Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-05-2024 09:03

General

  • Target

    33ce258b07afea582cc317a398b8770c_JaffaCakes118.exe

  • Size

    488KB

  • MD5

    33ce258b07afea582cc317a398b8770c

  • SHA1

    9a81235b698e5477847280626b729f5347ed2585

  • SHA256

    39f9d2856a3b52e03ecb1c72605afcd0fce0bf5bacc047a0d7d07e8e9edc2065

  • SHA512

    4fbd58e79881313b8c29ccafd9ef7c479e9bbc427869a44981bc4077bd81ed1532c5bcb679e8973470833e18dc5c81a54c69d958030f31f053e92f35a6d2ad66

  • SSDEEP

    12288:ayJgDWpL20Rr3oPm1PC8CcxZsfi8H8fxQpwW2R7NoBE:aAgDWWm1HCX9cz1dNoS

Malware Config

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Extracted

Family

quasar

Version

2.1.0.0

Botnet

awtes

C2

193.161.193.99:25334

Mutex

VNM_MUTEX_kCeYnA1EuESMOTFzJZ

Attributes
  • encryption_key

    mUjLzgxM95Q9fARNfgET

  • install_name

    _isdel.exe

  • log_directory

    SetupDir

  • reconnect_delay

    3000

  • startup_key

    _isdel

  • subdirectory

    Shield

Signatures

  • Contains code to disable Windows Defender 10 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 10 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 5 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33ce258b07afea582cc317a398b8770c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\33ce258b07afea582cc317a398b8770c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3536
    • \??\c:\windows\SysWOW64\cmstp.exe
      "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\fnl0bpbf.inf
      2⤵
        PID:720
    • C:\Windows\SysWOW64\DllHost.exe
      C:\Windows\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:2376
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c start C:\Windows\temp\dvljkxja.exe
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1444
        • C:\Windows\temp\dvljkxja.exe
          C:\Windows\temp\dvljkxja.exe
          3⤵
          • Modifies Windows Defender Real-time Protection settings
          • Checks computer location settings
          • Executes dropped EXE
          • Windows security modification
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2252
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks" /create /tn "_isdel" /sc ONLOGON /tr "C:\Windows\temp\dvljkxja.exe" /rl HIGHEST /f
            4⤵
            • Creates scheduled task(s)
            PID:3188
          • C:\Windows\SysWOW64\Shield\_isdel.exe
            "C:\Windows\SysWOW64\Shield\_isdel.exe"
            4⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:5056
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "_isdel" /sc ONLOGON /tr "C:\Windows\SysWOW64\Shield\_isdel.exe" /rl HIGHEST /f
              5⤵
              • Creates scheduled task(s)
              PID:1568
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "powershell" Get-MpPreference -verbose
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1492
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:1236
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
              5⤵
                PID:116
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\Tm3nLkMTPSPy.bat" "
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2140
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                5⤵
                  PID:540
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 10 localhost
                  5⤵
                  • Runs ping.exe
                  PID:3828
                • C:\Windows\temp\dvljkxja.exe
                  "C:\Windows\temp\dvljkxja.exe"
                  5⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2968
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /IM cmstp.exe /F
            2⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:1228

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\dvljkxja.exe.log

          Filesize

          1KB

          MD5

          10eab9c2684febb5327b6976f2047587

          SHA1

          a12ed54146a7f5c4c580416aecb899549712449e

          SHA256

          f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

          SHA512

          7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

        • C:\Users\Admin\AppData\Local\Temp\Tm3nLkMTPSPy.bat

          Filesize

          187B

          MD5

          9ae763b911cfc5a4df06d9917a461006

          SHA1

          0d39b3c3b6cc2304dc7cd1b578bbbff4db7fb283

          SHA256

          abe5b3f69f4066f3a9146c5fdf36096d21021dd39b745d7430d64e12cbcf197c

          SHA512

          a5676d87b430a246d8b51643346b069c86cce9d3477474b173dcde8ddc2ca0de54b125352ed882d2ae49808a4845a6ab4e9ddeee8f1b255635a58d76dbf4d33d

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qeg515eh.kpw.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Windows\temp\dvljkxja.exe

