Resubmissions

03/07/2024, 16:09

240703-tl9n3ayepb

03/07/2024, 16:04

240703-thygmaycpc10

01/07/2024, 18:12

240701-ws6xvswbkj10

01/07/2024, 18:03

240701-wm5sls1gka10

01/07/2024, 18:03

240701-wm39sa1gjf10

01/07/2024, 18:03

240701-wm2e7avhkj10

01/07/2024, 18:03

240701-wmzxcs1fre10

01/07/2024, 18:02

240701-wmzats1frc10

01/07/2024, 18:02

240701-wmvbwa1fqh10

22/11/2023, 17:02

231122-vkac9adg6410

Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/07/2024, 16:04

General

  • Target
    42f972925508a82236e8533567487761.exe
  • Size 3.7MB
  • Sample240703-thygmaycpc
  • SHA256 8b5b38085f12d51393ed5a481a554074d3c482d53ecd917f2f5dffdf3d2ee138
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • babylonrat

C2
  • sandyclark255.hopto.org

Extracted

Family
  • warzonerat

C2
  • sandyclark255.hopto.org:5200

Extracted

Family
  • darkcomet

Botnet
  • 2020NOV1

C2
  • sandyclark255.hopto.org:35887

Mutex
  • DC_MUTEX-6XT818D

Attributes
  • InstallPath

    excelsl.exe

  • gencode

    n7asq0Dbu7D2

  • install

    true

  • offline_keylogger

    true

  • password

    hhhhhh

  • persistence

    true

  • reg_key

    office

Extracted

Family
  • asyncrat

Version
  • 0.5.6A

C2
  • sandyclark255.hopto.org:6606

  • sandyclark255.hopto.org:8808

  • sandyclark255.hopto.org:7707

Mutex
  • adweqsds56332

Attributes
  • delay

    5

  • install

    true

  • install_file

    prndrvest.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Babylon RAT

    Babylon RAT is remote access trojan written in C++.

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • WarzoneRat, AveMaria

    WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Async RAT payload 2 IoCs
  • Warzone RAT payload 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 21 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 5 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42f972925508a82236e8533567487761.exe
    "C:\Users\Admin\AppData\Local\Temp\42f972925508a82236e8533567487761.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Users\Admin\AppData\Local\Temp\DonKdq8BWj8daM41.exe
      "C:\Users\Admin\AppData\Local\Temp\DonKdq8BWj8daM41.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:1596
      • C:\Windows\svehosts.exe
        "C:\Windows\svehosts.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        PID:3892
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\svehosts.exe" "svehosts.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:3852
    • C:\Users\Admin\AppData\Local\Temp\QyDSW8NVl3ePpAfR.exe
      "C:\Users\Admin\AppData\Local\Temp\QyDSW8NVl3ePpAfR.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2672
      • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
        "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:8
        • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
          "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe" 8
          4⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2556
          • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
            "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3976
    • C:\Users\Admin\AppData\Local\Temp\GOgeIF51dah78xBn.exe
      "C:\Users\Admin\AppData\Local\Temp\GOgeIF51dah78xBn.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4200
      • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
        "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Drops file in Drivers directory
        • Checks computer location settings
        • Executes dropped EXE
        • Adds Run key to start application
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:2536
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
            PID:1528
          • C:\Users\Admin\Documents\excelsl.exe
            "C:\Users\Admin\Documents\excelsl.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3140
            • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
              "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
              5⤵
              • Disables RegEdit via registry modification
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:3480
              • C:\Windows\SysWOW64\notepad.exe
                notepad
                6⤵
                  PID:4168
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 1140
                5⤵
                • Program crash
                PID:3524
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4200 -s 1148
            3⤵
            • Program crash
            PID:1308
        • C:\Users\Admin\AppData\Local\Temp\oBXgVKAbRuKoSQ4A.exe
          "C:\Users\Admin\AppData\Local\Temp\oBXgVKAbRuKoSQ4A.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4860
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'prndrvest"' /tr "'C:\Users\Admin\AppData\Roaming\prndrvest.exe"'
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2932
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp79CF.tmp.bat""
            3⤵
              PID:3316
              • C:\Windows\SysWOW64\timeout.exe
                timeout 3
                4⤵
                • Delays execution with timeout.exe
                PID:1092
              • C:\Users\Admin\AppData\Roaming\prndrvest.exe
                "C:\Users\Admin\AppData\Roaming\prndrvest.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:2812
          • C:\Users\Admin\AppData\Local\Temp\Z33KiU5j5gmh3zfr.exe
            "C:\Users\Admin\AppData\Local\Temp\Z33KiU5j5gmh3zfr.exe"
            2⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2676
            • C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe
              "C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe"
              3⤵
              • Executes dropped EXE
              PID:4460
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 1160
              3⤵
              • Program crash
              PID:380
          • C:\Users\Admin\AppData\Local\Temp\vkFkwTHl4aZC3Krr.exe
            "C:\Users\Admin\AppData\Local\Temp\vkFkwTHl4aZC3Krr.exe"
            2⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3524
            • C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe
              "C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe"
              3⤵
              • Executes dropped EXE
              PID:404
            • C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe
              "C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: GetForegroundWindowSpam
              PID:4476
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3524 -s 1152
              3⤵
              • Program crash
              PID:2160
          • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
            "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
            2⤵
            • Executes dropped EXE
            PID:4540
          • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
            "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
            2⤵
            • Executes dropped EXE
            PID:3228
          • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
            "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
            2⤵
            • Executes dropped EXE
            PID:2024
          • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
            "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
            2⤵
            • Executes dropped EXE
            PID:1196
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3140 -s 1628
            2⤵
            • Program crash
            PID:2892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3140 -ip 3140
          1⤵
            PID:4392
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2676 -ip 2676
            1⤵
              PID:3976
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3524 -ip 3524
              1⤵
                PID:4636
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4200 -ip 4200
                1⤵
                  PID:2824
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3140 -ip 3140
                  1⤵
                    PID:2560

