Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2024 04:18

General

  • Target

    805e284a572c89194c01a4b45018ebd84611a17324115a706ed490d92d30fb6f.exe

  • Size

    248KB

  • MD5

    632b2d07e50b196df7d9981ab6e97e7f

  • SHA1

    34ad4d599d258ace18c19a7cc68a714a89809d6a

  • SHA256

    805e284a572c89194c01a4b45018ebd84611a17324115a706ed490d92d30fb6f

  • SHA512

    04dad39193f24d27417ba9124ee2c229fec680476b97efe45fee88670c422d76eb08acb2357b5ed3b028df6e3edb8e99ef7cad9b40567cd99d41a86244733043

  • SSDEEP

    3072:3DwPX0z03zMXam9kU5N3NYFeSJpcC0aFEl9GQ5c4JfXMSS5/8ESPz3JBEGCH:O9MXvnkeoc/aCz5c4JPqmzB

Malware Config

Signatures

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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).

  • 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.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\805e284a572c89194c01a4b45018ebd84611a17324115a706ed490d92d30fb6f.exe
    "C:\Users\Admin\AppData\Local\Temp\805e284a572c89194c01a4b45018ebd84611a17324115a706ed490d92d30fb6f.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Checks SCSI registry key(s)
    • Suspicious use of WriteProcessMemory
    PID:528
    • C:\Users\Admin\AppData\Local\Temp\PDuOj.exe
      C:\Users\Admin\AppData\Local\Temp\PDuOj.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:1368
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\171b7dc8.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 528 -s 472
      2⤵
      • Program crash
      PID:4508
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 528 -ip 528
    1⤵
      PID:2260

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MQYRE6E5\k2[1].rar

      Filesize

      4B

      MD5

      d3b07384d113edec49eaa6238ad5ff00

      SHA1

      f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

      SHA256

      b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

      SHA512

      0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

    • C:\Users\Admin\AppData\Local\Temp\171b7dc8.bat

      Filesize

      185B

      MD5

      4d7372b96c26f6838e3f9bd6e5986a74

      SHA1

      887e70335b805eec51124bf46659cf9a6591a0ab

      SHA256

      3ce6d5f7e3e534be06a9586b77485d9b1eb8e27e6b381336a0eb40306b9812fd

      SHA512

      bdce9785ef3c6e09a527910ad79b3dba4ed43960a5600c6e72f0cc73996d28f837244d2f84386378647c5967c5c06a78a5ba81bceb66c433825aaa37b38719b8

    • C:\Users\Admin\AppData\Local\Temp\37300435.exe

      Filesize

      4B

      MD5

      20879c987e2f9a916e578386d499f629

      SHA1

      c7b33ddcc42361fdb847036fc07e880b81935d5d

      SHA256

      9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

      SHA512

      bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

      Filesize

      15KB

      MD5

      f7d21de5c4e81341eccd280c11ddcc9a

      SHA1

      d4e9ef10d7685d491583c6fa93ae5d9105d815bd

      SHA256

      4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

      SHA512

      e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

    • memory/528-0-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/528-8-0x00000000005A0000-0x00000000006A0000-memory.dmp

      Filesize

      1024KB

    • memory/528-9-0x0000000000520000-0x000000000052B000-memory.dmp

      Filesize

      44KB

    • memory/528-10-0x0000000000400000-0x000000000040B000-memory.dmp

      Filesize

      44KB

    • memory/528-25-0x0000000000400000-0x000000000044F000-memory.dmp

      Filesize

      316KB

    • memory/1368-5-0x0000000000D50000-0x0000000000D59000-memory.dmp

      Filesize

      36KB

    • memory/1368-51-0x0000000000D50000-0x0000000000D59000-memory.dmp

      Filesize

      36KB