Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2024 01:31

General

  • Target

    b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe

  • Size

    751KB

  • MD5

    102c9ce1c659517c4ea924c2044305b7

  • SHA1

    942b0a7e2077eca38b9b6ff16d89722cbbbf7002

  • SHA256

    b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310

  • SHA512

    eca6ed6a871e9fbee67feb73534bff544f052d6b3e1058a68b4602f159f089193f0f576384e6cd49373d50200d71bb4aeadd151c0fb81a77a6246849af2f39f6

  • SSDEEP

    12288:L3TmP4kyFSnIZgc1D7COp2JwlmsxS4kZHtfi390V+KA7rC7LOmDZ:2gBOI9D7CO0JqTSRNfiQsG7LOmD

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.

  • 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\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
    "C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2860
    • 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\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2776
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AcEnrS.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AcEnrS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1304.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2808
    • C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
      "C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.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:1692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1304.tmp

    Filesize

    1KB

    MD5

    57f2ee8c2486154c08544330ea9356c7

    SHA1

    55ec1eae5e76d37adb765ba98eaf8507cc3cb4ef

    SHA256

    09c854ea0eb675ca3865116b3a3869cc2674b02d2b355fa673e38b2f5ae94639

    SHA512

    8b1bed125bdd527611f1b14e5f7f0463500f769e7cf00837cb86843f5d08e6e444a9b98dbad22a8e7bd8c1a01ebb4ffd3b95adea76f31b33a0f21ba70d2c6010

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\Y6MZ7C85G1KRCXDLSGSZ.temp

    Filesize

    7KB

    MD5

    574b091eee3162d6cc458026f780830e

    SHA1

    997be06be743e540d6e119aa4b0be7c8d2deb00d

    SHA256

    f7f8085d911b52ee4203fe2b54ff025fc844eb6e0593da3a4c6fe38aa11fb99b

    SHA512

    425351f88e2d1b2e7d7ae7a9aadc9eacf906bbc1d2844cebe51466f25eb688ad74d35e0e40659f86a3ca5acd5d3d8c047be7bd35c12c553d49788649d33fb2a9

  • memory/1692-28-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-31-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-20-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-21-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-25-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1692-29-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/1692-24-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/2860-6-0x0000000004080000-0x000000000410C000-memory.dmp

    Filesize

    560KB

  • memory/2860-1-0x0000000000BB0000-0x0000000000C72000-memory.dmp

    Filesize

    776KB

  • memory/2860-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

    Filesize

    4KB

  • memory/2860-2-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB

  • memory/2860-3-0x00000000009A0000-0x00000000009BE000-memory.dmp

    Filesize

    120KB

  • memory/2860-5-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB

  • memory/2860-4-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

    Filesize

    4KB

  • memory/2860-32-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB