ef7fefcb41d79c824c429819fbe73e6d0186c0586bc5f031debf553cd43edce4

Resubmissions

26-09-2022 15:09

220926-sjlzjscchm 9

05-12-2021 07:55

211205-jscmsscbeq 10

Analysis

max time kernel
143s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2022 15:09

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General

Target

SysLogsService.exe
Size

7.7MB
MD5

0b97fa8b682939e55df2bcfe3d17dba5
SHA1

9d0101a59a1f705d55ab5acb0577ea9a967a6bab
SHA256

ef7fefcb41d79c824c429819fbe73e6d0186c0586bc5f031debf553cd43edce4
SHA512

1d4e414a9abd9b4f317f4ea37fc2a76ee8d3057b5079f654c142ef0b938433d0c52f8620526375eed4b9ac0adceda26484ebad9e63b7c4df5aef272d07620e68
SSDEEP

49152:w8eti2sIHTdUoWj/QPNYtS5Djcdv9TS32PkEh77sD2qz4DfvcbXyWrhIqJwH1iL3:fWiPIZZXaMD8Vm2P572xEqY5Xu

Score

9^/10

evasion themida 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:

SysLogsService.exe

description ioc process

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

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	SysLogsService.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:

SysLogsService.exe

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

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4760-132-0x00007FF730DC0000-0x00007FF731578000-memory.dmp	themida
behavioral2/memory/4760-134-0x00007FF730DC0000-0x00007FF731578000-memory.dmp	themida
behavioral2/memory/4760-135-0x00007FF730DC0000-0x00007FF731578000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

SysLogsService.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SysLogsService.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

SysLogsService.exe

pid process

4760 SysLogsService.exe

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

pid	process
4760	SysLogsService.exe

C:\Users\Admin\AppData\Local\Temp\SysLogsService.exe
"C:\Users\Admin\AppData\Local\Temp\SysLogsService.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4760

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/4760-132-0x00007FF730DC0000-0x00007FF731578000-memory.dmp

Filesize
7.7MB

Download
memory/4760-133-0x00007FFB34B90000-0x00007FFB34D85000-memory.dmp

Filesize
2.0MB

Download
memory/4760-134-0x00007FF730DC0000-0x00007FF731578000-memory.dmp

Filesize
7.7MB

Download
memory/4760-135-0x00007FF730DC0000-0x00007FF731578000-memory.dmp

Filesize
7.7MB

Download
memory/4760-136-0x00007FFB34B90000-0x00007FFB34D85000-memory.dmp

Filesize
2.0MB

Download