Analysis

  • max time kernel
    140s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 02:27

General

  • Target

    2024-12-26_372bccab8bba9047aaec867b16674bdb_smoke-loader_wapomi.exe

  • Size

    95KB

  • MD5

    372bccab8bba9047aaec867b16674bdb

  • SHA1

    598ea7b7409791acb7e656c82bcd5a3df30ebd14

  • SHA256

    d9751ebde56bac457c8f3136062497eae7e5cb9493368a353d9540adb63dea71

  • SHA512

    bb5f7bf4bdfe2bac3658e295a035611194365c5b89e69defce724e87707d997d618139bb1d992d5eb160b11f7e2ef256d41f84a0fa21ad427b3bc82eca69588f

  • SSDEEP

    1536:jmHsKgDuEaIY0TnYZXqp1jblhRMnnHqPP9kWKLVjhGTSR+GCq2iW7z:jmHsKgDDJbTnYZ+lhRKHqPfghMS0GCH

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++.

  • Detected Nirsoft tools 4 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • 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
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-26_372bccab8bba9047aaec867b16674bdb_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-26_372bccab8bba9047aaec867b16674bdb_smoke-loader_wapomi.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Users\Admin\AppData\Local\Temp\uArQoS.exe
      C:\Users\Admin\AppData\Local\Temp\uArQoS.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:2064
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1dd32f35.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3152

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1dd32f35.bat

    Filesize

    187B

    MD5

    7ded560294a78a94f5df052f02acbd95

    SHA1

    210bb1b443ce1ca6246d780e5ab66c2c63a32eec

    SHA256

    fe5702a9003ea83c22910fdf6b5c0066070f6242c9fb7d57e023a9365f44baff

    SHA512

    874a9ba2adf4cb38510c2e1c1db14bd1ba2d698c5b3f6fc9ee8bf011283bb9bca094dc1cb8b281bd4c3d4af36626ce91dc830f7f5b7fe9a8f46bdf00b5b03c07

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1676-0-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1676-7-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1676-12-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1676-14-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/1676-26-0x0000000000400000-0x0000000000436000-memory.dmp

    Filesize

    216KB

  • memory/2064-4-0x0000000000500000-0x0000000000509000-memory.dmp

    Filesize

    36KB

  • memory/2064-9-0x0000000000500000-0x0000000000509000-memory.dmp

    Filesize

    36KB