Resubmissions

11/04/2026, 02:20

260411-csmz7se15n10

11/04/2026, 02:16

260411-cqgqeae12l10

30/09/2025, 01:55

250930-cb4xds1ky710

30/09/2025, 00:01

250930-aa4twszjs310

General

  • Target
    quarantine.rar
  • Size 35.5MB
  • Sample250930-cb4xds1ky7
  • SHA256 5cd5b457dec50b2fbca33e0cd340035ac272b47d120e85d6cd5ea7afaf503694
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 15.6

Botnet
  • 8abde2dd70fb74562671bec21e396c1fn

C2
  • https://steamcommunity.com/profiles/76561198783900411

  • https://telegram.me/rif0lm

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:144.0) Gecko/20100101 Firefox/144.0

Extracted

Family
  • stealc

Botnet
  • tr1pernn

C2
  • http://178.16.54.175

Attributes
  • url_path

    /e9762ff07e084dbb.php

rc4.plain

Extracted

Family
  • stealc

Botnet
  • bestworker7666184463

C2
  • http://178.16.54.175

Attributes
  • url_path

    /e9762ff07e084dbb.php

rc4.plain

Targets

    • Target
      0EznZvf.exe
    • Size 4.8MB
    • SHA256 5b9f13a92a778876650781c21ae46bac51f5df203d13a1a958b7c68dd50b7d26
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Target
      2f34b5X.exe
    • Size 2.3MB
    • SHA256 2dd15d74151531c7156a20297429cd371a603b458326d7972b2a95fed0e37ad4
    • MD5 SHA1 SHA512 SSDEEP
    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Target
      EioNXAE.msi
    • Size 14.7MB
    • SHA256 ddc99d20bd11e08d73f5ce056ee868a46194c7bcada8654045740dbfa943934f
    • MD5 SHA1 SHA512 SSDEEP
    • Binary is signed using a ConnectWise certificate revoked for key compromise.

    • Sets service image path in registry

    • ConnectWise ScreenConnect remote access tool

      ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Drops file in System32 directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Target
      O6rSznO.exe
    • Size 9.2MB
    • SHA256 a34839575f5c229fc83227e0f48fc0eda198a8a17aea8a46d63fa75971d6af2c
    • MD5 SHA1 SHA512 SSDEEP
    • Stealc

      Stealc is an infostealer written in C++.

    • Stealc family

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Target
      OGm4PbD.exe
    • Size 8.6MB
    • SHA256 d3e31c5dfea816f01a4cd5cb415ac2223bd1f18bea2178861162387d1b6efb10
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Deletes itself

    • Target
      QoxOWld.exe
    • Size 426KB
    • SHA256 84053411fb0297305b893d8786ea90d828a648608bfe6c827fde518f2e67c7f5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      clp1.exe
    • Size 285KB
    • SHA256 07bbff7609b94e8853575e3a6803f33435e8d3ede7d96edd83237b583b76b716
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Executes dropped EXE

    • Adds Run key to start application

    • Target
      clp2.exe
    • Size 2.5MB
    • SHA256 1cb6e45260ceb3e87ed70186e68a76387c87f02fafdb1ea1a643ac396f4ebeb6
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Executes dropped EXE

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

    • Target
      clp3.exe
    • Size 219KB
    • SHA256 d5028ec38afef94feba1e756701f684e5163c833b706d636c78db0869546a0b4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      random.exe
    • Size 2.1MB
    • SHA256 02fa7b3938307308295d97e268427d7f9e303157c55b9ad5186944687f9361ab
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      vkGsO6Q.exe
    • Size 2.4MB
    • SHA256 da14768bd291ad71f8c10c39c71d3c869e488aeca2bb382d9d393fd0597641d6
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      wpnAjnT.exe
    • Size 1.5MB
    • SHA256 f19e395f6af72b7882f8f6c1603e6d762b9c7dfa088759410b0fbc18c458854b
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

    • Target
      $PLUGINSDIR/nsExec.dll
    • Size 6KB
    • SHA256 8165c7aef7de3d3e0549776535bedc380ad9be7bb85e60ad6436f71528d092af
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      zx.exe
    • Size 5.6MB
    • SHA256 4bbfdd9676fecb9b771efa9d6edd7756e6fa88e45b8e73258a52b760c43cd95a
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Loads dropped DLL

MITRE ATT&CK Enterprise v16

Tasks

static1

stealer8abde2dd70fb74562671bec21e396c1fnpyinstallervidarsvcstealer
Score
10/10

behavioral1

defense_evasiondiscoveryransomwarespywarestealer
Score
7/10

behavioral2

discovery
Score
3/10

behavioral3

tr1pernndefense_evasiondiscoverystealcspywarestealerthemidatrojan
Score
10/10

behavioral4

tr1pernndefense_evasiondiscoverystealcspywarestealerthemidatrojan
Score
10/10

behavioral5

backdoordiscoverypersistenceprivilege_escalationransomwareratrevoked_codesign
Score
8/10

behavioral6

backdoordiscoverypersistenceprivilege_escalationransomwareratrevoked_codesign
Score
8/10

behavioral7

bestworker7666184463defense_evasiondiscoverystealcspywarestealerthemidatrojan
Score
10/10

behavioral8

bestworker7666184463defense_evasiondiscoverystealcspywarestealerthemidatrojan
Score
10/10

behavioral9

Score
10/10

behavioral10

Score
10/10

behavioral11

Score
1/10

behavioral12

Score
1/10

behavioral13

persistence
Score
7/10

behavioral14

persistence
Score
7/10

behavioral15

persistence
Score
7/10

behavioral16

persistence
Score
7/10

behavioral17

discovery
Score
3/10

behavioral18

discovery
Score
3/10

behavioral19

defense_evasiondiscoveryexecutionpersistence
Score
8/10

behavioral20

defense_evasiondiscoveryexecutionpersistence
Score
8/10

behavioral21

defense_evasiondiscoverytrojan
Score
10/10

behavioral22

defense_evasiondiscoverytrojan
Score
10/10

behavioral23

discovery
Score
7/10

behavioral24

discovery
Score
7/10

behavioral25

discovery
Score
3/10

behavioral26

discovery
Score
3/10

behavioral27

Score
7/10

behavioral28

Score
7/10