Analysis

  • max time kernel
    121s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 22:33

General

  • Target

    4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe

  • Size

    19KB

  • MD5

    b3ce4f6af8b4780ac038584f6eb4e427

  • SHA1

    6449971b1f22750122cfe2cc532cdcf9b5277714

  • SHA256

    4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236

  • SHA512

    fbc35ea6360c74e1c2da729ce13524981e71169e91f9c157f197723968ffd3733f3cabd05c21453229584df9351e46cf525f2c4518e894ce664d5c7f3daf3bd2

  • SSDEEP

    384:1FwS0XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:hUQGPL4vzZq2o9W7GsxBbPr

Malware Config

Extracted

Family

bdaejec

C2

ddos.dnsnb8.net

Signatures

  • Bdaejec

    Bdaejec is a backdoor written in C++.

  • Bdaejec family
  • Detects Bdaejec Backdoor. 2 IoCs

    Bdaejec is backdoor written in C++.

  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • 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 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe
    "C:\Users\Admin\AppData\Local\Temp\4b99249035f5fcd5f64e70bf7e09cd5a622400ea734b5d9823018d9a27b4a236.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Local\Temp\vCGUFyn.exe
      C:\Users\Admin\AppData\Local\Temp\vCGUFyn.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\7a9453cb.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1456
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1612 -s 208
      2⤵
      • Program crash
      PID:2148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NT668XG4\k2[1].rar

    Filesize

    4B

    MD5

    d3b07384d113edec49eaa6238ad5ff00

    SHA1

    f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

    SHA256

    b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

    SHA512

    0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

  • C:\Users\Admin\AppData\Local\Temp\134E7B93.exe

    Filesize

    4B

    MD5

    20879c987e2f9a916e578386d499f629

    SHA1

    c7b33ddcc42361fdb847036fc07e880b81935d5d

    SHA256

    9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

    SHA512

    bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

  • C:\Users\Admin\AppData\Local\Temp\7a9453cb.bat

    Filesize

    189B

    MD5

    ca63b60575ae4165242829c91d23204a

    SHA1

    c4c87335d72ce0f886479ace790a90030b8e90ab

    SHA256

    2fbf3b050fe0f90109d2e452092ac560ec74ce6a55392fdd7c80bc685c68f317

    SHA512

    72188b2c91a76a49056c216ba2dfbb69d92dda3cc3b57db62811c7097e62e2f9023519bd382c13a972dd2eb79272d8f476606f6f81e84a376576eac94be64172

  • \Users\Admin\AppData\Local\Temp\vCGUFyn.exe

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1396-12-0x0000000000C30000-0x0000000000C39000-memory.dmp

    Filesize

    36KB

  • memory/1396-54-0x0000000000C30000-0x0000000000C39000-memory.dmp

    Filesize

    36KB

  • memory/1612-0-0x0000000001000000-0x0000000001008000-memory.dmp

    Filesize

    32KB

  • memory/1612-4-0x0000000000C30000-0x0000000000C39000-memory.dmp

    Filesize

    36KB

  • memory/1612-9-0x0000000000C30000-0x0000000000C39000-memory.dmp

    Filesize

    36KB

  • memory/1612-56-0x0000000001000000-0x0000000001008000-memory.dmp

    Filesize

    32KB

  • memory/1612-57-0x0000000000C30000-0x0000000000C39000-memory.dmp

    Filesize

    36KB