Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 14:46

General

  • Target

    a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe

  • Size

    1.6MB

  • MD5

    8a2569376394187c5f4bf586ddbd26b9

  • SHA1

    2c43557cd605431f9d78153b8430cab25f3ab104

  • SHA256

    a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7

  • SHA512

    dfb41641f5c6f7da4bf540202c9b286db45bd7bfe04058b098088cf2971bb5a3e097d37b8fd22d42d528fdd07d210ff3f0b43badca580b9b8957a0d9c302b056

  • SSDEEP

    24576:hbzujSc7XTwRqofD9kwvbkzbLB/FzeFwYcYtnH4yC0iS4McS8XkkjYvW:hGjSc7DJYmwjiN1rYtnYVS4MMXfjYvW

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Blackmoon family
  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 1 IoCs
  • Detects Bdaejec Backdoor. 1 IoCs

    Bdaejec is backdoor written in C++.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe
    "C:\Users\Admin\AppData\Local\Temp\a387a5fccd194617e1a649830da9be2f38ecab5135c7d60e84802696275bffa7.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Users\Admin\AppData\Local\Temp\ASclmh.exe
      C:\Users\Admin\AppData\Local\Temp\ASclmh.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3288
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7fe16a0b.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\13951F94.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\7fe16a0b.bat

    Filesize

    187B

    MD5

    7e8d4dad0a2f2e1c108b57c0ba583dc3

    SHA1

    5ba97afd6a422e38d63f38e35d4cd27e04d62973

    SHA256

    0495865cf45a20cdce40606c90bf1cf7361018b94c9d62b06282d43cdc188245

    SHA512

    26518bc2920afdc07b6ef1f092257a2e7f9ea580ad0151cb042e95f5ebe8a6548f375a5826cd193ef3d0cb5316932eb0ebdabe8dab5e3c71e32e34f6c96c78ce

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/2296-0-0x0000000000400000-0x0000000000B11000-memory.dmp

    Filesize

    7.1MB

  • memory/2296-48-0x0000000000400000-0x0000000000B11000-memory.dmp

    Filesize

    7.1MB

  • memory/3288-4-0x0000000000700000-0x0000000000709000-memory.dmp

    Filesize

    36KB

  • memory/3288-46-0x0000000000700000-0x0000000000709000-memory.dmp

    Filesize

    36KB