Analysis

  • max time kernel
    149s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 17:24

General

  • Target

    serrteter.exe

  • Size

    45KB

  • MD5

    369a6ea15eb8ebde64fc1e043ad44382

  • SHA1

    7f45dbf3268ec3bbfdd06c2086294b26d9beebac

  • SHA256

    b543df56136a5f5cab011ce1d88dd866aa47578c37bf5edab19db2c3d8c4e771

  • SHA512

    d88c224419abefae5da3ea3cb4b479c1bd1063a70ad3659d138886e194aca5a82e124e6dc74e108501fbbb0cdcd58c0bf9f8b53330e00a7bc74e978f1ac58533

  • SSDEEP

    768:FdhO/poiiUcjlJInazH9Xqk5nWEZ5SbTDa+WI7CPW5N:bw+jjgnYH9XqcnW85SbTPWIF

Malware Config

Extracted

Family

xenorat

C2

0.0.0.0

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    1

  • install_path

    appdata

  • port

    8888

  • startup_name

    Windows

Signatures

  • Detect XenoRat Payload 2 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\serrteter.exe
    "C:\Users\Admin\AppData\Local\Temp\serrteter.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3752
    • C:\Users\Admin\AppData\Roaming\XenoManager\serrteter.exe
      "C:\Users\Admin\AppData\Roaming\XenoManager\serrteter.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3084
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "Windows" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA846.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4324
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1108

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\serrteter.exe.log

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Local\Temp\tmpA846.tmp

    Filesize

    1KB

    MD5

    79b13ab7e7c490fbdcc8d5bacb4dd5b6

    SHA1

    2acf0c440abd9593318dfb9c155a517d24eb5e5b

    SHA256

    3764851eba7ab072cb22d8bd9a1723624a27fd164278f39bb94b966c433789fc

    SHA512

    7997a5a238daf7d519f103b3cdfdf3d67dfef13a1d49d6493dcd7086870429e34744034aaed6b090f563674af769329dc705de35d1f9c081f2b1afe3623efada

  • C:\Users\Admin\AppData\Roaming\XenoManager\serrteter.exe

    Filesize

    45KB

    MD5

    369a6ea15eb8ebde64fc1e043ad44382

    SHA1

    7f45dbf3268ec3bbfdd06c2086294b26d9beebac

    SHA256

    b543df56136a5f5cab011ce1d88dd866aa47578c37bf5edab19db2c3d8c4e771

    SHA512

    d88c224419abefae5da3ea3cb4b479c1bd1063a70ad3659d138886e194aca5a82e124e6dc74e108501fbbb0cdcd58c0bf9f8b53330e00a7bc74e978f1ac58533

  • memory/1108-29-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-31-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-25-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-26-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-19-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-21-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-20-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-27-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-30-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/1108-28-0x000001B5B77A0000-0x000001B5B77A1000-memory.dmp

    Filesize

    4KB

  • memory/3084-16-0x0000000074F90000-0x0000000075740000-memory.dmp

    Filesize

    7.7MB

  • memory/3084-17-0x0000000074F90000-0x0000000075740000-memory.dmp

    Filesize

    7.7MB

  • memory/3084-32-0x0000000074F90000-0x0000000075740000-memory.dmp

    Filesize

    7.7MB

  • memory/3752-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

    Filesize

    4KB

  • memory/3752-1-0x0000000000AE0000-0x0000000000AF2000-memory.dmp

    Filesize

    72KB