Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2022, 11:09

General

  • Target

    Foriegn Payment_swift.js

  • Size

    355KB

  • MD5

    2e7136980055602233a13801274f2a84

  • SHA1

    b913cf35176a707b3f6609a25c1ae3194bcae02c

  • SHA256

    819a81aabd1c014d5f27ba2ba1265dce1f667093279565d43f76a5e82d3ed7a9

  • SHA512

    d01edb5d308ef39678d42ad07e90f9c2456c8da7105b71c9da3101991b3f8bbd61d04554a2de3a88389d985cc8166a942a1fc43a4231d45a06513e50b15f09c6

  • SSDEEP

    6144:xH3/F20qAbAFBJPF9NSil2+lO08e3wRiiH9NbyB7iGF2r0OPuub:l3woAjJPF9Jl/A08e3piHvY7iGwj2ub

Malware Config

Extracted

Family

formbook

Campaign

xrob

Decoy

dV8FCtdWdnfMJ9thh8l/

IJG6Bh4iMeHVBHNp2MrpTA==

NhPKKtmQxnHYF/80

f4M2RhGEf3Ot13+qLrKqxb9f3dXj9Q==

A/689/MibSRBgkPkx07m+H+g

e8OOkUu9y/uYCMsdrR3s0mODmGw3d8t9Og==

gLN5bn+Zq1VQXmOOvw==

NFcQGvViY5sxmkty83Fde4GQhg==

XWMfFSM3f7GT9w==

Ih6vvqf9R8gDObM=

FGAlLASHlpLaUUKUJIwm9ABQ2Js=

v8R615LDC8iWchwv

m+u3rLUxScgDObM=

jc3eahERf7GT9w==

TYNBVDadkpTF76HeNl/rbwWtLSbyPzM=

j6NQmhWeOi2B

aqJocUfM3v97ryScY6EiSMbVyBak

V7nYOyEZKa2J/KKh5RMhJrbyK/eC/Q==

8zPsAt3ejcgDObM=

Rpe+BrGBzpGa9q8FHKpi

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 62 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Foriegn Payment_swift.js"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\fdnTARLxlP.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:820
    • C:\Users\Admin\AppData\Local\Temp\bin.exe
      "C:\Users\Admin\AppData\Local\Temp\bin.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2496
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Windows\SysWOW64\systray.exe
      "C:\Windows\SysWOW64\systray.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4752
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:224

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bin.exe

      Filesize

      185KB

      MD5

      26db0806c0871f293a77e5d5676e2fd8

      SHA1

      7c17ccce454d81bb999c04d45e9e4913969a73ee

      SHA256

      2c623f8e02e0aef43501e320fd20a3b407dcf35676e6620574bf7e8ce4844e66

      SHA512

      0dac19dab4827a036a4e42371807639a4c378b440c3edc9ae30171cfb62a894243dc55ad5145434fac384aa37dd32381d148757e35c08300bbfe45c4cb85c09f

    • C:\Users\Admin\AppData\Local\Temp\bin.exe

      Filesize

      185KB

      MD5

      26db0806c0871f293a77e5d5676e2fd8

      SHA1

      7c17ccce454d81bb999c04d45e9e4913969a73ee

      SHA256

      2c623f8e02e0aef43501e320fd20a3b407dcf35676e6620574bf7e8ce4844e66

      SHA512

      0dac19dab4827a036a4e42371807639a4c378b440c3edc9ae30171cfb62a894243dc55ad5145434fac384aa37dd32381d148757e35c08300bbfe45c4cb85c09f

    • C:\Users\Admin\AppData\Roaming\fdnTARLxlP.js

      Filesize

      7KB

      MD5

      6cc1717cad794e25164a2ba358fa22d3

      SHA1

      c8fd430bcb92ff060a85ca4fd7a2b829b069a234

      SHA256

      8d17a84d7c1174928e0365e78288e2356c0d99f2194ebb2f4634333d80fc24c9

      SHA512

      2db6675ca2c685b4d7823714bc6b9474184a20b9733d160bf83c88bad419427151c80607fd1c05cc6152fa6d4c30d6204442d6b446421012db34aa0eb7ff7364

    • memory/2496-137-0x0000000000CA0000-0x0000000000CCF000-memory.dmp

      Filesize

      188KB

    • memory/2496-138-0x0000000001670000-0x00000000019BA000-memory.dmp

      Filesize

      3.3MB

    • memory/2496-139-0x00000000011D0000-0x00000000011E0000-memory.dmp

      Filesize

      64KB

    • memory/2720-140-0x0000000008570000-0x00000000086FF000-memory.dmp

      Filesize

      1.6MB

    • memory/2720-146-0x0000000003140000-0x0000000003244000-memory.dmp

      Filesize

      1.0MB

    • memory/2720-148-0x0000000003140000-0x0000000003244000-memory.dmp

      Filesize

      1.0MB

    • memory/4752-142-0x0000000000830000-0x0000000000836000-memory.dmp

      Filesize

      24KB

    • memory/4752-143-0x00000000008C0000-0x00000000008ED000-memory.dmp

      Filesize

      180KB

    • memory/4752-144-0x00000000027B0000-0x0000000002AFA000-memory.dmp

      Filesize

      3.3MB

    • memory/4752-145-0x0000000002600000-0x000000000268F000-memory.dmp

      Filesize

      572KB

    • memory/4752-147-0x00000000008C0000-0x00000000008ED000-memory.dmp

      Filesize

      180KB