          Filesize

          535KB

          MD5

          bda9d685fbd2a365b038dd46e13cd270

          SHA1

          feb414e6c698fc4764bbb00ed71c3f210021e33a

          SHA256

          ea7248f135df4164ea025f6bbda2a48e3a02d992cadaaa43b737264463268c14

          SHA512

          c0d56be6d9418fde56fc85d320b45d087c59604fba0b2fb65045d3fa97176c35628d4132b065601faf2f446044e42a39676c0c950bc92df4ea3f88bd6803b241

        • C:\Windows\temp\fnl0bpbf.inf

          Filesize

          606B

          MD5

          8728c620d1610ec5270bd46ab1b15972

          SHA1

          2d73288dfe17c3bc35f5091b1f489066a34f08f6

          SHA256

          06be5f77be4c3c3b7c81e7619a5971786c941456755e393218bc270963031e43

          SHA512

          1bff2cf5aaa2b575fbc576b45685e8a8cb489bd9d81e40a979e86f271503a649b50aca85ab7b6bcfaf87f42fe3d924c8250117a3d8335a8788808cc1a9593ee0

        • memory/1492-86-0x0000000007780000-0x0000000007823000-memory.dmp

          Filesize

          652KB

        • memory/1492-93-0x0000000007AF0000-0x0000000007B04000-memory.dmp

          Filesize

          80KB

        • memory/1492-91-0x0000000007AB0000-0x0000000007AC1000-memory.dmp

          Filesize

          68KB

        • memory/1492-90-0x0000000007B30000-0x0000000007BC6000-memory.dmp

          Filesize

          600KB

        • memory/1492-89-0x0000000007920000-0x000000000792A000-memory.dmp

          Filesize

          40KB

        • memory/1492-87-0x0000000007EF0000-0x000000000856A000-memory.dmp

          Filesize

          6.5MB

        • memory/1492-88-0x00000000078B0000-0x00000000078CA000-memory.dmp

          Filesize

          104KB

        • memory/1492-74-0x0000000007740000-0x0000000007772000-memory.dmp

          Filesize

          200KB

        • memory/1492-75-0x000000006FE30000-0x000000006FE7C000-memory.dmp

          Filesize

          304KB

        • memory/1492-95-0x0000000007BD0000-0x0000000007BD8000-memory.dmp

          Filesize

          32KB

        • memory/1492-85-0x0000000006B60000-0x0000000006B7E000-memory.dmp

          Filesize

          120KB

        • memory/1492-92-0x0000000007AE0000-0x0000000007AEE000-memory.dmp

          Filesize

          56KB

        • memory/1492-72-0x0000000006620000-0x000000000666C000-memory.dmp

          Filesize

          304KB

        • memory/1492-71-0x0000000006590000-0x00000000065AE000-memory.dmp

          Filesize

          120KB

        • memory/1492-94-0x0000000007BF0000-0x0000000007C0A000-memory.dmp

          Filesize

          104KB

        • memory/1492-70-0x0000000005FE0000-0x0000000006334000-memory.dmp

          Filesize

          3.3MB

        • memory/1492-60-0x0000000005CD0000-0x0000000005D36000-memory.dmp

          Filesize

          408KB

        • memory/1492-59-0x00000000054D0000-0x00000000054F2000-memory.dmp

          Filesize

          136KB

        • memory/1492-58-0x00000000056A0000-0x0000000005CC8000-memory.dmp

          Filesize

          6.2MB

        • memory/1492-57-0x0000000002C60000-0x0000000002C96000-memory.dmp

          Filesize

          216KB

        • memory/2252-51-0x0000000006220000-0x000000000625C000-memory.dmp

          Filesize

          240KB

        • memory/2252-50-0x0000000005CE0000-0x0000000005CF2000-memory.dmp

          Filesize

          72KB

        • memory/2252-35-0x0000000000670000-0x00000000006FC000-memory.dmp

          Filesize

          560KB

        • memory/2252-49-0x00000000050D0000-0x0000000005136000-memory.dmp

          Filesize

          408KB

        • memory/3536-19-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-24-0x0000000075C20000-0x0000000075E35000-memory.dmp

