Resubmissions

19-01-2021 19:24

210119-s26yznnqsn 10

19-11-2020 13:14

201119-s41ec6lt86 10

Analysis

  • max time kernel
    1802s
  • max time network
    1814s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    19-11-2020 13:14

General

  • Target

    42f972925508a82236e8533567487761(1).exe

Malware Config

Extracted

Family

asyncrat

Version

0.5.6A

C2

sandyclark255.hopto.org:6606

sandyclark255.hopto.org:8808

sandyclark255.hopto.org:7707

Attributes
  • aes_key

    DStgwPf5qCYAcWWcPg3CaZBkDbYF3HQo

  • anti_detection

    true

  • autorun

    true

  • bdos

    false

  • delay

  • host

    sandyclark255.hopto.org

  • hwid

  • install_file

  • install_folder

    %AppData%

  • mutex

    adweqsds56332

  • pastebin_config

    null

  • port

    6606,8808,7707

  • version

    0.5.6A

aes.plain

Extracted

Family

warzonerat

C2

sandyclark255.hopto.org:5200

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • 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 1 IoCs
  • Warzone RAT Payload 3 IoCs
  • Disables RegEdit via registry modification
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 20 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 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). Likely ransomware behaviour.

  • Program crash 5 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 1 IoCs
  • 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(1).exe
    "C:\Users\Admin\AppData\Local\Temp\42f972925508a82236e8533567487761(1).exe"
    Suspicious use of SetThreadContext
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:4708
    • C:\Users\Admin\AppData\Local\Temp\obEaxLAjEnUh3zNn.exe
      "C:\Users\Admin\AppData\Local\Temp\obEaxLAjEnUh3zNn.exe"
      Executes dropped EXE
      Drops file in Windows directory
      Suspicious use of AdjustPrivilegeToken
      PID:4244
      • C:\Windows\svehosts.exe
        "C:\Windows\svehosts.exe"
        Executes dropped EXE
        Drops startup file
        Adds Run key to start application
        Suspicious use of AdjustPrivilegeToken
        PID:2788
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\svehosts.exe" "svehosts.exe" ENABLE
          PID:748
    • C:\Users\Admin\AppData\Local\Temp\3GmXcp07B5tOvjAw.exe
      "C:\Users\Admin\AppData\Local\Temp\3GmXcp07B5tOvjAw.exe"
      Modifies WinLogon for persistence
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1864
      • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
        "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
        Executes dropped EXE
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        PID:992
        • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
          "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe" 992
          Modifies WinLogon for persistence
          Executes dropped EXE
          Suspicious use of SetThreadContext
          PID:4092
          • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
            "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
            Executes dropped EXE
            PID:1392
          • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
            "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
            Executes dropped EXE
            PID:1380
    • C:\Users\Admin\AppData\Local\Temp\ykoy3tFjxKJZFVGI.exe
      "C:\Users\Admin\AppData\Local\Temp\ykoy3tFjxKJZFVGI.exe"
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3152
      • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
        "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
        Modifies WinLogon for persistence
        Drops file in Drivers directory
        Executes dropped EXE
        Checks computer location settings
        Adds Run key to start application
        Modifies registry class
        Suspicious use of AdjustPrivilegeToken
        PID:1776
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          PID:2224
        • C:\Users\Admin\Documents\excelsl.exe
          "C:\Users\Admin\Documents\excelsl.exe"
          Executes dropped EXE
          Suspicious use of SetThreadContext
          Suspicious use of AdjustPrivilegeToken
          PID:1944
          • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
            "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
            Executes dropped EXE
            PID:5024
          • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
            "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
            Executes dropped EXE
            PID:5088
          • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
            "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
            Executes dropped EXE
            Adds Run key to start application
            Suspicious use of AdjustPrivilegeToken
            Suspicious use of SetWindowsHookEx
            PID:4108
            • C:\Windows\SysWOW64\notepad.exe
              notepad
              PID:4984
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 1084
            Program crash
            PID:4752
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3152 -s 1068
        Program crash
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        PID:4488
    • C:\Users\Admin\AppData\Local\Temp\HQCfV7FRRQOABXkM.exe
      "C:\Users\Admin\AppData\Local\Temp\HQCfV7FRRQOABXkM.exe"
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:564
      • 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"'
        Creates scheduled task(s)
        PID:4784
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp37E0.tmp.bat""
        PID:3544
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          Delays execution with timeout.exe
          PID:4816
        • C:\Users\Admin\AppData\Roaming\prndrvest.exe
          "C:\Users\Admin\AppData\Roaming\prndrvest.exe"
          Executes dropped EXE
          PID:4876
    • C:\Users\Admin\AppData\Local\Temp\a5ZLvNGAtVUk5ZGQ.exe
      "C:\Users\Admin\AppData\Local\Temp\a5ZLvNGAtVUk5ZGQ.exe"
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:816
      • C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe
        "C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe"
        Executes dropped EXE
        PID:3772
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 816 -s 1068
        Program crash
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        PID:4656
    • C:\Users\Admin\AppData\Local\Temp\smw1NbGrMbaL1bkU.exe
      "C:\Users\Admin\AppData\Local\Temp\smw1NbGrMbaL1bkU.exe"
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:976
      • C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe
        "C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe"
        Executes dropped EXE
        Suspicious behavior: GetForegroundWindowSpam
        PID:4400
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 976 -s 1068
        Program crash
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        PID:1584
    • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
      "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
      Executes dropped EXE
      PID:1292
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4708 -s 1584
      Program crash
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1720

