Analysis

  • max time kernel
    176s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    09-02-2022 10:21

General

  • Target

    PAYMENT_xlsx.exe

  • Size

    260KB

  • MD5

    903f090170c015ce8a923608be5f5529

  • SHA1

    ca5ab369fa9fa10367f8d2de5530986dd5add4a1

  • SHA256

    ae912e8263a9242ff6590f2c818cdc64c3a6f2f059576dc8d760a3af93db63fc

  • SHA512

    fb716c05053f9643ebdaff1e5a5a3d9b88cee77c1753a51618ab3c8f7897cd79384250edbe49cad6cf86579b83dd317ce2922674835ea3d484a0fb0f79f3bf6b

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

dtt3

Decoy

edilononlineshop.com

cursosd.com

viellacharteredland.com

increasey0urenergylevels.codes

yjy-hotel.com

claym.xyz

reelsguide.com

gives-cardano.com

ashrafannuar.com

mammalians.com

rocketleaguedads.com

yubierp.com

minimi36.com

chn-chn.com

jagojp888.com

parsian-shetab.com

273351.com

mdtouhid.com

babedads.com

vallinam2.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Users\Admin\AppData\Local\Temp\PAYMENT_xlsx.exe
      "C:\Users\Admin\AppData\Local\Temp\PAYMENT_xlsx.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2188
      • C:\Users\Admin\AppData\Local\Temp\PAYMENT_xlsx.exe
        "C:\Users\Admin\AppData\Local\Temp\PAYMENT_xlsx.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2768
    • C:\Windows\SysWOW64\cmmon32.exe
      "C:\Windows\SysWOW64\cmmon32.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3296
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\PAYMENT_xlsx.exe"
        3⤵
          PID:1572
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3592
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4128

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nswCFD2.tmp\grjrgdnfat.dll
      MD5

      4f17fcc87799615ed77345f05d8c5520

      SHA1

      1f4a7f5b874c28afdb8efa185282e8276147d305

      SHA256

      42af13597bd2e5a22c31c9776403f45ddf4cded7a488fd7ae2463cfa31ba5783

      SHA512

      40f2cbac516a82bccc0a49379a361d885dc97a4cc2589c81c1b39d5d94f9857c22eddc2194c089e392b209d9cc9e177ed4f39637e09639d4a9c08e7569ae485b

    • memory/656-137-0x00000000081B0000-0x0000000008308000-memory.dmp
      Filesize

      1.3MB

    • memory/656-142-0x00000000080A0000-0x0000000008175000-memory.dmp
      Filesize

      852KB

    • memory/2188-131-0x00000000022C0000-0x00000000022C2000-memory.dmp
      Filesize

      8KB

    • memory/2768-133-0x0000000000AF0000-0x0000000000E3A000-memory.dmp
      Filesize

      3.3MB

    • memory/2768-136-0x0000000000A00000-0x0000000000A11000-memory.dmp
      Filesize

      68KB

    • memory/2768-135-0x000000000041D000-0x000000000041E000-memory.dmp
      Filesize

      4KB

    • memory/2768-132-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/3296-138-0x0000000000090000-0x000000000009C000-memory.dmp
      Filesize

      48KB

    • memory/3296-139-0x0000000000560000-0x0000000000589000-memory.dmp
      Filesize

      164KB

    • memory/3296-140-0x0000000002800000-0x0000000002B4A000-memory.dmp
      Filesize

      3.3MB

    • memory/3296-141-0x0000000002530000-0x00000000025C0000-memory.dmp
      Filesize

      576KB

    • memory/3592-143-0x000002620EDA0000-0x000002620EDB0000-memory.dmp
      Filesize

      64KB

    • memory/3592-144-0x000002620F560000-0x000002620F570000-memory.dmp
      Filesize

      64KB

    • memory/3592-145-0x0000026212180000-0x0000026212184000-memory.dmp
      Filesize

      16KB