Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20210916
  • submitted
    17-09-2021 18:43

General

  • Target

    de8a80136d8b6c2002ba8473bda2a617.exe

  • Size

    255KB

  • MD5

    de8a80136d8b6c2002ba8473bda2a617

  • SHA1

    6ccca366fd276d0bff3197b02bfb8c192fe75cb3

  • SHA256

    4e18d364c4fa2db105557cf8105e5e3d77c9d7a06590b4f897051f99014da5be

  • SHA512

    d93ca922a818f387312a317ef84e22d88ac9c091a8ddb85c742983fa37801614681d22b842aacd66f6d66621700a0e4eeacc632428303f8db6c7bd0f8d607875

Score
10/10

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

b6a4

C2

http://www.helpmovingandstorage.com/b6a4/

Decoy

gr2future.com

asteroid.finance

skoba-plast.com

rnerfrfw5z3ki.net

thesmartroadtoretirement.com

avisdrummondhomes.com

banban365.net

profesyonelkampcadiri.net

royalloanhs.com

yulujy.com

xn--naqejahan-n3b.com

msalee.net

dollyvee.com

albertagamehawkersclub.com

cbspecialists.com

findingforeverrealty.com

mrtireshop.com

wadamasanari.com

growtechinfo.com

qipai039.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • Xloader Payload 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de8a80136d8b6c2002ba8473bda2a617.exe
    "C:\Users\Admin\AppData\Local\Temp\de8a80136d8b6c2002ba8473bda2a617.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\de8a80136d8b6c2002ba8473bda2a617.exe
      "C:\Users\Admin\AppData\Local\Temp\de8a80136d8b6c2002ba8473bda2a617.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsgB6D1.tmp\tkxaz.dll
    MD5

    220b53f6a42f8f23f16378c8330763d1

    SHA1

    02078dc5f0d573ba4c7bb24f69c7218f31987be6

    SHA256

    3c470a8a1732a7e3e06cd561f5566c192f851e763b3694d84f546fe8ba379637

    SHA512

    6f442f207deaabb292851abae4d7c372504aa61a1ccfdce6d6f5b5d9d00fff681ff3a458731e47d227404a9bbab6f7fc61493a98075fac33db89766064cbb6f2

  • memory/524-55-0x000000000041D0B0-mapping.dmp
  • memory/524-56-0x0000000000400000-0x0000000000429000-memory.dmp
    Filesize

    164KB

  • memory/524-57-0x0000000000910000-0x0000000000C13000-memory.dmp
    Filesize

    3.0MB

  • memory/1624-53-0x0000000076911000-0x0000000076913000-memory.dmp
    Filesize

    8KB