Analysis

  • max time kernel
    153s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    13-10-2021 17:40

General

  • Target

    IMG-pic 0699821.exe

  • Size

    1001KB

  • MD5

    14f80d04ac41196b969f4a6a60016a5a

  • SHA1

    7fbf938dcb3c873b4e6bb0b0ca00cff825c59d65

  • SHA256

    e07717afe65c94d4cae860225c8d6aaa4d3bde732598d34c96f98ff927e1d489

  • SHA512

    d2c757df0c99e93f40f6000cdf64493d62ee41f32471091800616f1aaca1063cc48c1f0d26b6d5ea2a5d44cb636b6e86cf4b1dcfe540242cf8640b17c896642a

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.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 54 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2848
    • C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe
      "C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1860
      • C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe
        "C:\Users\Admin\AppData\Local\Temp\IMG-pic 0699821.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1160
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2300

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/1160-117-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/1160-118-0x000000000041D410-mapping.dmp
  • memory/1160-121-0x0000000000CF0000-0x0000000000D01000-memory.dmp
    Filesize

    68KB

  • memory/1160-120-0x0000000000990000-0x0000000000CB0000-memory.dmp
    Filesize

    3.1MB

  • memory/1860-115-0x0000000002350000-0x0000000002351000-memory.dmp
    Filesize

    4KB

  • memory/1860-116-0x00000000023F1000-0x0000000002405000-memory.dmp
    Filesize

    80KB

  • memory/2300-125-0x0000000002C90000-0x0000000002CB9000-memory.dmp
    Filesize

    164KB

  • memory/2300-123-0x0000000000000000-mapping.dmp
  • memory/2300-124-0x0000000000C70000-0x0000000000C76000-memory.dmp
    Filesize

    24KB

  • memory/2300-126-0x0000000004D00000-0x0000000005020000-memory.dmp
    Filesize

    3.1MB

  • memory/2300-127-0x0000000005020000-0x00000000050B0000-memory.dmp
    Filesize

    576KB

  • memory/2848-122-0x00000000061E0000-0x0000000006386000-memory.dmp
    Filesize

    1.6MB

  • memory/2848-128-0x0000000004FB0000-0x000000000512B000-memory.dmp
    Filesize

    1.5MB