Analysis

  • max time kernel
    121s
  • max time network
    306s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-03-2024 12:02

General

  • Target

    5a513e62b9e97d52553248d22e37f25f.exe

  • Size

    215KB

  • MD5

    022cd619c82b6c15b502afbfeec6debf

  • SHA1

    cbb40b18c6ee74346efab7ac2a1e69100b6c3e00

  • SHA256

    f13ef71b6d5e9a6872adb20673aa42a6d7cc6ab305bd20bc8fed059a6597f29f

  • SHA512

    01f997451d33002d8502209afd816b7b6e5a3bc964230da351d70c11e0f144390cdf276b850f13815f414f92370bf6cfd89231eb4b9b1a75b4a8b8bb7f307758

  • SSDEEP

    6144:oDAi86jCtMC5q+gXctZ8eGJ8rhNb8Imc:o0T6DCPxeJMx8+

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1211176678466916392/99VOwP9dc7iQz2Is-QlZ872KZaiUa4r3sEvXqZ6NmS-fFuTojiUjOg2SjIUWBCIoPNFA

Extracted

Family

xworm

C2

hai1723rat-60039.portmap.io:60039

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Xworm

    Xworm is a remote access trojan written in C#.

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a513e62b9e97d52553248d22e37f25f.exe
    "C:\Users\Admin\AppData\Local\Temp\5a513e62b9e97d52553248d22e37f25f.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2948
    • C:\Windows\.NET\explorer.exe
      "C:\Windows\.NET\explorer.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2548
      • C:\Windows\.NET\controllloader.exe
        "C:\Windows\.NET\controllloader.exe"
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2428
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Windows\.NET\controllloader.exe'
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2660
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2176
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1444
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1628
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" os get Caption
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:840
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1880
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          4⤵
            PID:1168
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2656
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            4⤵
            • Detects videocard installed
            PID:440
        • C:\Windows\system32\cmd.exe
          cmd /c ""C:\Windows\.NET\start.cmd" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1876
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Windows\.NET\'"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2816
        • C:\Windows\.NET\systemload.exe
          "C:\Windows\.NET\systemload.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1912
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\.NET\systemload.exe'
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1520
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'systemload.exe'
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1108
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      1⤵
        PID:2964
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:2468

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

          Filesize

          7KB

          MD5

          430714e25a3d30e5e292f62148c59012

          SHA1

          9fbcb29f13f4fcea9aead24dd6ee4ea1d701a7b6

          SHA256

          a2e138d53a6eac90fa40ef373c38de1892bd018fd18a1d70ef1c1747f094b343

          SHA512

          301c15ee176b3d6a0801887c2fdba7293d12a79bb5544660ae4fb21286fb6b42afee6845410f8c5f7163f3c7f1907082a3d33748d262d2b3c1ec0d53f2040394

        • C:\Windows\.NET\controllloader.exe

          Filesize

          286KB

          MD5

          e41a0fa0c1e39af92d22090d4df61a1f

          SHA1

          c971a4089b1ab116c34b5ab0dc54d9977f86e834

          SHA256

          c0966533c2bc8c8b9ee176d774eae0ca1c4d6fe6e8efe5d87d4cac8c04b84372

          SHA512

          d42798fa9115f3c3775798a26ef7c28e4f173bdc2b74884b01a4e7905b17a2da09508766a626652eec3622a15a891b6859f4e9a422eb052a59b3fd3eafe1a7fd

        • C:\Windows\.NET\explorer.exe

          Filesize

          245KB

          MD5

          6e582594dff7429cd41f7cd46fba7970

          SHA1

          d91416e8a80c3ba9db036218921a976bab5e651b

          SHA256

          0bb6471d08e761a6ba31f6b9bc54f1b039dc15dd17faa1e7c996baebd08eb33c

          SHA512

          64ed27a592c4f0aca400e4a61c571326882a24c044afe0303c2a090e5f5d38a7fa97ff9fbdf85b0a0a657e96991818692688c1179a38c2903c562fc2a179115b

        • C:\Windows\.NET\start.cmd

          Filesize

          93B

          MD5

          f960abd9684a879e8eca03b8c864ea96

          SHA1

          fb4b9a9b40af84ae46b70bb40ac3e1f45e4b4ad3

          SHA256

          7389178da21f4e2d4ef73ab199b7beeb97247a6c1afec3f3c48a7f561cbfaf90

          SHA512

          2c6267ab25c364c5b13059ed593bb47dfae586ae7b1411634efa3f45aaf07b4d8f491fe93bfd34482a1250c955f1e8c27e1afa0460672a5e9584ebe007ab2054

        • C:\Windows\.NET\systemload.exe

          Filesize

          130KB

          MD5

          352a162df9ca5605e1a1910c7a24cb7c

          SHA1

          4b4ed1c740a03c15eb47d875b65c76941debcaf7

          SHA256

          87e9d9a7a197a0cd483f8e73f307af53a7518cabc001257c8235743181b9a7b8

          SHA512

          0c2bae3f66748cc3448eaf60c5079ae3afba6d585e19e54857f7c152a1bd69c3b8e3df7feb413f3eb2df0f2bc01b44be5bcdefd5427af154a221f2b808a2399d

