Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-09-2021 19:12

General

  • Target

    UPDATED e-STATEMENT..exe

  • Size

    872KB

  • MD5

    a3279da350cf134f736629e5e55c0a41

  • SHA1

    d28cc3a2cc3e16cf38634cab8db41aacebf4709b

  • SHA256

    fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581

  • SHA512

    248040d33716b6f7fb5c0764380c67489d2acdc52784b2d8020faa57f09edc383ab7ecd85c297ef2516698e2cfa92e7d8edc8fc0c510263e5a2b91e1f650d79b

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.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
  • Blocklisted process makes network request 1 IoCs
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Local\Temp\UPDATED e-STATEMENT..exe
      "C:\Users\Admin\AppData\Local\Temp\UPDATED e-STATEMENT..exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Users\Admin\AppData\Local\Temp\UPDATED e-STATEMENT..exe
        "{path}"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:972
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1876
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\UPDATED e-STATEMENT..exe"
        3⤵
        • Deletes itself
        PID:516

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/516-70-0x0000000000000000-mapping.dmp
  • memory/972-61-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/972-64-0x00000000002E0000-0x00000000002F1000-memory.dmp
    Filesize

    68KB

  • memory/972-63-0x0000000000800000-0x0000000000B03000-memory.dmp
    Filesize

    3.0MB

  • memory/972-62-0x000000000041D3A0-mapping.dmp
  • memory/1232-59-0x0000000005950000-0x00000000059CC000-memory.dmp
    Filesize

    496KB

  • memory/1232-56-0x0000000005010000-0x0000000005011000-memory.dmp
    Filesize

    4KB

  • memory/1232-54-0x0000000001130000-0x0000000001131000-memory.dmp
    Filesize

    4KB

  • memory/1232-58-0x0000000000550000-0x000000000055E000-memory.dmp
    Filesize

    56KB

  • memory/1232-57-0x000000007EF40000-0x000000007EF41000-memory.dmp
    Filesize

    4KB

  • memory/1232-60-0x0000000000A30000-0x0000000000A5B000-memory.dmp
    Filesize

    172KB

  • memory/1272-65-0x0000000007030000-0x00000000071A7000-memory.dmp
    Filesize

    1.5MB

  • memory/1272-73-0x0000000007340000-0x0000000007485000-memory.dmp
    Filesize

    1.3MB

  • memory/1876-66-0x0000000000000000-mapping.dmp
  • memory/1876-67-0x0000000074F81000-0x0000000074F83000-memory.dmp
    Filesize

    8KB

  • memory/1876-68-0x0000000000300000-0x000000000030E000-memory.dmp
    Filesize

    56KB

  • memory/1876-69-0x0000000000090000-0x00000000000B9000-memory.dmp
    Filesize

    164KB

  • memory/1876-71-0x0000000002100000-0x0000000002403000-memory.dmp
    Filesize

    3.0MB

  • memory/1876-72-0x0000000001FA0000-0x0000000002030000-memory.dmp
    Filesize

    576KB