92b1d688f5a0c572d7655ee24f1e20ed2579a85e4f172a563a3a49e2665f29d9

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 02:26

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General

Target

2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe
Size

90KB
MD5

4180a664b4d00a1152154566ae988a51
SHA1

63bb90d91f8b45d652abf5f9dc53db273343e2a8
SHA256

92b1d688f5a0c572d7655ee24f1e20ed2579a85e4f172a563a3a49e2665f29d9
SHA512

2ef43831578a328196a3db6146af9da7a8d8a2d4252ba1af573686431ef377bc54d65be745c7d4f44a0ecae3af47bc10006372cc72d3326093673ac36f796cf7
SSDEEP

768:qkmnjFom/kLyMro2GtOOtEvwDpjeY10Y/YMsvlMdwPK80GQuchoIgtIODwn8:qkmnpomddpMOtEvwDpjJGYQbN/PKwMgF

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
3032	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3032-8-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000700000001211a-11.dat	upx
behavioral1/memory/2636-18-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/3032-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2636-29-0x0000000000500000-0x000000000050F000-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	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 2636	3032	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe	30
PID 3032 wrote to memory of 2636	3032	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe	30
PID 3032 wrote to memory of 2636	3032	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe	30
PID 3032 wrote to memory of 2636	3032	2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_4180a664b4d00a1152154566ae988a51_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3032
- 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

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Downloads

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

Filesize
90KB

MD5
be79b9d39d1819acfd2640d3cce7318d

SHA1
770e3a15665f009da88d6c654ff53f124dd19398

SHA256
b7436a50e281c3f4dea71b0df82d458e8ced31edf33d3f7cce2740a6c2b931fe

SHA512
fecf6ed0d90c1c530715ee4a013172bd47db1f184011461eb01066457d545a34d38f480f3214ea769a7b59140ab5a7bfb036fdf1efc3c3ab81fd569bd60bf7a1

Download Submit
memory/2636-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2636-20-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2636-27-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2636-29-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3032-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3032-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3032-8-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3032-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3032-16-0x0000000001EE0000-0x0000000001EEF000-memory.dmp

Filesize
60KB

Download
memory/3032-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3032-28-0x0000000001EE0000-0x0000000001EEF000-memory.dmp

Filesize
60KB

Download