Analysis

  • max time kernel
    152s
  • max time network
    177s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    16-09-2021 09:05

General

  • Target

    DOC.exe

  • Size

    480KB

  • MD5

    66fc712a2dc1321fa0fc6bdf8bcd82a5

  • SHA1

    7870ac22e3c8233430e0c5df62c72397f29e1294

  • SHA256

    b092672d7f36d3deaab664c0a562b055f9cee3f247328e639aca58f025f979ca

  • SHA512

    d0c101943eb61750234a838e1c5b2571996c64c5f0800272656d74e79dd60e9737e3c5326978ff6dacdd32bde71b88b46e0b4b9e87cde7e09f1246bb3667e7d7

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

n58i

C2

http://www.nordicbatterybelt.net/n58i/

Decoy

southerncircumstance.com

mcsasco.com

ifbrick.com

societe-anonyme.net

bantank.xyz

dogecoin.beauty

aboutacoffee.com

babalandlordrealestate.com

tintgta.com

integrity.directory

parwnr.icu

poltishof.online

stayandstyle.com

ickjeame.xyz

currentmotors.ca

pond.fund

petrosterzis.com

deadbydaylightpoints.com

hotel-balzac.paris

focusmaintainance.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 3 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Users\Admin\AppData\Local\Temp\DOC.exe
      "C:\Users\Admin\AppData\Local\Temp\DOC.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1832
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1544
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1436
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        3⤵
          PID:784

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Command-Line Interface

    1
    T1059

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/784-75-0x0000000000000000-mapping.dmp
    • memory/1212-72-0x0000000004F30000-0x0000000005098000-memory.dmp
      Filesize

      1.4MB

    • memory/1212-80-0x0000000007480000-0x00000000075EE000-memory.dmp
      Filesize

      1.4MB

    • memory/1212-70-0x0000000003E20000-0x0000000003EDD000-memory.dmp
      Filesize

      756KB

    • memory/1436-79-0x0000000000990000-0x0000000000A20000-memory.dmp
      Filesize

      576KB

    • memory/1436-78-0x0000000000B30000-0x0000000000E33000-memory.dmp
      Filesize

      3.0MB

    • memory/1436-77-0x00000000000C0000-0x00000000000E9000-memory.dmp
      Filesize

      164KB

    • memory/1436-76-0x0000000000F20000-0x0000000000F2A000-memory.dmp
      Filesize

      40KB

    • memory/1436-74-0x0000000075801000-0x0000000075803000-memory.dmp
      Filesize

      8KB

    • memory/1436-73-0x0000000000000000-mapping.dmp
    • memory/1544-67-0x000000000041D470-mapping.dmp
    • memory/1544-71-0x0000000000220000-0x0000000000231000-memory.dmp
      Filesize

      68KB

    • memory/1544-69-0x0000000000190000-0x00000000001A1000-memory.dmp
      Filesize

      68KB

    • memory/1544-68-0x0000000000B70000-0x0000000000E73000-memory.dmp
      Filesize

      3.0MB

    • memory/1544-66-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/1832-60-0x00000000011A0000-0x00000000011A1000-memory.dmp
      Filesize

      4KB

    • memory/1832-65-0x0000000000610000-0x000000000063C000-memory.dmp
      Filesize

      176KB

    • memory/1832-64-0x0000000007E30000-0x0000000007E92000-memory.dmp
      Filesize

      392KB

    • memory/1832-63-0x0000000000230000-0x0000000000237000-memory.dmp
      Filesize

      28KB

    • memory/1832-62-0x0000000000B20000-0x0000000000B21000-memory.dmp
      Filesize

      4KB