Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 17:16

General

  • Target

    a1b6ec86bff84ed72257daaf6a11811f71027b8a02592d39bda47c36a1a91afb.exe

  • Size

    2.2MB

  • MD5

    958dad459434404af63b16110f8333be

  • SHA1

    2d83e559793d250b8e50643a90c90d78d4a5174f

  • SHA256

    a1b6ec86bff84ed72257daaf6a11811f71027b8a02592d39bda47c36a1a91afb

  • SHA512

    d98d4bf9cfe745c4b7cc4734a017c586c88013a2dc8c16f8e97f50261001357f5e01314dc8a91d8c624ab7ac56c0cc7478c8ed7268bf5004db8f9de61c03bc81

  • SSDEEP

    49152:fegwdsK+fl0+eor1gyVSgg0R4WEggpZWPVcr8823guNNb9C5sx7LfkyoJ:l5OpMp49ggpZyHNho5sNaJ

Malware Config

Extracted

Family

xenorat

C2

96.126.118.61

Mutex

Microsoft Windows_3371808

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    5037

  • startup_name

    svchost.exe

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1b6ec86bff84ed72257daaf6a11811f71027b8a02592d39bda47c36a1a91afb.exe
    "C:\Users\Admin\AppData\Local\Temp\a1b6ec86bff84ed72257daaf6a11811f71027b8a02592d39bda47c36a1a91afb.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:400
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /Create /TN "svchost.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC813.tmp" /F
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC813.tmp

    Filesize

    1KB

    MD5

    7c3763245eea4e1da4a06034273799f6

    SHA1

    10d237c5f2faf43291a43f160e88d278777f8407

    SHA256

    594d1863b51343ff956e34892d90854627f6a73686b89824616e9e17b7410160

    SHA512

    f87d36b8cf5261a9d0cb4ec84da92040cdf2d7cf63e4898e232a52a76358c8e962725eb75be65bceb88d73b439db03448ae2bc34d477e9a0fa9e2186d9cf6338

  • memory/400-4-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-3-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-12-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-13-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-5-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-8-0x0000000000700000-0x0000000000DCE000-memory.dmp

    Filesize

    6.8MB

  • memory/400-9-0x0000000000700000-0x0000000000DCE000-memory.dmp

    Filesize

    6.8MB

  • memory/400-10-0x0000000000700000-0x0000000000DCE000-memory.dmp

    Filesize

    6.8MB

  • memory/400-22-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-2-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-0-0x0000000000700000-0x0000000000DCE000-memory.dmp

    Filesize

    6.8MB

  • memory/400-1-0x0000000076B70000-0x0000000076B71000-memory.dmp

    Filesize

    4KB

  • memory/400-16-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-17-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-18-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-20-0x0000000076B50000-0x0000000076C40000-memory.dmp

    Filesize

    960KB

  • memory/400-21-0x0000000006220000-0x0000000006286000-memory.dmp

    Filesize

    408KB

  • memory/400-11-0x0000000076B70000-0x0000000076B71000-memory.dmp

    Filesize

    4KB