74574d88ed59116e7f9d31aa0de79c240b629618b5c46c30417a44ec1920da46

Analysis

max time kernel
42s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 01:52

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General

Target

Mail-IspMailGate-1.1011/Makefile.pl
Size

3KB
MD5

6f753aa3a16b27dce3445f2abb754773
SHA1

b05cf863b5161047fae2fbdac6b87d61b5beb6b9
SHA256

ba7a0f64b2d5d17a298f68e7b7de51c5080e15b38ebffdf7674c1c8fcf26dc8b
SHA512

73c645a44cfc3bfd9184277a48e2bd796790a6930ed28b48bbc97698a90025e27c1d60b4f7939f5b25eb6adbd47a6a2d6480c03bca3fe6944275fd92bd31d617

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 13 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pl	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\.pl\ = "pl_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\edit\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\pl_auto_file	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 768 wrote to memory of 1376	768	cmd.exe	rundll32.exe
PID 768 wrote to memory of 1376	768	cmd.exe	rundll32.exe
PID 768 wrote to memory of 1376	768	cmd.exe	rundll32.exe
PID 1376 wrote to memory of 1312	1376	rundll32.exe	NOTEPAD.EXE
PID 1376 wrote to memory of 1312	1376	rundll32.exe	NOTEPAD.EXE
PID 1376 wrote to memory of 1312	1376	rundll32.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Mail-IspMailGate-1.1011\Makefile.pl
1⤵
- Suspicious use of WriteProcessMemory
PID:768

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Mail-IspMailGate-1.1011\Makefile.pl
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1376

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Mail-IspMailGate-1.1011\Makefile.pl
3⤵
PID:1312

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/768-54-0x000007FEFC521000-0x000007FEFC523000-memory.dmp

Filesize
8KB

Download
memory/1312-86-0x0000000000000000-mapping.dmp

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memory/1376-81-0x0000000000000000-mapping.dmp

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