d5b7a81b12ce158217b45301eef522b8391a2d55ab229600e8247745be6c74f2

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-09-2024 04:24

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General

Target

2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe
Size

64KB
MD5

377f37d319a3c26b53117b821e9c7303
SHA1

b015464df657104b556d43724e7d060c67736a53
SHA256

d5b7a81b12ce158217b45301eef522b8391a2d55ab229600e8247745be6c74f2
SHA512

198c0f4cdca2feca302d35b0b3e49fbba3aa34d00a96068c35f48ba0e8c90b39d06fc4c482e0b9ccb1469256e706902c5f983888298e6e737429e2fdcc5b955d
SSDEEP

768:0Qz7yVEhs9+syJP6ntOOtEvwDpjFSXOQ69zbjlAAX5e9zw:0j+soPSMOtEvwDpjwizbR9Xwzw

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2364	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1852	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1852-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000f0000000139a5-11.dat	upx
behavioral1/memory/1852-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2364-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2364-27-0x0000000000500000-0x0000000000510000-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	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2364	1852	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe	31
PID 1852 wrote to memory of 2364	1852	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe	31
PID 1852 wrote to memory of 2364	1852	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe	31
PID 1852 wrote to memory of 2364	1852	2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_377f37d319a3c26b53117b821e9c7303_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2364

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

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Downloads

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

Filesize
64KB

MD5
ad74b33d1e97722f9176868d1ce50031

SHA1
933c03fca7b6ca3aa6a7e60e34f223ea59040f16

SHA256
04b09c2e183b9d706408aa47e540c43d4be691c795c935849d391fd1fb6e53bf

SHA512
e6b36b8bfccd4aec92843aa862e1ac82b18526deb90e1b0adc27c1516af047cc65c7560fefde5c7694d83c449abd72f106779634e35dd814811c5c40409796ce

Download Submit
memory/1852-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1852-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1852-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1852-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1852-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1852-14-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

Filesize
64KB

Download
memory/2364-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2364-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2364-26-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2364-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download