adf79ad668d77ba133223954f07c834576aeb5d00c5fb40622bff6f21e5a9628

Analysis

max time kernel
133s
max time network
144s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13/10/2024, 02:31

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General

Target

2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe
Size

59KB
MD5

b355bde004b1ed2c81cd808f6adad360
SHA1

fe54496af8f81bb17013c6fad9508800d375376d
SHA256

adf79ad668d77ba133223954f07c834576aeb5d00c5fb40622bff6f21e5a9628
SHA512

fecc5ddb294bfa1f05a0cec1ecfb4d7b2422754615d73f9fc39b7f1f46fed46f322d1e267e88f154c184ffe19885c47f8aa01f3877834ce58102b2e15451cbd1
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP6p6:H6QFElP6n+gou9cvMOtEvwDpjCpVXw

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1936	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c000000012262-25.dat	upx
behavioral1/memory/2356-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2356-13-0x0000000001E20000-0x0000000001E30000-memory.dmp	upx
behavioral1/memory/2356-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1936-26-0x0000000000500000-0x0000000000510000-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	2024-10-13_b355bde004b1ed2c81cd808f6adad360_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 2356 wrote to memory of 1936	2356	2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe	30
PID 2356 wrote to memory of 1936	2356	2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe	30
PID 2356 wrote to memory of 1936	2356	2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe	30
PID 2356 wrote to memory of 1936	2356	2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_b355bde004b1ed2c81cd808f6adad360_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2356
- 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:1936

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
60KB

MD5
066bb0412dcbca236a2cc5ce745784c5

SHA1
2d67342887cb93a1476ea75e7d10da63e5265a4e

SHA256
6ceeb7890dda6c04b6a29f658a72c2a02c572bdc48082460f69fa29241675c25

SHA512
f3e1444337583b913cd0cdc37cd66695cce40452c1de4387cfe0bc880af43ee6441adbded4166fcdf6d39f6ab8cc11c63cf6c274772b2837448a397d63a1298d

Download Submit
memory/1936-19-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1936-18-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1936-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2356-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2356-13-0x0000000001E20000-0x0000000001E30000-memory.dmp

Filesize
64KB

Download
memory/2356-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2356-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2356-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download