Analysis

  • max time kernel
    120s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-12-2024 13:06

General

  • Target

    Hesap_Hareketleri_09122024_html.exe

  • Size

    978KB

  • MD5

    a1d6c4ee5e1bf8e8e8e335e25e3cb4ef

  • SHA1

    d55f64167243a1211ad7b3f51174c70f2d3d1c3d

  • SHA256

    0b0e33a49e209932b6fa85be230050e28ed46e35129a3b4b0b6f782ac4849f21

  • SHA512

    be8182bf4b9bef516dc113b05b2c3d0f834c1d8bb40f266da9948e23339ea94a2c63484f335da46410d5e6e291f997a2e9e2dfc32da73cd51db0fb053fea44c8

  • SSDEEP

    12288:Kfe0GVO35OOvzI/wDadTZoieenOIbgIC+Ukq09xZmFP85h7ScC3:Kff3c4uWadT+i3/bTUkqc8P8zSc

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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • 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 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe
    "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2212
    • 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\Hesap_Hareketleri_09122024_html.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2468
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EfgRyiVrT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2760
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EfgRyiVrT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp148.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2816
    • C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.exe
      "C:\Users\Admin\AppData\Local\Temp\Hesap_Hareketleri_09122024_html.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:2872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp148.tmp

    Filesize

    1KB

    MD5

    76e61755bd748d974d4c42122aa1abf6

    SHA1

    ec9d1017772b7102789a52a0be8936d519fe827c

    SHA256

    e81baad447f37c058d6fbb7267d5c32debb8994226517e2a6b784cd317bd3465

    SHA512

    c78f6123436776575dddeb3c5454d08344f65896aa11140b4ce6779e2af4716bb57fcde31565162ea18c988b1507bd8f5f6d037a544fdec58ade380e306ffd84

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    9afeeab1a58173ea23ab5a6377ea1098

    SHA1

    b54a8088bd2155b899b4bed1c922614bb09ea536

    SHA256

    860b0f0c920106eb25959474ee6941ff04f499e8e68bf9d4f490a58c95547b06

    SHA512

    7091f669694f3775289c3b8a470d85d46d88abe4e75213fbd39bfe36ba435dcc771c84be6417d0eb8e986254d212909057a0abd6b55b20fbad8658537e38977e

  • memory/2212-4-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2212-31-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/2212-5-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-6-0x0000000005D20000-0x0000000005DAE000-memory.dmp

    Filesize

    568KB

  • memory/2212-2-0x00000000749D0000-0x00000000750BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-1-0x0000000001370000-0x000000000146A000-memory.dmp

    Filesize

    1000KB

  • memory/2212-3-0x00000000002F0000-0x000000000030E000-memory.dmp

    Filesize

    120KB

  • memory/2872-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-23-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-30-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-29-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-28-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2872-25-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/2872-21-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB