit
memory/1728-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1728-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1728-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1728-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1728-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1728-13-0x0000000002A80000-0x0000000002A90000-memory.dmp

Filesize
64KB

Download
memory/2452-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2452-19-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2452-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download