        • memory/1108-98-0x00000000024C0000-0x0000000002540000-memory.dmp

          Filesize

          512KB

        • memory/1108-89-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1108-93-0x00000000024C0000-0x0000000002540000-memory.dmp

          Filesize

          512KB

        • memory/1108-88-0x00000000024C0000-0x0000000002540000-memory.dmp

          Filesize

          512KB

        • memory/1108-87-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1108-101-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1108-84-0x000000001B360000-0x000000001B642000-memory.dmp

          Filesize

          2.9MB

        • memory/1444-117-0x00000000022B0000-0x0000000002330000-memory.dmp

          Filesize

          512KB

        • memory/1444-116-0x000007FEEE0E0000-0x000007FEEEA7D000-memory.dmp

          Filesize

          9.6MB

        • memory/1444-118-0x000007FEEE0E0000-0x000007FEEEA7D000-memory.dmp

          Filesize

          9.6MB

        • memory/1444-119-0x00000000022B0000-0x0000000002330000-memory.dmp

          Filesize

          512KB

        • memory/1444-121-0x000007FEEE0E0000-0x000007FEEEA7D000-memory.dmp

          Filesize

          9.6MB

        • memory/1444-120-0x00000000022B0000-0x0000000002330000-memory.dmp

          Filesize

          512KB

        • memory/1520-69-0x0000000001CD0000-0x0000000001D50000-memory.dmp

          Filesize

          512KB

        • memory/1520-65-0x0000000001CD0000-0x0000000001D50000-memory.dmp

          Filesize

          512KB

        • memory/1520-71-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1520-66-0x0000000001CD0000-0x0000000001D50000-memory.dmp

          Filesize

          512KB

        • memory/1520-55-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1520-57-0x0000000001CD0000-0x0000000001D50000-memory.dmp

          Filesize

          512KB

        • memory/1520-62-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1628-127-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1628-128-0x0000000002AA0000-0x0000000002B20000-memory.dmp

          Filesize

          512KB

        • memory/1628-129-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/1628-130-0x0000000002AA0000-0x0000000002B20000-memory.dmp

          Filesize

          512KB

        • memory/1912-102-0x000000001AFA0000-0x000000001B020000-memory.dmp

          Filesize

          512KB

        • memory/1912-96-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/1912-33-0x0000000000110000-0x0000000000136000-memory.dmp

          Filesize

          152KB

        • memory/1912-34-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2176-90-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2176-100-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2176-97-0x0000000002560000-0x00000000025E0000-memory.dmp

          Filesize

          512KB

        • memory/2176-95-0x0000000002560000-0x00000000025E0000-memory.dmp

          Filesize

          512KB

        • memory/2176-99-0x0000000002560000-0x00000000025E0000-memory.dmp

          Filesize

          512KB

        • memory/2176-94-0x0000000002560000-0x00000000025E0000-memory.dmp

          Filesize

          512KB

        • memory/2176-85-0x00000000022E0000-0x00000000022E8000-memory.dmp

          Filesize

          32KB

        • memory/2176-92-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2176-91-0x0000000002560000-0x00000000025E0000-memory.dmp

          Filesize

          512KB

        • memory/2428-115-0x000000001B210000-0x000000001B290000-memory.dmp

          Filesize

          512KB

        • memory/2428-32-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2428-86-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2428-29-0x0000000001260000-0x00000000012AE000-memory.dmp

          Filesize

          312KB

        • memory/2548-11-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2548-9-0x0000000000CF0000-0x0000000000D32000-memory.dmp

          Filesize

          264KB

        • memory/2548-12-0x000000001BC40000-0x000000001BCC0000-memory.dmp

          Filesize

          512KB

        • memory/2548-35-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2660-67-0x0000000002490000-0x0000000002510000-memory.dmp

          Filesize

          512KB

        • memory/2660-63-0x0000000002490000-0x0000000002510000-memory.dmp

          Filesize

          512KB

        • memory/2660-72-0x0000000002490000-0x0000000002510000-memory.dmp

          Filesize

          512KB

        • memory/2660-68-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2660-70-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2660-64-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2816-47-0x0000000002880000-0x0000000002900000-memory.dmp

          Filesize

          512KB

        • memory/2816-54-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2816-48-0x0000000002880000-0x0000000002900000-memory.dmp

          Filesize

          512KB

        • memory/2816-46-0x0000000002880000-0x0000000002900000-memory.dmp

          Filesize

          512KB

        • memory/2816-45-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2816-44-0x0000000002880000-0x0000000002900000-memory.dmp

          Filesize

          512KB

        • memory/2816-43-0x000007FEEEA80000-0x000007FEEF41D000-memory.dmp

          Filesize

          9.6MB

        • memory/2816-42-0x00000000023E0000-0x00000000023E8000-memory.dmp

          Filesize

          32KB

        • memory/2816-41-0x000000001B3A0000-0x000000001B682000-memory.dmp

          Filesize

          2.9MB

        • memory/2948-0-0x0000000000170000-0x00000000001AC000-memory.dmp

          Filesize

          240KB

        • memory/2948-10-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB

        • memory/2948-2-0x000000001BA70000-0x000000001BAF0000-memory.dmp

          Filesize

          512KB

        • memory/2948-1-0x000007FEF56F0000-0x000007FEF60DC000-memory.dmp

          Filesize

          9.9MB