Analysis

  • max time kernel
    118s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2024 11:58

General

  • Target

    FAT67890000.exe

  • Size

    734KB

  • MD5

    6130fea8d605e639b6bbe21a0769a09a

  • SHA1

    b5392133c960cad99cfa21c56d4b946022759466

  • SHA256

    73298a0854979b419d3178e21ad507fe32df379d5d710426b40d67925d7b70bf

  • SHA512

    d31dda1691fa55344cb4ee40378ac65b649da564fd4364854788a851b5a9e9fcc2c6e4b1e052c24b97df88b460fd92bc2c41a1dad450c960eaf7580320f9a80f

  • SSDEEP

    12288:f2iNCd/06PkU8ymBkbSd292ovKHLoyuintyaYZ4DcZABzJNRXPW4Gsyo9e+sv+Ss:f1MdpRft9suig/4DiAZgTo9eOxj

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 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 22 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FAT67890000.exe
    "C:\Users\Admin\AppData\Local\Temp\FAT67890000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2416
    • 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\FAT67890000.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2984
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SZUzCEysgk.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2728
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SZUzCEysgk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp31DA.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2748
    • C:\Users\Admin\AppData\Local\Temp\FAT67890000.exe
      "C:\Users\Admin\AppData\Local\Temp\FAT67890000.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:2960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp31DA.tmp

    Filesize

    1KB

    MD5

    d1880977e818bdf8fd928827add45fa0

    SHA1

    215031f0d20874c4d033f2572498e5f4e8b441e5

    SHA256

    ca7e27dc2ca2e6b79ff0d1707a584812ca307882f8bdb9919064a30fb92b884d

    SHA512

    a8178c10527042952e56f5e2dd219b698feee3682242d0395ef8845a772b6eb96ec3e85dbe7353afc99358720ec06dccb5366d5418eca6f524b40d39f08b5df5

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XO40M2XETS6DM419PHZV.temp

    Filesize

    7KB

    MD5

    c15812747d8d6e5a67de8749d0a6fa11

    SHA1

    28b8540ae78e5c068dbefee4c3575663c94a21f2

    SHA256

    77773ba2f907cd896d8c7beeb9d6872ae93fcdef763256e084ab13b5309a0ff7

    SHA512

    841f3d89dfeee17df6dcba8b8875dddf46a0286481d8899654f84c17addd4e46ec34d90cc18e1bc8c4f82376a1e8a642d72e3e108b7c9eec4d00ca0d35b1de25

  • memory/2416-0-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2416-1-0x00000000000F0000-0x00000000001AE000-memory.dmp

    Filesize

    760KB

  • memory/2416-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2416-3-0x0000000001F60000-0x0000000001F78000-memory.dmp

    Filesize

    96KB

  • memory/2416-4-0x000000007463E000-0x000000007463F000-memory.dmp

    Filesize

    4KB

  • memory/2416-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2416-6-0x0000000006110000-0x000000000618E000-memory.dmp

    Filesize

    504KB

  • memory/2416-34-0x0000000074630000-0x0000000074D1E000-memory.dmp

    Filesize

    6.9MB

  • memory/2960-27-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-30-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-31-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-32-0x0000000001FF0000-0x0000000002040000-memory.dmp

    Filesize

    320KB

  • memory/2960-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2960-25-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-21-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-23-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB

  • memory/2960-33-0x0000000002040000-0x000000000208E000-memory.dmp

    Filesize

    312KB

  • memory/2960-19-0x0000000000400000-0x0000000000437000-memory.dmp

    Filesize

    220KB