Analysis

  • max time kernel
    130s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-10-2024 01:47

General

  • Target

    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe

  • Size

    857KB

  • MD5

    3bc8fe52f28307cf921da1f1bdc448fb

  • SHA1

    0a213e9c8ace169379f108ccba01793ddcdc07f0

  • SHA256

    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd

  • SHA512

    660d600323d9cfacbbca1f897d66e517693d10a316edc59e95ed02532a46dde7d7d0af0dbc9b750e3ee70bc0cf1b74fbc7fd7bcb2a257ea5d22c704b212353e3

  • SSDEEP

    24576:deq38JBG088vRAwGdZHczQh3Xq6iLlCFEY:2XG78ijFXq6iLsKY

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.

  • 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 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
    "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4436
    • 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\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EUjCRllSu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4576
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EUjCRllSu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3904
    • C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.exe
      "C:\Users\Admin\AppData\Local\Temp\c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd.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:1192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    b07cbebed156f71aa1f3fcd4df52f1be

    SHA1

    0cf8ba039cf015dead5c3721e9e0d240d98eed9a

    SHA256

    8c991078b6eed5e5e234cbdafc4f3d2e64671dd092cbada1b2952038c4f6fd62

    SHA512

    f013603fa3e6029da6cb866ba877b68824eecd6e32f9524881ac921d874d0c8423441c388ca3963f9e6c2d4b337e56916f1adea389e5d57c42b508defd2a523f

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zwfhylzo.0gp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE753.tmp

    Filesize

    1KB

    MD5

    b5fefbfea2139c4caccfcfe727f059d1

    SHA1

    90432fd3e9263281da0da7d8b596a60a13128360

    SHA256

    6c2c214c7860977e9ffcbb70ca8e30a698149ad87e481ac234074b0a14bc7b20

    SHA512

    23106ca18615d9d26f3e3fbf327c9f1fcabe7da24712c18fab9090213bc3cdc585ab94e14fc18633388c9abd0321bd9a3eb61f71ec6e2a7f21a001a64508d373

  • memory/1192-90-0x0000000006770000-0x00000000067C0000-memory.dmp

    Filesize

    320KB

  • memory/1192-89-0x00000000068E0000-0x0000000006AA2000-memory.dmp

    Filesize

    1.8MB

  • memory/1192-45-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4424-16-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

    Filesize

    216KB

  • memory/4424-78-0x00000000079F0000-0x00000000079FE000-memory.dmp

    Filesize

    56KB

  • memory/4424-87-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-81-0x0000000007AE0000-0x0000000007AE8000-memory.dmp

    Filesize

    32KB

  • memory/4424-15-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-73-0x0000000007E00000-0x000000000847A000-memory.dmp

    Filesize

    6.5MB

  • memory/4424-17-0x0000000005550000-0x0000000005B78000-memory.dmp

    Filesize

    6.2MB

  • memory/4424-18-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4424-71-0x0000000006A50000-0x0000000006A6E000-memory.dmp

    Filesize

    120KB

  • memory/4424-50-0x0000000007420000-0x0000000007452000-memory.dmp

    Filesize

    200KB

  • memory/4424-51-0x0000000070AE0000-0x0000000070B2C000-memory.dmp

    Filesize

    304KB

  • memory/4424-48-0x00000000064A0000-0x00000000064BE000-memory.dmp

    Filesize

    120KB

  • memory/4436-0-0x000000007455E000-0x000000007455F000-memory.dmp

    Filesize

    4KB

  • memory/4436-1-0x00000000005E0000-0x00000000006BC000-memory.dmp

    Filesize

    880KB

  • memory/4436-7-0x0000000005250000-0x000000000525E000-memory.dmp

    Filesize

    56KB

  • memory/4436-2-0x0000000005650000-0x0000000005BF4000-memory.dmp

    Filesize

    5.6MB

  • memory/4436-6-0x0000000005360000-0x00000000053FC000-memory.dmp

    Filesize

    624KB

  • memory/4436-5-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4436-47-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4436-9-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4436-3-0x00000000050A0000-0x0000000005132000-memory.dmp

    Filesize

    584KB

  • memory/4436-4-0x0000000005160000-0x000000000516A000-memory.dmp

    Filesize

    40KB

  • memory/4436-10-0x00000000066E0000-0x000000000676C000-memory.dmp

    Filesize

    560KB

  • memory/4436-8-0x000000007455E000-0x000000007455F000-memory.dmp

    Filesize

    4KB

  • memory/4576-23-0x00000000057D0000-0x0000000005836000-memory.dmp

    Filesize

    408KB

  • memory/4576-61-0x0000000070AE0000-0x0000000070B2C000-memory.dmp

    Filesize

    304KB

  • memory/4576-74-0x00000000079A0000-0x00000000079BA000-memory.dmp

    Filesize

    104KB

  • memory/4576-19-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4576-75-0x0000000007A10000-0x0000000007A1A000-memory.dmp

    Filesize

    40KB

  • memory/4576-76-0x0000000007C20000-0x0000000007CB6000-memory.dmp

    Filesize

    600KB

  • memory/4576-77-0x0000000007BA0000-0x0000000007BB1000-memory.dmp

    Filesize

    68KB

  • memory/4576-21-0x00000000055C0000-0x00000000055E2000-memory.dmp

    Filesize

    136KB

  • memory/4576-79-0x0000000007BE0000-0x0000000007BF4000-memory.dmp

    Filesize

    80KB

  • memory/4576-72-0x0000000007690000-0x0000000007733000-memory.dmp

    Filesize

    652KB

  • memory/4576-80-0x0000000007CE0000-0x0000000007CFA000-memory.dmp

    Filesize

    104KB

  • memory/4576-24-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4576-49-0x0000000006710000-0x000000000675C000-memory.dmp

    Filesize

    304KB

  • memory/4576-35-0x00000000060D0000-0x0000000006424000-memory.dmp

    Filesize

    3.3MB

  • memory/4576-88-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB

  • memory/4576-22-0x0000000005760000-0x00000000057C6000-memory.dmp

    Filesize

    408KB

  • memory/4576-34-0x0000000074550000-0x0000000074D00000-memory.dmp

    Filesize

    7.7MB