Analysis

  • max time kernel
    156s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28-01-2022 20:58

General

  • Target

    Halkbank_Ekstre_20220128_081138_756957 (1).exe

  • Size

    17KB

  • MD5

    749aaf49615aa07edc9755541b213a4a

  • SHA1

    8e856cae4e8d14c7d37f5d8342fc2d30acfede64

  • SHA256

    d47bd2ff5d90d64d18485203e59a952e485a39f98e3d54258a578b13d9136ae7

  • SHA512

    a3b731a35b418ab43efc8d09e2373bb659dc78fa8408fa6edc6da66d13e03f13228b6db22eab4a47be96a99c162c09d01565182e3684e61a0fa017e9c7b4f7b7

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

po6r

Decoy

jnhuichuangxin.com

mubashir.art

extol.design

doyyindh.xyz

milanoautoexperts.com

4thefringe.com

453511.com

sellathonautocredit.com

velgian.com

6672pk.com

wodeluzhou.com

sumiyoshiku-hizaita.xyz

imoveldeprimeira.com

dgjssp.com

endokc.com

side-clicks.com

cashndashfinancial.com

vanhemelryck.info

agamitrading.com

woofgang.xyz

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe
      "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe"
      2⤵
      • Modifies WinLogon for persistence
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:828
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc WwBUAGgAcgBlAGEAZABpAG4AZwAuAFQAaAByAGUAYQBkAF0AOgA6AFMAbABlAGUAcAAoADIAMAAwADAAMAApAA==
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:708
      • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe
        "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe"
        3⤵
          PID:1828
        • C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe
          "C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20220128_081138_756957 (1).exe"
          3⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:920
      • 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
        PID:1768

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Winlogon Helper DLL

    1
    T1004

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/708-60-0x0000000002410000-0x000000000305A000-memory.dmp
      Filesize

      12.3MB

    • memory/708-61-0x0000000002410000-0x000000000305A000-memory.dmp
      Filesize

      12.3MB

    • memory/828-55-0x0000000000DD0000-0x0000000000DDA000-memory.dmp
      Filesize

      40KB

    • memory/828-56-0x0000000075D61000-0x0000000075D63000-memory.dmp
      Filesize

      8KB

    • memory/828-62-0x00000000022B0000-0x00000000022B1000-memory.dmp
      Filesize

      4KB

    • memory/828-63-0x00000000055B0000-0x000000000563E000-memory.dmp
      Filesize

      568KB

    • memory/828-64-0x0000000004A50000-0x0000000004A98000-memory.dmp
      Filesize

      288KB

    • memory/828-65-0x0000000004C50000-0x0000000004C9C000-memory.dmp
      Filesize

      304KB

    • memory/920-66-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/920-67-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/920-68-0x0000000000400000-0x0000000000429000-memory.dmp
      Filesize

      164KB

    • memory/920-70-0x00000000009C0000-0x0000000000CC3000-memory.dmp
      Filesize

      3.0MB

    • memory/920-71-0x0000000000180000-0x0000000000191000-memory.dmp
      Filesize

      68KB

    • memory/1380-72-0x0000000007370000-0x00000000074CA000-memory.dmp
      Filesize

      1.4MB

    • memory/1380-77-0x0000000004170000-0x000000000421A000-memory.dmp
      Filesize

      680KB

    • memory/1768-73-0x00000000008F0000-0x00000000008FD000-memory.dmp
      Filesize

      52KB

    • memory/1768-74-0x0000000000080000-0x00000000000A9000-memory.dmp
      Filesize

      164KB

    • memory/1768-75-0x0000000002020000-0x0000000002323000-memory.dmp
      Filesize

      3.0MB

    • memory/1768-76-0x0000000000560000-0x00000000005F0000-memory.dmp
      Filesize

      576KB