Analysis

  • max time kernel
    119s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 07:24

General

  • Target

    HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe

  • Size

    885KB

  • MD5

    bf49fb7c260b15a61c5849a49fdee343

  • SHA1

    059f7b0a2d5f6b18a06f9ccd2995a7ecb9d69b14

  • SHA256

    4733c3841f338c4b95b5226678de7358eaf8604750ee3aa3c3d55ce829db11b3

  • SHA512

    325b8b7c2337493a69160532187177cd8c1bdb0bf341738d1f980f0367fbf68b20693c45721fc9bdf24d5552dfbe144f81607bb5aa68bd778a6e4851f826c938

  • SSDEEP

    12288:PM8dqyq2Kn6B6L/U0uQMf0zR6B8e40fh4E7joIHMopRdeCiL3Oc7mMPku+l0CPP+:kE9BGM0Sf+6arU7jPfvbiL+cZPd+p+

Malware Config

Extracted

Family

vipkeylogger

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:848
    • C:\Users\Admin\AppData\Local\Temp\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\HIROSHIMA STAR - VSL's_DETAILS.docx.scr.exe.log

    Filesize

    1KB

    MD5

    b7b9acb869ccc7f7ecb5304ec0384dee

    SHA1

    6a90751c95817903ee833d59a0abbef425a613b3

    SHA256

    8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

    SHA512

    7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oa1pneu0.bpg.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/848-38-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/848-35-0x0000000006950000-0x000000000699C000-memory.dmp

    Filesize

    304KB

  • memory/848-34-0x0000000006920000-0x000000000693E000-memory.dmp

    Filesize

    120KB

  • memory/848-29-0x0000000006380000-0x00000000066D4000-memory.dmp

    Filesize

    3.3MB

  • memory/848-22-0x00000000062A0000-0x0000000006306000-memory.dmp

    Filesize

    408KB

  • memory/848-23-0x0000000006310000-0x0000000006376000-memory.dmp

    Filesize

    408KB

  • memory/848-21-0x0000000005B50000-0x0000000005B72000-memory.dmp

    Filesize

    136KB

  • memory/848-20-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/848-18-0x0000000005BA0000-0x00000000061C8000-memory.dmp

    Filesize

    6.2MB

  • memory/848-17-0x0000000003000000-0x0000000003036000-memory.dmp

    Filesize

    216KB

  • memory/1484-15-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/1484-12-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/1484-41-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/1484-40-0x00000000068F0000-0x0000000006940000-memory.dmp

    Filesize

    320KB

  • memory/1484-39-0x0000000006AC0000-0x0000000006C82000-memory.dmp

    Filesize

    1.8MB

  • memory/1484-19-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-7-0x00000000065C0000-0x00000000065E6000-memory.dmp

    Filesize

    152KB

  • memory/2208-9-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-8-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2208-10-0x00000000027E0000-0x000000000286E000-memory.dmp

    Filesize

    568KB

  • memory/2208-6-0x0000000005AF0000-0x0000000005AFA000-memory.dmp

    Filesize

    40KB

  • memory/2208-5-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-4-0x00000000050B0000-0x0000000005404000-memory.dmp

    Filesize

    3.3MB

  • memory/2208-3-0x0000000004F30000-0x0000000004FC2000-memory.dmp

    Filesize

    584KB

  • memory/2208-2-0x0000000005440000-0x00000000059E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2208-1-0x0000000000460000-0x0000000000544000-memory.dmp

    Filesize

    912KB

  • memory/2208-11-0x000000000D4F0000-0x000000000D58C000-memory.dmp

    Filesize

    624KB

  • memory/2208-16-0x0000000074630000-0x0000000074DE0000-memory.dmp

    Filesize

    7.7MB

  • memory/2208-0-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB