Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2024 23:21

General

  • Target

    2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomi.exe

  • Size

    132KB

  • MD5

    58106e9c40b89aa095fd22658ffa6e8d

  • SHA1

    4b7010b1df0a203ff99a0f3aea50898337d56f2c

  • SHA256

    7c84c1045054b6894b2e12c602a257e1a48610f875cb0e59f12af35bdca9eb03

  • SHA512

    f4dfdda8e2163d4e2cf9a464972a4e2b3f618a1f7559050c8a3a432a191c8ad54d44e94f1a97b6526b1b2058b0c95fc043ef2ad4d90878416d137353222a9295

  • SSDEEP

    3072:pTKbS75Attg3bPMmAlJG/ybuuHicEG+0GCH:4bSOSPMmaJGwuuHUG+J

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++.

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • 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 3 IoCs
  • UPX packed file 5 IoCs

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

  • 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 6 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomi.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomi.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Users\Admin\AppData\Local\Temp\VZRKxm.exe
      C:\Users\Admin\AppData\Local\Temp\VZRKxm.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:3316
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\131d6e2b.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:372
    • C:\Users\Admin\AppData\Local\Temp\2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomiSrv.exe
      C:\Users\Admin\AppData\Local\Temp\2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomiSrv.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1660
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1660 CREDAT:17410 /prefetch:2
            5⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    1febcd32ec103d1677cea2e73245ffa6

    SHA1

    fc35cc168291c490a78416705e90cefde5627fb2

    SHA256

    5bdad5ebecb1cd1683243aae582b801c2d63dd9d18ad434c006fdf294e83ff38

    SHA512

    24ae00db57547a7de9623cd557b9cff5ac42295965ad201163bc13eb39e6077f31cee2ace6986b355dd7788396c11e95b961390add8f587b7e57ca10a2c213bb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    404B

    MD5

    3a151ee5b584ad767bc8689ae7ca2f14

    SHA1

    eade4f2b6b72d6f5040879365394e579e6ab4077

    SHA256

    295c57b19237f442c5a3de3a22919e485d6deac14fe50c6470d2280d79d3e6bb

    SHA512

    e541876cb8990f0b7fc950d3aa35ac3cb19ed32e2496f2eaeedf64540c74db723fd9ce16819677e1bcee43008e1cea4254d462aa344ce07f3469d41c561df0e1

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

  • C:\Users\Admin\AppData\Local\Temp\131d6e2b.bat

    Filesize

    187B

    MD5

    b7d83b364e940fca77a7dbeb912fd4c0

    SHA1

    679f9934d19adfe342646a1e55c712e9ebe7a236

    SHA256

    7bffab5ec8bc0f12a6dab67545e8f2bebd05f038ee3b09c558c3189b0f40e17a

    SHA512

    3716d524126d2b074617ced151df20cfe603390c2ee1e19cde6193481e9cd2a1a7def26c2aeff04cfb81b4e837e3773ab1f66c1804620dce56f30541d8150624

  • C:\Users\Admin\AppData\Local\Temp\2024-12-04_58106e9c40b89aa095fd22658ffa6e8d_ramnit_smoke-loader_wapomiSrv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

    Filesize

    15KB

    MD5

    56b2c3810dba2e939a8bb9fa36d3cf96

    SHA1

    99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

    SHA256

    4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

    SHA512

    27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

  • memory/1808-23-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1808-0-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1960-18-0x0000000000560000-0x0000000000561000-memory.dmp

    Filesize

    4KB

  • memory/1960-19-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/1960-21-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2424-14-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/2424-13-0x0000000000550000-0x000000000055F000-memory.dmp

    Filesize

    60KB

  • memory/2424-10-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/3316-24-0x00000000005E0000-0x00000000005E9000-memory.dmp

    Filesize

    36KB

  • memory/3316-4-0x00000000005E0000-0x00000000005E9000-memory.dmp

    Filesize

    36KB