Network

MITRE ATT&CK Matrix

Collection

Command and Control

Credential Access

Execution

Exfiltration

Impact

Initial Access

Lateral Movement

Privilege Escalation

Replay Monitor

00:00 00:00

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3GmXcp07B5tOvjAw.exe
  • C:\Users\Admin\AppData\Local\Temp\3GmXcp07B5tOvjAw.exe
  • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
  • C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe
  • C:\Users\Admin\AppData\Local\Temp\9Wr8gF4Xq79ka0w0\svrhost.exe
  • C:\Users\Admin\AppData\Local\Temp\HQCfV7FRRQOABXkM.exe
  • C:\Users\Admin\AppData\Local\Temp\HQCfV7FRRQOABXkM.exe
  • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
  • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
  • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
  • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
  • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
  • C:\Users\Admin\AppData\Local\Temp\a5ZLvNGAtVUk5ZGQ.exe
  • C:\Users\Admin\AppData\Local\Temp\a5ZLvNGAtVUk5ZGQ.exe
  • C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe
  • C:\Users\Admin\AppData\Local\Temp\fI87ltOJhCNhEwlw\eridjeht.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
  • C:\Users\Admin\AppData\Local\Temp\obEaxLAjEnUh3zNn.exe
  • C:\Users\Admin\AppData\Local\Temp\obEaxLAjEnUh3zNn.exe
  • C:\Users\Admin\AppData\Local\Temp\smw1NbGrMbaL1bkU.exe
  • C:\Users\Admin\AppData\Local\Temp\smw1NbGrMbaL1bkU.exe
  • C:\Users\Admin\AppData\Local\Temp\tmp37E0.tmp.bat
  • C:\Users\Admin\AppData\Local\Temp\ykoy3tFjxKJZFVGI.exe
  • C:\Users\Admin\AppData\Local\Temp\ykoy3tFjxKJZFVGI.exe
  • C:\Users\Admin\AppData\Roaming\prndrvest.exe
  • C:\Users\Admin\AppData\Roaming\prndrvest.exe
  • C:\Users\Admin\Documents\excelsl.exe
  • C:\Users\Admin\Documents\excelsl.exe
  • C:\Windows\svehosts.exe
  • C:\Windows\svehosts.exe
  • memory/564-105-0x000000000A4D0000-0x000000000A4D1000-memory.dmp
    Filesize

    4KB

  • memory/564-36-0x0000000005C60000-0x0000000005C7D000-memory.dmp
    Filesize

    116KB

  • memory/564-104-0x000000000A070000-0x000000000A071000-memory.dmp
    Filesize

    4KB

  • memory/564-9-0x0000000000000000-mapping.dmp
  • memory/564-14-0x00000000713F0000-0x0000000071ADE000-memory.dmp
    Filesize

    6MB

  • memory/564-22-0x0000000000F80000-0x0000000000F81000-memory.dmp
    Filesize

    4KB

  • memory/564-29-0x0000000005820000-0x0000000005821000-memory.dmp
    Filesize

    4KB

  • memory/564-59-0x00000000030D0000-0x00000000030DD000-memory.dmp
    Filesize

    52KB

  • memory/564-24-0x0000000005C80000-0x0000000005C81000-memory.dmp
    Filesize

    4KB

  • memory/564-25-0x0000000005860000-0x0000000005861000-memory.dmp
    Filesize

    4KB

  • memory/748-132-0x0000000000000000-mapping.dmp
  • memory/816-103-0x0000000000000000-mapping.dmp
  • memory/816-93-0x0000000000000000-mapping.dmp
  • memory/816-102-0x0000000000000000-mapping.dmp
  • memory/816-90-0x0000000000000000-mapping.dmp
  • memory/816-89-0x0000000000000000-mapping.dmp
  • memory/816-10-0x0000000000000000-mapping.dmp
  • memory/816-99-0x0000000000000000-mapping.dmp
  • memory/816-91-0x0000000000000000-mapping.dmp
  • memory/816-92-0x0000000000000000-mapping.dmp
  • memory/816-95-0x0000000000000000-mapping.dmp
  • memory/816-101-0x0000000000000000-mapping.dmp
  • memory/816-100-0x0000000000000000-mapping.dmp
  • memory/976-71-0x0000000000000000-mapping.dmp
  • memory/976-73-0x0000000000000000-mapping.dmp
  • memory/976-13-0x0000000000000000-mapping.dmp
  • memory/976-64-0x0000000000000000-mapping.dmp
  • memory/976-61-0x0000000000000000-mapping.dmp
  • memory/976-76-0x0000000000000000-mapping.dmp
  • memory/976-70-0x0000000000000000-mapping.dmp
  • memory/976-58-0x0000000000000000-mapping.dmp
  • memory/976-55-0x0000000000000000-mapping.dmp
  • memory/976-51-0x0000000000000000-mapping.dmp
  • memory/976-53-0x0000000000000000-mapping.dmp
  • memory/976-72-0x0000000000000000-mapping.dmp
  • memory/992-31-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

  • memory/992-32-0x000000000046A08C-mapping.dmp
  • memory/992-35-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

  • memory/1292-20-0x000000000048F888-mapping.dmp
  • memory/1292-19-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/1380-149-0x000000000046A08C-mapping.dmp
  • memory/1380-151-0x0000000000400000-0x00000000004C2000-memory.dmp
    Filesize

    776KB

  • memory/1584-48-0x0000000004F90000-0x0000000004F91000-memory.dmp
    Filesize

    4KB

  • memory/1584-68-0x0000000005930000-0x0000000005931000-memory.dmp
    Filesize

    4KB

  • memory/1720-27-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/1720-30-0x00000000059B0000-0x00000000059B1000-memory.dmp
    Filesize

    4KB

  • memory/1720-26-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/1776-45-0x000000000048F888-mapping.dmp
  • memory/1776-49-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/1776-44-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/1864-3-0x0000000000000000-mapping.dmp
  • memory/1944-127-0x0000000000000000-mapping.dmp
  • memory/1944-124-0x0000000000000000-mapping.dmp
  • memory/1944-125-0x0000000000000000-mapping.dmp
  • memory/1944-123-0x0000000000000000-mapping.dmp
  • memory/1944-122-0x0000000000000000-mapping.dmp
  • memory/1944-128-0x0000000000000000-mapping.dmp
  • memory/1944-129-0x0000000000000000-mapping.dmp
  • memory/1944-130-0x0000000000000000-mapping.dmp
  • memory/1944-131-0x0000000000000000-mapping.dmp
  • memory/1944-120-0x0000000000000000-mapping.dmp
  • memory/1944-85-0x0000000000000000-mapping.dmp
  • memory/1944-121-0x0000000000000000-mapping.dmp
  • memory/2224-52-0x0000000000000000-mapping.dmp
  • memory/2224-56-0x0000000000000000-mapping.dmp
  • memory/2224-54-0x0000000002B30000-0x0000000002B31000-memory.dmp
    Filesize

