Analysis

  • max time kernel
    99s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-01-2025 15:22

General

  • Target

    2025-01-25_1f75387c52713d7d554847252cdfcb92_smoke-loader_wapomi.exe

  • Size

    77KB

  • MD5

    1f75387c52713d7d554847252cdfcb92

  • SHA1

    e34afc80d93b3aad18d19b54599da84e994de442

  • SHA256

    041d2fa3b6f6a906ea2c4ce6b9882b10199e1c06d87276d80a38833832589205

  • SHA512

    7f0d96f8fe811f053b92117e647e13fc63fc4df180b30bd67af6e162b6b5f221e95c22aef9bd250a828dbe20d04319df5ff60d2a7a7293e51765fa2cf19f7b24

  • SSDEEP

    1536:VlWvkZ+I+4u5LXcs7jVStGLvdo52DGCq2iW7z:PWK+I+/wslzo5YGCH

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++.

  • 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-25_1f75387c52713d7d554847252cdfcb92_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-25_1f75387c52713d7d554847252cdfcb92_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Users\Admin\AppData\Local\Temp\DAjoBk.exe
      C:\Users\Admin\AppData\Local\Temp\DAjoBk.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:5100
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\791e29b1.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • 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\Temp\00F90A89.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\791e29b1.bat

    Filesize

    187B

    MD5

    6d54248c117cce6f77980ba8f77e7e4c

    SHA1

    2c77358e18d20b8e34715eeb5ba2d7521ca78076

    SHA256

    b84a5dc71daee9483c11fe83a820c8f2fd5ef0d6b2fbb2659618703df5d6e4f3

    SHA512

    56cf0c173279cce65c80e59f88a16bd1655f252ddc8e567ae9dd5707223f86c817f08ed04ac56fb6a1a2ba77ee243447db7ed77deecb41b4f028684fda80a8ab

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/4024-0-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/4024-7-0x0000000000400000-0x0000000000419000-memory.dmp

    Filesize

    100KB

  • memory/5100-4-0x0000000000450000-0x0000000000459000-memory.dmp

    Filesize

    36KB

  • memory/5100-28-0x0000000000450000-0x0000000000459000-memory.dmp

    Filesize

    36KB