Overview

overview

10

Static

static

7

Emiditor.exe

windows7-x64

9

Emiditor.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    182s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 18:12

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General

  • Target

    Emiditor.exe

  • Size

    8.1MB

  • MD5

    e08805d6085d6402dcaeb253e4375a09

  • SHA1

    2c79a1203c135aa1a7d5fbed566c94983278b40c

  • SHA256

    b559413c43d76b67e8b068c842a0a615b04d6d687be860e18da1adc43dfe5b5e

  • SHA512

    517d723f46c11a10eb303d655ffca77b1bc3f863450208e659cfea70276f15a7d921d52c04597d035faebb7278e66ff55bbb45b451568f11bc176650bd149db9

  • SSDEEP

    98304:iFBz9bmxmtOfP7TI/OKIdSOwSmGrjvvLYq5dkcDNckgHDJHZt:qBzQxmtOfzsWKgwS1jvvH5uFHn

Score
10/10
arrowratclientevasionpersistenceratthemidatrojan

Malware Config

Extracted

Family

arrowrat

Botnet

Client

C2

65.108.204.97:1337

Mutex

PreIzXewwN

Signatures

  • ArrowRat

    Remote access tool with various capabilities first seen in late 2021.

    ratarrowrat
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 22 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 53 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of FindShellTrayWindow 49 IoCs
  • Suspicious use of SendNotifyMessage 21 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Emiditor.exe
    "C:\Users\Admin\AppData\Local\Temp\Emiditor.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        3⤵
        • Modifies Installed Components in the registry
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2192
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe" Client 65.108.204.97 1337 PreIzXewwN
        3⤵
          PID:3768
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1956
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
      • Enumerates system info in registry
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4364

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1132-143-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

      Filesize

      2.0MB

      Download

    • memory/1132-133-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

      Filesize

      2.0MB

      Download

    • memory/1132-134-0x0000000000D70000-0x0000000001590000-memory.dmp

      Filesize

      8.1MB

      Download

    • memory/1132-135-0x0000000000D70000-0x0000000001590000-memory.dmp

      Filesize

      8.1MB

      Download

    • memory/1132-136-0x00007FFB80240000-0x00007FFB80D01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1132-137-0x0000000000D70000-0x0000000001590000-memory.dmp

      Filesize

      8.1MB

      Download

    • memory/1132-138-0x00007FFB9E910000-0x00007FFB9EB05000-memory.dmp

      Filesize

      2.0MB

      Download

    • memory/1132-139-0x00007FFB80240000-0x00007FFB80D01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1132-132-0x0000000000D70000-0x0000000001590000-memory.dmp

      Filesize

      8.1MB

      Download

    • memory/1132-144-0x00007FFB80240000-0x00007FFB80D01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1132-142-0x0000000000D70000-0x0000000001590000-memory.dmp

      Filesize

      8.1MB

      Download

    • memory/2092-146-0x0000000005910000-0x00000000059AC000-memory.dmp

      Filesize

      624KB

      Download

    • memory/2092-150-0x0000000005B60000-0x0000000005BF2000-memory.dmp

      Filesize

      584KB

      Download

    • memory/2092-145-0x0000000005DF0000-0x0000000006394000-memory.dmp

      Filesize

      5.6MB

      Download

    • memory/2092-140-0x0000000000400000-0x000000000042C000-memory.dmp

      Filesize

      176KB

      Download

    • memory/2092-151-0x0000000005B50000-0x0000000005B5A000-memory.dmp

      Filesize

      40KB

      Download

    • memory/3768-152-0x0000000005F70000-0x0000000005FD6000-memory.dmp

      Filesize

      408KB

      Download

    • memory/3768-149-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

      Download

    • memory/3768-153-0x0000000006270000-0x00000000062C0000-memory.dmp

      Filesize

      320KB

      Download

    • memory/4364-163-0x00000257E1380000-0x00000257E13A0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4364-165-0x00000257E13C0000-0x00000257E13E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4364-167-0x00000257E20C0000-0x00000257E20E0000-memory.dmp

      Filesize

      128KB

      Download

    • memory/4364-172-0x00000257E22FC000-0x00000257E22FF000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4364-174-0x00000257E22FC000-0x00000257E22FF000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4364-173-0x00000257E22FC000-0x00000257E22FF000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4364-175-0x00000257E22FC000-0x00000257E22FF000-memory.dmp

      Filesize

      12KB

      Download

    • memory/4364-177-0x00000257F6CD0000-0x00000257F6CD8000-memory.dmp

      Filesize

      32KB

      Download