Analysis

  • max time kernel
    149s
  • max time network
    196s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    12-10-2021 21:46

General

  • Target

    Original Shipment Doc Ref 2853801324189923.exe

  • Size

    1.0MB

  • MD5

    9f752a9587909dee2a9467d7fbed1b21

  • SHA1

    cfdf4da7770a40a660efe35473f248a10f2dee96

  • SHA256

    42c76dbf2485d58e38ffccc5cdd20539e4bae8a00b90f4633f453065d20b04cd

  • SHA512

    83c6dbf4752398ca54dca1f9fc7d325ef87a0ee3580b4e9f8a33353983c5c23e70a41bb614d2beb71e74c01034492a72448c9f01fa39b03657d2546bb0b98a11

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epns

C2

http://www.lnvietnam.online/epns/

Decoy

mmfaccao.com

blttsperma.quest

946abe.net

indispensablehands.com

jkformationfrance.com

phonerepaire.com

lienquan-trian.com

youkuti.com

empowermindbodystudios.com

seunicapf.com

fk-link.xyz

kunai.tech

difficultbutdoablebrand.com

ejworkspace.com

teracorp.biz

thekids.today

quintaalentejana.com

annaviruksham.com

jshengrong.com

nsmetalmakina.xyz

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe
      "C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe
        "C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:608
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:1572

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/608-68-0x0000000000330000-0x0000000000341000-memory.dmp
    Filesize

    68KB

  • memory/608-65-0x000000000041D410-mapping.dmp
  • memory/608-67-0x00000000008A0000-0x0000000000BA3000-memory.dmp
    Filesize

    3.0MB

  • memory/608-63-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/608-64-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1204-69-0x0000000004910000-0x00000000049EE000-memory.dmp
    Filesize

    888KB

  • memory/1204-75-0x00000000072D0000-0x00000000073F3000-memory.dmp
    Filesize

    1.1MB

  • memory/1572-70-0x0000000000000000-mapping.dmp
  • memory/1572-71-0x0000000000390000-0x0000000000398000-memory.dmp
    Filesize

    32KB

  • memory/1572-72-0x0000000000080000-0x00000000000A9000-memory.dmp
    Filesize

    164KB

  • memory/1572-73-0x0000000000820000-0x0000000000B23000-memory.dmp
    Filesize

    3.0MB

  • memory/1572-74-0x0000000000790000-0x0000000000820000-memory.dmp
    Filesize

    576KB

  • memory/1940-61-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

  • memory/1940-62-0x00000000002B1000-0x00000000002C5000-memory.dmp
    Filesize

    80KB

  • memory/1940-60-0x0000000075C31000-0x0000000075C33000-memory.dmp
    Filesize

    8KB