908a353a54e7e1ca21a308195b6530fec7546ec05ad1014d0b16217032ea9eb6

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 21:03

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General

Target

2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe
Size

39KB
MD5

0d3ad82a9af1553c842fb42036869c6c
SHA1

9c4fde63be8c344218887641e68b08f200fc1ffb
SHA256

908a353a54e7e1ca21a308195b6530fec7546ec05ad1014d0b16217032ea9eb6
SHA512

b3ac0f183c506eda02ae75e76d77fead53999f377841dfbb3b466934a0aa7b1b1be080b325ee76c8d9839dfbfc6e1c8c0a227e07c1ee69b1534f6569ef9d5b4f
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITa:qDdFJy3QMOtEvwDpjjWMl7Ta

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2276	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c00000001226d-11.dat	upx
behavioral1/memory/3012-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2276-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2276-27-0x0000000000500000-0x0000000000510000-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	asih.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2276	3012	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe	30
PID 3012 wrote to memory of 2276	3012	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe	30
PID 3012 wrote to memory of 2276	3012	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe	30
PID 3012 wrote to memory of 2276	3012	2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_0d3ad82a9af1553c842fb42036869c6c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3012
- 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:2276

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
39KB

MD5
652f529d038613e45bc5e105b1a54cf7

SHA1
e8bcacb7f83228907630699016838c38e5e3b85f

SHA256
59b80185fb64f9def4ae4c9541c286b970dbda68de635c6c51f65cc1df3766e7

SHA512
2ec97c0d554d92fc16600c68a7ab996446ae08fd171345a2dd774e8f23e70f9a734e82ec2babcf5bc0de82824173d5630a66b26b93d03b47ebf50aaca2d7047d

Download Submit
memory/2276-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2276-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2276-19-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2276-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3012-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/3012-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3012-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download