Analysis

  • max time kernel
    208s
  • max time network
    305s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-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

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 1 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 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 32 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:1472
    • 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:3416
      • 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:4860
        • 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:4876
        • 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:2364
        • 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:3712
        • 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:2352
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" os get Caption
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1336
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" computersystem get totalphysicalmemory
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:3416
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          4⤵
            PID:700
          • 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:2108
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            4⤵
            • Detects videocard installed
            PID:1900
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\Windows\.NET\start.cmd" "
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2908
          • 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:3036
        • 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:3112
          • 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:4380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      2KB

      MD5

      627073ee3ca9676911bee35548eff2b8

      SHA1

      4c4b68c65e2cab9864b51167d710aa29ebdcff2e

      SHA256

      85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

      SHA512

      3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

      Filesize

      944B

      MD5

      aa6b748cd8f3e3c0e41549529b919e21

      SHA1

      5a4b9721f9fb5042f6ef7afd698d5ac5216a88bb

      SHA256

      d7d665a42f940443efb28eb231dfe1c4062394e71fba145d6eea9ec075b0f0e8

      SHA512

      361c523f49428a7e430279099e669a1a8af8764653f42e83105c0da3f8e8dd3be6c1719ea8c158d8f2e8425d74457147a4683190eb4a67019b9d02be44c13534

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

      Filesize

      948B

      MD5

      6aa2fca4712a213a6961a9b42cedaadb

      SHA1

      81da2cba9f21527a1ee07596d0a5a8c11c27ec84

      SHA256

      818ba8689d5e1508fbd0f1183ec4cd7b920236975243b5c8a7c69ae1ce06a6b8

      SHA512

      69f5a0fe0a020f027bcf16e30735e2e7983b4ba89360304ff05a2bb6c375b186730f575e0ba2fde6c5f3d95d256ec70a42cca62bcfa0e9c7a263b207c9c183e8

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

      Filesize

      1KB

      MD5

      7332074ae2b01262736b6fbd9e100dac

      SHA1

      22f992165065107cc9417fa4117240d84414a13c

      SHA256

      baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

      SHA512

      4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

      Filesize

      1KB

      MD5

      00b5dac0faabd946e46411c68c4e4b54

      SHA1

      ebffe4f7312c6a3ea1a5bfb8e36e3716b73a71de

      SHA256

      ba0bccd5b683d96eda6d4000424147e0dddaa1e6c87dd65566721f4552397133

      SHA512

      25a291425f8ac169440d5a6250b2eae67261d599bd35aa3e02c742deed5aedea7d4e88910947116068759e3b8cb5fd82c29b6360d86b663fc536b09bd69ac9c0

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

      Filesize

      944B

      MD5

      e3840d9bcedfe7017e49ee5d05bd1c46

      SHA1

      272620fb2605bd196df471d62db4b2d280a363c6

      SHA256

      3ac83e70415b9701ee71a4560232d7998e00c3db020fde669eb01b8821d2746f

      SHA512

      76adc88ab3930acc6b8b7668e2de797b8c00edcfc41660ee4485259c72a8adf162db62c2621ead5a9950f12bfe8a76ccab79d02fda11860afb0e217812cac376

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zv3pq241.c1b.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • 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/1472-0-0x0000000000DC0000-0x0000000000DFC000-memory.dmp

      Filesize

      240KB

    • memory/1472-2-0x000000001BFC0000-0x000000001BFD0000-memory.dmp

      Filesize

      64KB

    • memory/1472-17-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/1472-1-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/1912-203-0x000000001B2B0000-0x000000001B2C0000-memory.dmp

      Filesize

      64KB

    • memory/1912-50-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/1912-132-0x000000001B2B0000-0x000000001B2C0000-memory.dmp

      Filesize

      64KB

    • memory/1912-87-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/1912-48-0x0000000000510000-0x0000000000536000-memory.dmp

      Filesize

      152KB

    • memory/2108-193-0x0000027623720000-0x0000027623730000-memory.dmp

      Filesize

      64KB

    • memory/2108-194-0x0000027623720000-0x0000027623730000-memory.dmp

      Filesize

      64KB

    • memory/2108-197-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2108-192-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2352-178-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2352-176-0x000001A4D6A00000-0x000001A4D6A10000-memory.dmp