          Filesize

          2.1MB

        • memory/3536-34-0x0000000075190000-0x00000000751E2000-memory.dmp

          Filesize

          328KB

        • memory/3536-41-0x00000000749D0000-0x00000000749D8000-memory.dmp

          Filesize

          32KB

        • memory/3536-40-0x00000000749E0000-0x00000000749EF000-memory.dmp

          Filesize

          60KB

        • memory/3536-39-0x00000000749F0000-0x0000000074A7D000-memory.dmp

          Filesize

          564KB

        • memory/3536-38-0x00000000757E0000-0x0000000075825000-memory.dmp

          Filesize

          276KB

        • memory/3536-37-0x0000000076000000-0x0000000076096000-memory.dmp

          Filesize

          600KB

        • memory/3536-42-0x0000000074220000-0x00000000749D0000-memory.dmp

          Filesize

          7.7MB

        • memory/3536-47-0x00000000755C0000-0x00000000755D9000-memory.dmp

          Filesize

          100KB

        • memory/3536-48-0x0000000000402000-0x0000000000489000-memory.dmp

          Filesize

          540KB

        • memory/3536-44-0x0000000074150000-0x00000000741FB000-memory.dmp

          Filesize

          684KB

        • memory/3536-46-0x0000000072CB0000-0x0000000072D39000-memory.dmp

          Filesize

          548KB

        • memory/3536-45-0x0000000075420000-0x0000000075503000-memory.dmp

          Filesize

          908KB

        • memory/3536-43-0x0000000074200000-0x0000000074214000-memory.dmp

          Filesize

          80KB

        • memory/3536-30-0x0000000076E90000-0x0000000077443000-memory.dmp

          Filesize

          5.7MB

        • memory/3536-28-0x0000000076890000-0x000000007694F000-memory.dmp

          Filesize

          764KB

        • memory/3536-29-0x0000000075A60000-0x0000000075B1F000-memory.dmp

          Filesize

          764KB

        • memory/3536-23-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-25-0x0000000076950000-0x0000000076974000-memory.dmp

          Filesize

          144KB

        • memory/3536-27-0x0000000075830000-0x0000000075950000-memory.dmp

          Filesize

          1.1MB

        • memory/3536-36-0x00000000765B0000-0x0000000076831000-memory.dmp

          Filesize

          2.5MB

        • memory/3536-26-0x0000000075BA0000-0x0000000075C1B000-memory.dmp

          Filesize

          492KB

        • memory/3536-22-0x00000000022B0000-0x00000000022F7000-memory.dmp

          Filesize

          284KB

        • memory/3536-20-0x0000000002A30000-0x0000000002A3A000-memory.dmp

          Filesize

          40KB

        • memory/3536-1-0x00000000022B0000-0x00000000022F7000-memory.dmp

          Filesize

          284KB

        • memory/3536-15-0x0000000076E90000-0x0000000077443000-memory.dmp

          Filesize

          5.7MB

        • memory/3536-14-0x0000000005300000-0x0000000005392000-memory.dmp

          Filesize

          584KB

        • memory/3536-13-0x0000000004D50000-0x00000000052F4000-memory.dmp

          Filesize

          5.6MB

        • memory/3536-12-0x0000000072CB0000-0x0000000072D39000-memory.dmp

          Filesize

          548KB

        • memory/3536-10-0x0000000075420000-0x0000000075503000-memory.dmp

          Filesize

          908KB

        • memory/3536-11-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-8-0x00000000765B0000-0x0000000076831000-memory.dmp

          Filesize

          2.5MB

        • memory/3536-9-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-7-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-6-0x0000000075C20000-0x0000000075E35000-memory.dmp

          Filesize

          2.1MB

        • memory/3536-5-0x0000000000402000-0x0000000000489000-memory.dmp

          Filesize

          540KB

        • memory/3536-3-0x0000000000590000-0x0000000000591000-memory.dmp

          Filesize

          4KB

        • memory/3536-2-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3536-4-0x00000000022B0000-0x00000000022F7000-memory.dmp

          Filesize

          284KB

        • memory/3536-0-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB