Analysis

  • max time kernel
    30s
  • max time network
    31s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2024 19:01

General

  • Target

    Start.bat

  • Size

    2KB

  • MD5

    6319006e2bfe88e5d7c643f6f44e25c8

  • SHA1

    3cc007c17d44a0d5292a4f397abe8990c19ed17e

  • SHA256

    b479648114f6ec339ff14483f813ef312d67fad1630a2c52f9b475717ee9f4c1

  • SHA512

    81ac3ca0fd198cb094156fb6f0d4b882d7ec676b201bf2b996fba095013d11c9de38de6c2442cca8f340aefc921db02e623502afa6f5038e3733337120b90fcd

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 1 IoCs

    Bdaejec is backdoor written in C++.

  • Stops running service(s) 4 TTPs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe 15 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Start.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD
      2⤵
      • Launches sc.exe
      PID:1520
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD1
      2⤵
      • Launches sc.exe
      PID:3608
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD2
      2⤵
      • Launches sc.exe
      PID:4036
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD3
      2⤵
      • Launches sc.exe
      PID:4344
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD4
      2⤵
      • Launches sc.exe
      PID:336
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD5
      2⤵
      • Launches sc.exe
      PID:3516
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD6
      2⤵
      • Launches sc.exe
      PID:4600
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD7
      2⤵
      • Launches sc.exe
      PID:3688
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD8
      2⤵
      • Launches sc.exe
      PID:2676
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD9
      2⤵
      • Launches sc.exe
      PID:4860
    • C:\Windows\system32\sc.exe
      sc delete FairplayKD10
      2⤵
      • Launches sc.exe
      PID:1380
    • C:\Windows\system32\PING.EXE
      ping 127.0.0.1 -n 2
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Runs ping.exe
      PID:5116
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -ExecutionPolicy Bypass -File C:\Users\service.ps1
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4376
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      PowerShell -Command "Get-EventLog -LogName * | ForEach { Clear-EventLog $_.Log }"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:872
    • C:\Users\Admin\AppData\Local\Temp\DutchbotInject.exe
      DutchbotInject.exe
      2⤵
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Users\Admin\AppData\Local\Temp\Ghxb.exe
        C:\Users\Admin\AppData\Local\Temp\Ghxb.exe
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4500
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2f6c0d30.bat" "
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1408
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sc stop FairplayKD >nul
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2192
        • C:\Windows\SysWOW64\sc.exe
          sc stop FairplayKD
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:1952
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sc delete FairplayKD >nul
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Windows\SysWOW64\sc.exe
          sc delete FairplayKD
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:1784
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sc stop FairplayKD1 >nul
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4088
        • C:\Windows\SysWOW64\sc.exe
          sc stop FairplayKD1
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:4116
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c sc delete FairplayKD1 >nul
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1324
        • C:\Windows\SysWOW64\sc.exe
          sc delete FairplayKD1
          4⤵
          • Launches sc.exe
          • System Location Discovery: System Language Discovery
          PID:924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    6cf293cb4d80be23433eecf74ddb5503

    SHA1

    24fe4752df102c2ef492954d6b046cb5512ad408

    SHA256

    b1f292b6199aa29c7fafbca007e5f9e3f68edcbbca1965bc828cc92dc0f18bb8

    SHA512

    0f91e2da0da8794b9797c7b50eb5dfd27bde4546ceb6902a776664ce887dd6f12a0dd8773d612ccc76dfd029cd280778a0f0ae17ce679b3d2ffd968dd7e94a00

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    1KB

    MD5

    e0ec6bf376a6b15852bce768196c5ed0

    SHA1

    05fe4e592ebbb7e29f36b8d30a6a90ba29bd4f81

    SHA256

    2d4a39cbbd597a7cfff477817c3c7c541c14974c8d234b4c0de6d229e3a3ce97

    SHA512

    dc0c7d3d127c88affea9ae402d7358c079cfa7fc3ecb417085e31dc749da1406e72563bfbe42167fdad57e10aa0c6cca7a8ba06921b3a1212ad7ccee1a0f859b

  • C:\Users\Admin\AppData\Local\Temp\2f6c0d30.bat

    Filesize

    183B

    MD5

    5f1702122a6ac639741dd38aada0d58a

    SHA1

    753ff33ee3fec0b82b958d3fdf462cfaf3b54d1e

    SHA256

    0c9979c16ceebee1c9dd59ab79c03bbcefcc21a696f351dede055bcb7669d58f

    SHA512

    7deae43105b09898e34989b2c7dfd0c2b6d475ab203ddd7e60b23b501f7449f25c9e16868283f9519299410a3e0587f6735e0eb78649f15d58fe381f84327244

  • C:\Users\Admin\AppData\Local\Temp\48CE530D.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\Ghxb.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r03f4wxs.saf.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\service.ps1

    Filesize

    1KB

    MD5

    55cee1bfb2bb685c8886fef55e2f0eed

    SHA1

    c52eab8b690bfc94ff354d10f3d944af76d49f9a

    SHA256

    728ecfc271c6117ff28b278845cd18614e79e69d4a8c9ee7d3266b274452ad95

    SHA512

    1ac4aa4ea02d513d66f39e0ebab8d64d6c03bdbb7ed84eff2fac6bebffb1bf0516e16f90baaf8c3d5a67b53c10b07518b3fbd37057b54966fcfd177a557ca02a

  • memory/3208-30-0x0000000000150000-0x00000000001B2000-memory.dmp

    Filesize

    392KB

  • memory/3208-78-0x0000000000150000-0x00000000001B2000-memory.dmp

    Filesize

    392KB

  • memory/4376-12-0x00007FFEC5E10000-0x00007FFEC68D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4376-1-0x00007FFEC5E13000-0x00007FFEC5E15000-memory.dmp

    Filesize

    8KB

  • memory/4376-11-0x00000261B0050000-0x00000261B0072000-memory.dmp

    Filesize

    136KB

  • memory/4376-17-0x00007FFEC5E10000-0x00007FFEC68D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4376-13-0x00007FFEC5E10000-0x00007FFEC68D1000-memory.dmp

    Filesize

    10.8MB

  • memory/4500-34-0x0000000000540000-0x0000000000549000-memory.dmp

    Filesize

    36KB

  • memory/4500-76-0x0000000000540000-0x0000000000549000-memory.dmp

    Filesize

    36KB