      Filesize

      64KB

    • memory/2352-166-0x000001A4D6A00000-0x000001A4D6A10000-memory.dmp

      Filesize

      64KB

    • memory/2352-165-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2364-133-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2364-84-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/2364-131-0x00000187F1950000-0x00000187F1960000-memory.dmp

      Filesize

      64KB

    • memory/2364-86-0x00000187F1950000-0x00000187F1960000-memory.dmp

      Filesize

      64KB

    • memory/2364-128-0x00000187F1950000-0x00000187F1960000-memory.dmp

      Filesize

      64KB

    • memory/2364-127-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3036-78-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3036-64-0x00000281CB890000-0x00000281CB8A0000-memory.dmp

      Filesize

      64KB

    • memory/3036-62-0x00000281CB7B0000-0x00000281CB7D2000-memory.dmp

      Filesize

      136KB

    • memory/3036-63-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3036-53-0x00000281CB890000-0x00000281CB8A0000-memory.dmp

      Filesize

      64KB

    • memory/3112-100-0x0000020332290000-0x00000203322A0000-memory.dmp

      Filesize

      64KB

    • memory/3112-89-0x0000020332290000-0x00000203322A0000-memory.dmp

      Filesize

      64KB

    • memory/3112-88-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3112-102-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3416-16-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3416-18-0x0000000000A40000-0x0000000000A82000-memory.dmp

      Filesize

      264KB

    • memory/3416-19-0x000000001BC70000-0x000000001BC80000-memory.dmp

      Filesize

      64KB

    • memory/3416-49-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3712-139-0x000001B06A470000-0x000001B06A480000-memory.dmp

      Filesize

      64KB

    • memory/3712-156-0x000001B06A470000-0x000001B06A480000-memory.dmp

      Filesize

      64KB

    • memory/3712-164-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3712-138-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/3712-140-0x000001B06A470000-0x000001B06A480000-memory.dmp

      Filesize

      64KB

    • memory/4380-126-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4380-114-0x000002084ACB0000-0x000002084ACC0000-memory.dmp

      Filesize

      64KB

    • memory/4380-113-0x000002084ACB0000-0x000002084ACC0000-memory.dmp

      Filesize

      64KB

    • memory/4380-115-0x000002084ACB0000-0x000002084ACC0000-memory.dmp

      Filesize

      64KB

    • memory/4380-124-0x000002084ACB0000-0x000002084ACC0000-memory.dmp

      Filesize

      64KB

    • memory/4380-112-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4860-181-0x000002DD7C050000-0x000002DD7C062000-memory.dmp

      Filesize

      72KB

    • memory/4860-47-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4860-85-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4860-202-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4860-135-0x000002DD7C2E0000-0x000002DD7C356000-memory.dmp

      Filesize

      472KB

    • memory/4860-34-0x000002DD79AB0000-0x000002DD79AFE000-memory.dmp

      Filesize

      312KB

    • memory/4860-52-0x000002DD7C080000-0x000002DD7C090000-memory.dmp

      Filesize

      64KB

    • memory/4860-180-0x000002DD7BFC0000-0x000002DD7BFCA000-memory.dmp

      Filesize

      40KB

    • memory/4860-90-0x000002DD7C080000-0x000002DD7C090000-memory.dmp

      Filesize

      64KB

    • memory/4860-136-0x000002DD7BFE0000-0x000002DD7C030000-memory.dmp

      Filesize

      320KB

    • memory/4860-137-0x000002DD7C360000-0x000002DD7C37E000-memory.dmp

      Filesize

      120KB

    • memory/4876-65-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4876-74-0x000002B2551F0000-0x000002B255200000-memory.dmp

      Filesize

      64KB

    • memory/4876-83-0x00007FF992CC0000-0x00007FF993782000-memory.dmp

      Filesize

      10.8MB

    • memory/4876-75-0x000002B2551F0000-0x000002B255200000-memory.dmp

      Filesize

      64KB

    • memory/4876-79-0x000002B2551F0000-0x000002B255200000-memory.dmp

      Filesize

      64KB