1d9af7c6da48e00d634679c064d4ec726c1feb303b2032bd2034c0e5a4626a86

Resubmissions

30-05-2023 17:01

230530-vjmbesag85 9

Analysis

max time kernel
14s
max time network
11s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
30-05-2023 17:01

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General

Target

SeroXen.exe
Size

5.5MB
MD5

e3ea239194c4518d7fc8fb69334168ac
SHA1

473f96fa10a95f63463d38a62a0ae8248702fddf
SHA256

1d9af7c6da48e00d634679c064d4ec726c1feb303b2032bd2034c0e5a4626a86
SHA512

7a7a8d5a02b33ab1b20efb0fba4a9d67ff433684badc4a045ac55a76a11aeac958e70c69b0bf919985fd3729be1e5e568b80b497c6c0b961d7f183f1f6cef1a9
SSDEEP

98304:PJMhcHp5ooEAnHRVN07KgHDpS18DqBRe7qxKfT1J+tNY3LU4rI2qo:eg53HRVu7vHDpS1IqBRU7kCs2q

Score

9^/10

agilenet 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:

SeroXen.exe

description ioc process

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

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

SeroXen.exe

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

Loads dropped DLL 1 IoCs

Processes:

SeroXen.exe

pid process

4628 SeroXen.exe

pid	process
4628	SeroXen.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/4628-133-0x000001C7F5890000-0x000001C7F5E12000-memory.dmp	agile_net

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll	themida
C:\Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll	themida
behavioral1/memory/4628-140-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp	themida
behavioral1/memory/4628-143-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp	themida
behavioral1/memory/4628-145-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

SeroXen.exe

description ioc process

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

Processes:

SeroXen.exe

pid process

4628 SeroXen.exe

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

pid	process
4628	SeroXen.exe

C:\Users\Admin\AppData\Local\Temp\SeroXen.exe
"C:\Users\Admin\AppData\Local\Temp\SeroXen.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:4628

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

C:\Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll
Filesize
3.0MB

MD5
e3bd88b3c3e9b33dfa72c814f8826cff

SHA1
6d220c9eb7ee695f2b9dec261941bed59cac15e4

SHA256
28e9458a43e5d86a341590eaa83d0da18c29fce81f2383d84bda484e049a1796

SHA512
fcb7e384b5bda0f810c4b6190a991bd066eedfc8fc97af9837cda1ba480385c8bc09bd703c1029f9d8d8a3eea3dbc03af97b014b4713a4ceea6ad6ae85b3b6e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\49979061-04bb-41a9-8625-de2d15652f02\AgileDotNetRT64.dll
Filesize
3.0MB

MD5
e3bd88b3c3e9b33dfa72c814f8826cff

SHA1
6d220c9eb7ee695f2b9dec261941bed59cac15e4

SHA256
28e9458a43e5d86a341590eaa83d0da18c29fce81f2383d84bda484e049a1796

SHA512
fcb7e384b5bda0f810c4b6190a991bd066eedfc8fc97af9837cda1ba480385c8bc09bd703c1029f9d8d8a3eea3dbc03af97b014b4713a4ceea6ad6ae85b3b6e9

Download Submit
memory/4628-133-0x000001C7F5890000-0x000001C7F5E12000-memory.dmp

Filesize
5.5MB

Download
memory/4628-140-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp

Filesize
8.4MB

Download
memory/4628-142-0x000001C7F8310000-0x000001C7F8320000-memory.dmp

Filesize
64KB

Download
memory/4628-141-0x00007FFC495E0000-0x00007FFC4972E000-memory.dmp

Filesize
1.3MB

Download
memory/4628-143-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp

Filesize
8.4MB

Download
memory/4628-144-0x000001C7F8310000-0x000001C7F8320000-memory.dmp

Filesize
64KB

Download
memory/4628-145-0x00007FFC45620000-0x00007FFC45E7F000-memory.dmp

Filesize
8.4MB

Download
memory/4628-146-0x000001C7F8310000-0x000001C7F8320000-memory.dmp

Filesize
64KB

Download
memory/4628-147-0x000001C7F8310000-0x000001C7F8320000-memory.dmp

Filesize
64KB

Download