Analysis

  • max time kernel
    149s
  • 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
    06-12-2024 09:41

General

  • Target

    a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe

  • Size

    161KB

  • MD5

    5152fe85bb3fb27bc5c9a03bd69cdb7d

  • SHA1

    f10099bbe57ee0cff489596cb04aeb914898afad

  • SHA256

    a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e

  • SHA512

    2b65a40ebc16bb7143060408d87dab84b3af86dfb33db4c0211febe32537a3ada1b0bd66f5a4741d22becc6e512b761026efd6039017694b0eecdb1b65572bd3

  • SSDEEP

    3072:WAl8ZMA3vR2sSN+3NZHtcKfE1RKW+zJQARhGq4y6d8loubgUMOfyrAbYp:WdRZ29+3NVmw8RK71FGIjJNq

Malware Config

Extracted

Family

xenorat

C2

96.126.118.61

Mutex

Microsoft Windows_3371808

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    4444

  • 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
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Themida packer 3 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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.

  • 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe
    "C:\Users\Admin\AppData\Local\Temp\a5d28ebe518095de0a4ca7143132c1de8d57bd7c9d18fb970834c1d9a682979e.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4080
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
      2⤵
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • 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:432
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "svchost.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAEED.tmp" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    3.9MB

    MD5

    9ce8e0cbb54f24de304851e0b7226c0a

    SHA1

    1db4c3d746ea0ad15e98ed3a2b96c2ca09fb1366

    SHA256

    59cd7e7b0c1c0760cb9499775184b02d8a8e3188bacd9420b04987b0b5724eb5

    SHA512

    fe5fd7e0f40074e45ad5a1709ff72670d47c2cb5e383cc9f6f4baccb21374a334d2ca1d970534f8815ae9a68c1e1f27b6517e3f8eb0a365b390686d61d0e97f8

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

    Filesize

    1KB

    MD5

    1e9f25c9b09e3ccff8ed92426ee69726

    SHA1

    9078fd487ebeb8617fb03ed4a1b29a4e310f79e1

    SHA256

    f7cd207422063ed60b798c72ce8e68990026a7f45c2a79fe4445bf8a139783c0

    SHA512

    4713347c5fb8f30fe6e218ffc3b0b5309fc8986cf1e909b588dd1a5c139caad4fed7ef3c0a410b6147ec6c3a95b6647e25b702684ea99d1b8cf8c7b925d0e4f8

  • memory/432-24-0x0000000077420000-0x0000000077421000-memory.dmp

    Filesize

    4KB

  • memory/432-40-0x0000000006AB0000-0x0000000006B16000-memory.dmp

    Filesize

    408KB

  • memory/432-14-0x0000000077420000-0x0000000077421000-memory.dmp

    Filesize

    4KB

  • memory/432-17-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-18-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-19-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-20-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-22-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-21-0x0000000000340000-0x0000000000CE4000-memory.dmp

    Filesize

    9.6MB

  • memory/432-28-0x0000000000340000-0x0000000000CE4000-memory.dmp

    Filesize

    9.6MB

  • memory/432-16-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-15-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-23-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-29-0x0000000000340000-0x0000000000CE4000-memory.dmp

    Filesize

    9.6MB

  • memory/432-30-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-31-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-33-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-34-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-35-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-13-0x0000000000340000-0x0000000000CE4000-memory.dmp

    Filesize

    9.6MB

  • memory/432-38-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-39-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB

  • memory/432-25-0x0000000077400000-0x00000000774F0000-memory.dmp

    Filesize

    960KB