Overview
overview
10Static
static
10SeroXenPTO...to.dll
windows11-21h2-x64
1SeroXenPTO/C5VM.dll
windows11-21h2-x64
1SeroXenPTO...re.dll
windows11-21h2-x64
1SeroXenPTO...ll.dll
windows11-21h2-x64
1SeroXenPTO...ok.dll
windows11-21h2-x64
1SeroXenPTO...ET.dll
windows11-21h2-x64
1SeroXenPTO...im.dll
windows11-21h2-x64
1SeroXenPTO...er.dll
windows11-21h2-x64
1SeroXenPTO...ce.dll
windows11-21h2-x64
1SeroXenPTO...es.dll
windows11-21h2-x64
1SeroXenPTO...ns.dll
windows11-21h2-x64
1SeroXenPTO...rk.dll
windows11-21h2-x64
1SeroXenPTO...db.dll
windows11-21h2-x64
1SeroXenPTO...db.dll
windows11-21h2-x64
1SeroXenPTO...ks.dll
windows11-21h2-x64
1SeroXenPTO...il.dll
windows11-21h2-x64
1SeroXenPTO...at.dll
windows11-21h2-x64
1SeroXenPTO...th.dll
windows11-21h2-x64
1SeroXenPTO...ts.dll
windows11-21h2-x64
1SeroXenPTO...on.dll
windows11-21h2-x64
1SeroXenPTO...et.dll
windows11-21h2-x64
1SeroXenPTO...en.exe
windows11-21h2-x64
10SeroXenPTO...TO.exe
windows11-21h2-x64
1SeroXenPTO...on.dll
windows11-21h2-x64
1SeroXenPTO...le.dll
windows11-21h2-x64
1SeroXenPTO...ib.dll
windows11-21h2-x64
1SeroXenPTO/dnlib.dll
windows11-21h2-x64
1SeroXenPTO...et.dll
windows11-21h2-x64
1Analysis
-
max time kernel
145s -
max time network
151s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
26-12-2024 20:55
Behavioral task
behavioral1
Sample
SeroXenPTO/BouncyCastle.Crypto.dll
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
SeroXenPTO/C5VM.dll
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
SeroXenPTO/Cake.Core.dll
Resource
win11-20241007-en
Behavioral task
behavioral4
Sample
SeroXenPTO/Cake.Powershell.dll
Resource
win11-20241007-en
Behavioral task
behavioral5
Sample
SeroXenPTO/Gma.System.MouseKeyHook.dll
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
SeroXenPTO/Logic.NET.dll
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
SeroXenPTO/Microsoft.VisualStudio.CodeCoverage.Shim.dll
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
SeroXenPTO/Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
SeroXenPTO/Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.Interface.dll
Resource
win11-20241007-en
Behavioral task
behavioral10
Sample
SeroXenPTO/Microsoft.VisualStudio.TestPlatform.MSTestAdapter.PlatformServices.dll
Resource
win11-20241007-en
Behavioral task
behavioral11
Sample
SeroXenPTO/Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll
Resource
win11-20241007-en
Behavioral task
behavioral12
Sample
SeroXenPTO/Microsoft.VisualStudio.TestPlatform.TestFramework.dll
Resource
win11-20241007-en
Behavioral task
behavioral13
Sample
SeroXenPTO/Mono.Cecil.Mdb.dll
Resource
win11-20241023-en
Behavioral task
behavioral14
Sample
SeroXenPTO/Mono.Cecil.Pdb.dll
Resource
win11-20241007-en
Behavioral task
behavioral15
Sample
SeroXenPTO/Mono.Cecil.Rocks.dll
Resource
win11-20241007-en
Behavioral task
behavioral16
Sample
SeroXenPTO/Mono.Cecil.dll
Resource
win11-20241007-en
Behavioral task
behavioral17
Sample
SeroXenPTO/Open.Nat.dll
Resource
win11-20241007-en
Behavioral task
behavioral18
Sample
SeroXenPTO/PTOAuth.dll
Resource
win11-20241007-en
Behavioral task
behavioral19
Sample
SeroXenPTO/Quasar.Common.Tests.dll
Resource
win11-20241007-en
Behavioral task
behavioral20
Sample