    4KB

  • memory/2788-94-0x0000000000000000-mapping.dmp
  • memory/3152-74-0x0000000000000000-mapping.dmp
  • memory/3152-80-0x0000000000000000-mapping.dmp
  • memory/3152-6-0x0000000000000000-mapping.dmp
  • memory/3152-57-0x0000000000000000-mapping.dmp
  • memory/3152-78-0x0000000000000000-mapping.dmp
  • memory/3152-60-0x0000000000000000-mapping.dmp
  • memory/3152-65-0x0000000000000000-mapping.dmp
  • memory/3152-67-0x0000000000000000-mapping.dmp
  • memory/3152-66-0x0000000000000000-mapping.dmp
  • memory/3152-62-0x0000000000000000-mapping.dmp
  • memory/3152-75-0x0000000000000000-mapping.dmp
  • memory/3152-84-0x0000000000000000-mapping.dmp
  • memory/3544-134-0x0000000000000000-mapping.dmp
  • memory/3772-83-0x0000000000400000-0x0000000000554000-memory.dmp
    Filesize

    1MB

  • memory/3772-79-0x0000000000405CE2-mapping.dmp
  • memory/3772-77-0x0000000000400000-0x0000000000554000-memory.dmp
    Filesize

    1MB

  • memory/4092-37-0x0000000000000000-mapping.dmp
  • memory/4108-111-0x0000000000400000-0x00000000004BA000-memory.dmp
    Filesize

    744KB

  • memory/4108-109-0x000000000048F888-mapping.dmp
  • memory/4244-0-0x0000000000000000-mapping.dmp
  • memory/4400-39-0x0000000000400000-0x000000000040F000-memory.dmp
    Filesize

    60KB

  • memory/4400-43-0x0000000000400000-0x000000000040F000-memory.dmp
    Filesize

    60KB

  • memory/4400-40-0x000000000040715C-mapping.dmp
  • memory/4488-69-0x0000000005450000-0x0000000005451000-memory.dmp
    Filesize

    4KB

  • memory/4488-50-0x00000000048E0000-0x00000000048E1000-memory.dmp
    Filesize

    4KB

  • memory/4656-86-0x0000000004DD0000-0x0000000004DD1000-memory.dmp
    Filesize

    4KB

  • memory/4656-98-0x0000000005730000-0x0000000005731000-memory.dmp
    Filesize

    4KB

  • memory/4752-113-0x0000000004360000-0x0000000004361000-memory.dmp
    Filesize

    4KB

  • memory/4752-112-0x0000000004360000-0x0000000004361000-memory.dmp
    Filesize

    4KB

  • memory/4752-119-0x0000000004760000-0x0000000004761000-memory.dmp
    Filesize

    4KB

  • memory/4752-126-0x0000000004F80000-0x0000000004F81000-memory.dmp
    Filesize

    4KB

  • memory/4784-133-0x0000000000000000-mapping.dmp
  • memory/4816-136-0x0000000000000000-mapping.dmp
  • memory/4876-137-0x0000000000000000-mapping.dmp
  • memory/4876-141-0x00000000713F0000-0x0000000071ADE000-memory.dmp
    Filesize

    6MB

  • memory/4876-138-0x0000000000000000-mapping.dmp
  • memory/4984-117-0x0000000002E80000-0x0000000002E81000-memory.dmp
    Filesize

    4KB

  • memory/4984-118-0x0000000000000000-mapping.dmp
  • memory/4984-115-0x0000000000000000-mapping.dmp