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        excelsl.exe.log

                        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\excelsl.exe.log
                        • Size 400B
                        • SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
                        • MD5 SHA1 SHA512

                        svthost.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
                        • Size 3.7MB
                        • SHA256 8b5b38085f12d51393ed5a481a554074d3c482d53ecd917f2f5dffdf3d2ee138
                        • MD5 SHA1 SHA512 SSDEEP

                        DonKdq8BWj8daM41.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\DonKdq8BWj8daM41.exe
                        • Size 472KB
                        • SHA256 b82b23059e398b39f183ec833d498200029033b0fd3a138b6c2064a6fa3c4b93
                        • MD5 SHA1 SHA512 SSDEEP

                        GOgeIF51dah78xBn.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\GOgeIF51dah78xBn.exe
                        • Size 742KB
                        • SHA256 f9f7b6f7b8c5068f9e29a5b50afca609018c50ffd61929e1b78124f5381868f1
                        • MD5 SHA1 SHA512 SSDEEP

                        QyDSW8NVl3ePpAfR.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\QyDSW8NVl3ePpAfR.exe
                        • Size 801KB
                        • SHA256 7c3615c405f7a11f1c217b9ecd1000cf60a37bca7da1f2d12da21cc110b16b4d
                        • MD5 SHA1 SHA512 SSDEEP

                        Z33KiU5j5gmh3zfr.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\Z33KiU5j5gmh3zfr.exe
                        • Size 366KB
                        • SHA256 309385e6cd68c0dd148905c3147f77383edaf35da9609c0717da7df1a894e3ca
                        • MD5 SHA1 SHA512 SSDEEP

                        oBXgVKAbRuKoSQ4A.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\oBXgVKAbRuKoSQ4A.exe
                        • Size 376KB
                        • SHA256 7bf9b7b25cf1671e5640f8eeac149f9a4e8c9f6c63415f4bd61bccb10ddf8509
                        • MD5 SHA1 SHA512 SSDEEP

                        tmp79CF.tmp.bat

                        • Path C:\Users\Admin\AppData\Local\Temp\tmp79CF.tmp.bat
                        • Size 153B
                        • SHA256 b2a71834247dbeaa2229ae9f09fcbb583418fcfae8373d4f60f3ec4d2e56e3d1
                        • MD5 SHA1 SHA512

                        vkFkwTHl4aZC3Krr.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\vkFkwTHl4aZC3Krr.exe
                        • Size 336KB
                        • SHA256 ec1b56551036963a425f6a0564d75980054e01d251c88eb29c81c1b2182f5727
                        • MD5 SHA1 SHA512 SSDEEP

                        prndrvest.exe

                        • Path C:\Users\Admin\AppData\Roaming\prndrvest.exe
                        • Size 41.4MB
                        • SHA256 78df9394bfee605531e5e9b17471a169645d72b693d0e55075b210650ee329e0
                        • MD5 SHA1 SHA512 SSDEEP

                        memory/8-98-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-115-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-200-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-113-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-116-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-112-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-108-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-103-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-101-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/8-234-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/1196-88-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/1528-138-0x0000000000E60000-0x0000000000E61000-memory.dmp

                        memory/1596-221-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/1596-35-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/1596-36-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/2536-131-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/2536-128-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/2536-133-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/2672-60-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/2672-247-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/2672-67-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/2812-255-0x0000000005AA0000-0x0000000005AB2000-memory.dmp

                        memory/3140-27-0x00000000747C2000-0x00000000747C3000-memory.dmp

                        memory/3140-0-0x00000000747C2000-0x00000000747C3000-memory.dmp

                        memory/3140-1-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/3140-75-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/3140-3-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/3140-93-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/3140-2-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/3480-228-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/3480-230-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/3480-231-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/3480-226-0x0000000000400000-0x00000000004BA000-memory.dmp

                        memory/3976-207-0x0000000000400000-0x00000000004C2000-memory.dmp

                        memory/4168-229-0x0000000000570000-0x0000000000571000-memory.dmp

                        memory/4200-196-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/4200-81-0x00000000747C0000-0x0000000074D71000-memory.dmp

                        memory/4460-111-0x0000000000400000-0x0000000000554000-memory.dmp

                        memory/4460-107-0x0000000000400000-0x0000000000554000-memory.dmp

                        memory/4476-123-0x0000000000400000-0x000000000040F000-memory.dmp

                        memory/4476-121-0x0000000000400000-0x000000000040F000-memory.dmp

                        memory/4860-91-0x00000000098F0000-0x0000000009914000-memory.dmp

                        memory/4860-233-0x0000000009A10000-0x0000000009A76000-memory.dmp

                        memory/4860-84-0x0000000005C40000-0x00000000061E4000-memory.dmp

                        memory/4860-236-0x0000000009D30000-0x0000000009DCC000-memory.dmp

                        memory/4860-87-0x0000000005730000-0x00000000057C2000-memory.dmp

                        memory/4860-90-0x0000000005700000-0x000000000570A000-memory.dmp

                        memory/4860-83-0x0000000000E10000-0x0000000000E74000-memory.dmp

                        memory/4860-195-0x0000000005050000-0x0000000005062000-memory.dmp