96349b4ca999a16f0e3b2159c41d25685e3dca999322b3a29b25369a24f63ed1

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
23-03-2023 18:19

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General

Target

scripts/sirius.lua.example
Size

468B
MD5

1fdd7bce4f24c51ec8267d7fe65b265e
SHA1

4f247776830fb30cf816f227f13d3645b8d3aa6d
SHA256

d331a1344d7354019fdeb564a21f95f85f26458f91aa93d7af58affa9728cb1d
SHA512

4bf9c85600dcab2ff532ef5f459c270d3197ea5a9d46677b4f7f1e0d2e3b3454bc5ba1f64bcb732448cbe37a71a2112511f46166ec4ba0f3db1ca14d4f685bb4

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 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.example\ = "example_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\example_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000_CLASSES\.example	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1812 AcroRd32.exe
1812 AcroRd32.exe
1812 AcroRd32.exe

pid	process
1812	AcroRd32.exe
1812	AcroRd32.exe
1812	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1312 wrote to memory of 1496	1312	cmd.exe	rundll32.exe
PID 1312 wrote to memory of 1496	1312	cmd.exe	rundll32.exe
PID 1312 wrote to memory of 1496	1312	cmd.exe	rundll32.exe
PID 1496 wrote to memory of 1812	1496	rundll32.exe	AcroRd32.exe
PID 1496 wrote to memory of 1812	1496	rundll32.exe	AcroRd32.exe
PID 1496 wrote to memory of 1812	1496	rundll32.exe	AcroRd32.exe
PID 1496 wrote to memory of 1812	1496	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\scripts\sirius.lua.example
1⤵
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\scripts\sirius.lua.example
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1496

C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
"C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\scripts\sirius.lua.example"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1812

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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