SeroXenPTO/Quasar.Common.dll
Resource
win11-20241007-en
Behavioral task
behavioral21
Sample
SeroXenPTO/Renci.SshNet.dll
Resource
win11-20241007-en
Behavioral task
behavioral22
Sample
SeroXenPTO/SeroXen.exe
Resource
win11-20241007-en
Behavioral task
behavioral23
Sample
SeroXenPTO/SeroXenPTO.exe
Resource
win11-20241007-en
Behavioral task
behavioral24
Sample
SeroXenPTO/System.Management.Automation.dll
Resource
win11-20241007-en
Behavioral task
behavioral25
Sample
SeroXenPTO/System.ValueTuple.dll
Resource
win11-20241007-en
Behavioral task
behavioral26
Sample
SeroXenPTO/Vestris.ResourceLib.dll
Resource
win11-20241007-en
Behavioral task
behavioral27
Sample
SeroXenPTO/dnlib.dll
Resource
win11-20241007-en
Behavioral task
behavioral28
Sample
SeroXenPTO/protobuf-net.dll
Resource
win11-20241007-en
General
-
Target
SeroXenPTO/SeroXen.exe
-
Size
38.6MB
-
MD5
89a7d73bad622bbd0b9dfb8e80f8c42e
-
SHA1
f1ac96f1d956254c6b2209f457355da89c987d8f
-
SHA256
7cb37cd110a388998ce95819da915446331f614a5da8d5cfeed953812ada23f1
-
SHA512
760e8e7087ac107ec9e12caaa26968142ddd62ddd82d0e6abfcaa35de8f03917323e97147e72b63fb3dca27756726f4f8fa68f89f9e5acc70898c4c4b0a7bdd0
-
SSDEEP
786432:anvEMOXrlkmTo5oJqpP2jXHUOqL4UoncLbd+fMY4RPHpHCpqBa4CE:anMMIrX05LsT0OqL4Uocd+fM/PlCpqcE
Malware Config
Signatures
-
Quasar family
-
Quasar payload 2 IoCs
resource yara_rule behavioral22/memory/892-1-0x0000019DEF760000-0x0000019DF1DF4000-memory.dmp family_quasar behavioral22/memory/892-2-0x0000019DF3A30000-0x0000019DF3A46000-memory.dmp family_quasar -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion SeroXen.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion SeroXen.exe -
Loads dropped DLL 1 IoCs
pid Process 892 SeroXen.exe -
resource yara_rule behavioral22/files/0x001900000002ab1f-8.dat themida behavioral22/memory/892-11-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida behavioral22/memory/892-12-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida behavioral22/memory/892-24-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida behavioral22/memory/892-28-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida behavioral22/memory/892-30-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida behavioral22/memory/892-31-0x00007FF990510000-0x00007FF990D6F000-memory.dmp themida -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SeroXen.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 892 SeroXen.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2644 CredentialUIBroker.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\SeroXenPTO\SeroXen.exe"C:\Users\Admin\AppData\Local\Temp\SeroXenPTO\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:892
-
C:\Windows\System32\CredentialUIBroker.exe"C:\Windows\System32\CredentialUIBroker.exe" NonAppContainerFailedMip -Embedding1⤵
- Suspicious use of SetWindowsHookEx
PID:2644
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
-
Filesize
3.0MB
MD5e3bd88b3c3e9b33dfa72c814f8826cff
SHA16d220c9eb7ee695f2b9dec261941bed59cac15e4
SHA25628e9458a43e5d86a341590eaa83d0da18c29fce81f2383d84bda484e049a1796
SHA512fcb7e384b5bda0f810c4b6190a991bd066eedfc8fc97af9837cda1ba480385c8bc09bd703c1029f9d8d8a3eea3dbc03af97b014b4713a4ceea6ad6ae85b3b6e9