Overview

overview

10

Static

static

HEUR-Troja...a8.exe

windows7-x64

10

HEUR-Troja...a8.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-01-2023 04:16

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General

  • Target

    HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe

  • Size

    2MB

  • MD5

    f2aa0a939eb31b64e7f57c97dce7298a

  • SHA1

    c0eefb77a322c4fcdd066779e45af74d5470eebf

  • SHA256

    e026bc9a0b7ac31a86cdbbd88e2b2be5236ba81b469723007c8b3c1d9461198f

  • SHA512

    7c7cd359b4d42be3607acc2188e0bd77964ec5324ccac8fc570be0c6024b54ff61ad514bdd767549f16a5aef7b11950235313c715720a1b0cd0d89f8ad1a5dee

  • SSDEEP

    49152:Eg/2ozbzXnm3jHSdJWSa+J9dmcQC+/qq+7aqf9fvgS+7HYv1/omI:Jl/3C0Wf+JqcQ7yB7aqZgS+Lyk

Score
10/10
nullmixerprivateloadersmokeloadervidar933aspackv2backdoordropperevasionloaderspywarestealertrojan

Malware Config

Extracted

Family

nullmixer

C2

http://sokiran.xyz/

Extracted

Family

vidar

Version

39.7

Botnet

933

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    933

Signatures

  • Detects Smokeloader packer 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 7 IoCs
    evasiontrojan
  • NullMixer

    NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.

    droppernullmixer
  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

    loaderprivateloader
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • Vidar Stealer 4 IoCs
    stealer
  • ASPack v2.12-2.42 14 IoCs

    Detects executables packed with ASPack v2.12-2.42

    aspackv2
  • Executes dropped EXE 10 IoCs
  • Loads dropped DLL 46 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Unexpected DNS network traffic destination 2 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies registry class 8 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    PID:464
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs
      Suspicious use of NtCreateUserProcessOtherParentProcess
      Suspicious use of SetThreadContext
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:860
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k SystemNetworkService
      Checks processor information in registry
      Modifies data under HKEY_USERS
      Modifies registry class
      PID:588
  • C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan.Win32.Crypt.gen-e026bc9a0b7ac31a8.exe"
    Loads dropped DLL
    Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:892
      • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\setup_install.exe
        "C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\setup_install.exe"
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_1.exe
          Loads dropped DLL
          Suspicious use of WriteProcessMemory
          PID:1364
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_1.exe
            sonia_1.exe
            Executes dropped EXE
            Loads dropped DLL
            PID:1264
            • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_1.exe
              "C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_1.exe" -a
              Executes dropped EXE
              Loads dropped DLL
              PID:664
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_2.exe
          Loads dropped DLL
          Suspicious use of WriteProcessMemory
          PID:1984
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_2.exe
            sonia_2.exe
            Executes dropped EXE
            Loads dropped DLL
            Checks SCSI registry key(s)
            Suspicious behavior: EnumeratesProcesses
            Suspicious behavior: MapViewOfSection
            PID:1644
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_3.exe
          Loads dropped DLL
          PID:1988
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_3.exe
            sonia_3.exe
            Executes dropped EXE
            Loads dropped DLL
            Modifies system certificate store
            PID:1212
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_5.exe
          Loads dropped DLL
          PID:964
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_5.exe
            sonia_5.exe
            Executes dropped EXE
            Suspicious use of AdjustPrivilegeToken
            PID:924
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_6.exe
          Loads dropped DLL
          PID:1652
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_6.exe
            sonia_6.exe
            Modifies Windows Defender Real-time Protection settings
            Executes dropped EXE
            Loads dropped DLL
            Modifies system certificate store
            PID:1680
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_7.exe
          Loads dropped DLL
          PID:984
          • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_7.exe
            sonia_7.exe
            Executes dropped EXE
            PID:836
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c sonia_4.exe
          Loads dropped DLL
          PID:1332
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1380 -s 412
          Loads dropped DLL
          Program crash
          PID:1872
  • C:\Users\Admin\AppData\Local\Temp\7zSC73B7F0C\sonia_4.exe
    sonia_4.exe
    Executes dropped EXE
    Modifies system certificate store
    Suspicious use of AdjustPrivilegeToken
    PID:1356
  • C:\Windows\system32\rUNdlL32.eXe
    rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
    Process spawned unexpected child process
    PID:1888
    • C:\Windows\SysWOW64\rundll32.exe
      rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
      Loads dropped DLL
      Modifies registry class
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1824

Network

MITRE ATT&CK Matrix