c52423a7641cb6c932fb45b9827685ab13c2028a783ad930b90560e42db5c1cd

Analysis

max time kernel
295s
max time network
310s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
01-03-2023 16:34

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General

Target

SynapseCrack/bin/SLAgent.dll
Size

6.0MB
MD5

9b248dfff1d2b73fd639324741fe2e08
SHA1

e82684cd6858a6712eff69ace1707b3bcd464105
SHA256

39943c30732988289ca346902f007a72124bd98b82e08b0b9739241cdab4018e
SHA512

56784a895f113088e3c92ccd96f354473e5d849fb9d0798868ff5e9477f60854e8bc7c9759c63417c9298f8702abab266722439b445977c6e940da393b8b696c
SSDEEP

98304:whgYUp+QvBY2uccY07B1nG9CHvaxFNErtcKXc17TEBT0VBTFX3NwwJqOft:w2j8YCRGEP0iOvuT0FXKwt

Score

9^/10

evasion trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	rundll32.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

324 2744 WerFault.exe rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

pid	pid_target	process	target process
324	2744	WerFault.exe	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2708 wrote to memory of 2744	2708	rundll32.exe	rundll32.exe
PID 2708 wrote to memory of 2744	2708	rundll32.exe	rundll32.exe
PID 2708 wrote to memory of 2744	2708	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SynapseCrack\bin\SLAgent.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2708

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\SynapseCrack\bin\SLAgent.dll,#1
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 660
3⤵
- Program crash
PID:324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2744 -ip 2744
1⤵
PID:2252

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2744-133-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-134-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-135-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-136-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-137-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-138-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-139-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download
memory/2744-140-0x0000000073D00000-0x0000000074C26000-memory.dmp

Filesize
15.1MB

Download