Analysis

  • max time kernel
    1386s
  • max time network
    1177s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-03-2024 19:10

General

  • Target

    NursultanCrack.rar

  • Size

    183KB

  • MD5

    d3ad8d4ecbadea0a2ba6a92e91ed2d2b

  • SHA1

    977368283f90605be222c310d6880fab8478ad7a

  • SHA256

    b9395c6223dd34cdd95dd5c298eb609a806b12f2f2bcf9b0932b47ab564ee591

  • SHA512

    1bd24793905cfd2bad5c2640e1b2f99bc4e7424cb7f6c17a42f69ec3bc04e1aed667d70d94ea4b1b616d3742023742dac60c3714f421402aeecba75ad09e3ba1

  • SSDEEP

    3072:ngYU/sh31YoZfxYguGUb+MTezWxURWy0i9WQcM2ojNZbO/9GM69LOAalm2tJM:gWzuvG++geKQWyZ9okLO/956djalvM

Malware Config

Extracted

Family

xworm

C2

18.ip.gl.ply.gg:54823

Attributes
  • Install_directory

    %Temp%

  • install_file

    svhost.exe

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
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 39 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\NursultanCrack.rar
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\NursultanCrack.rar"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4776
      • C:\Users\Admin\AppData\Local\Temp\7zO8A2480F7\start.exe
        "C:\Users\Admin\AppData\Local\Temp\7zO8A2480F7\start.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:5036
        • C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe
          "C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe"
          4⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3076
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1948
          • 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
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3236
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4484
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3732
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" os get Caption
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4732
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" computersystem get totalphysicalmemory
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1488
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic.exe" csproduct get uuid
            5⤵
              PID:4880
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:3940
            • C:\Windows\System32\Wbem\wmic.exe
              "wmic" path win32_VideoController get name
              5⤵
              • Detects videocard installed
              PID:4424
          • C:\Users\Admin\AppData\Local\Temp\start.exe
            "C:\Users\Admin\AppData\Local\Temp\start.exe"
            4⤵
            • Drops startup file
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:208
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA8C0.tmp.bat""
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1160
              • C:\Windows\system32\timeout.exe
                timeout 3
                6⤵
                • Delays execution with timeout.exe
                PID:4448
        • C:\Users\Admin\AppData\Local\Temp\7zO8A2578A7\start.exe
          "C:\Users\Admin\AppData\Local\Temp\7zO8A2578A7\start.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:4868
          • C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe
            "C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe"
            4⤵
            • Executes dropped EXE
            PID:1796
          • C:\Users\Admin\AppData\Local\Temp\start.exe
            "C:\Users\Admin\AppData\Local\Temp\start.exe"
            4⤵
            • Executes dropped EXE
            PID:4680
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
      1⤵
        PID:1088
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k UnistackSvcGroup
        1⤵
          PID:3108

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          1KB

          MD5

          4c8fa14eeeeda6fe76a08d14e08bf756

          SHA1

          30003b6798090ec74eb477bbed88e086f8552976

          SHA256

          7ebfcfca64b0c1c9f0949652d50a64452b35cefe881af110405cd6ec45f857a5

          SHA512

          116f80182c25cf0e6159cf59a35ee27d66e431696d29ec879c44521a74ab7523cbfdefeacfb6a3298b48788d7a6caa5336628ec9c1d8b9c9723338dcffea4116

        • 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\CLR_v4.0\UsageLogs\start.exe.log

          Filesize

          654B

          MD5

          2ff39f6c7249774be85fd60a8f9a245e

          SHA1

          684ff36b31aedc1e587c8496c02722c6698c1c4e

          SHA256

          e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

          SHA512

          1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

          Filesize

          1KB

          MD5

          b0a78e60bfb279d18fd3d6e7a67411f5

          SHA1

          9344fe3654a14bc66afb9dc6ea215fabfbe5c906

          SHA256

          a28890c82033d3deaf5770ecd1b0239c77321acc93704b1d4b1e167b91e30aeb

          SHA512

          9548be23bec645cd705482f78d43b63659e38cf879c34f7071f42fd86ee02039379a5e92fbe0f1c74c12aaebabdd8002f57eba111d3e855cbd0c89a110e346f2

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

          Filesize

          1KB

          MD5

          3047912af0f04660df1c0e5a7627c9b7

          SHA1

          2a882f6cd8965b0c1e3a7ad34c150102b090082a

          SHA256

          b831b46b481e157e1392f49154c039f8946b25114fab2996ef17d82ab664161e

          SHA512

          844dac407ca77f591b602b05a0064a3c07b75600a55961f2ec815cd3c2c539484d338c5a092a894e6a51f455dbfc1c22b20b8f595d5dcf904b04c0b4adaf0b4d

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

          Filesize

          944B

          MD5

          6d3e9c29fe44e90aae6ed30ccf799ca8

          SHA1

          c7974ef72264bbdf13a2793ccf1aed11bc565dce

          SHA256

          2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

          SHA512

          60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

          Filesize

          948B

          MD5

          7d938922c60b82c232e1dc1d2cb172d6

          SHA1

          8c5546fbca478815e77f5dff30fe00e5e5fd6a9a

          SHA256

          463e9ebf5171ef9ead61019e5fa863ecd958d4390e88079394a98c050ad32a1f

          SHA512

          479ac4d43bcaea8059ff4ae9023e35f81e2d04eba16b3bec76c1b198891b2b8ea27a03e3862ca73dbe2e98dae5538b007df8418f10c2e3f52c93bcbbae10f105

        • C:\Users\Admin\AppData\Local\Temp\7zO8A2480F7\start.exe

          Filesize

          192KB

          MD5

          066f7f594bf6f254748bc19562dd1bc3

          SHA1

          313883f4a7fbfc3c60b153492aeefb927c5d5694

          SHA256

          9398c6385a5246fe4b86b0f247ddb8a93a9c326389dabef1b96bd65af09b360e

          SHA512

          04f0c82938dee7a790876ab39282c36eda0c6de11a337d93f728c07be6ff5997605c6a9bba886b94091c313795ee19bf96d65ca9ac1e1d62eeab7acd33b6afca

        • C:\Users\Admin\AppData\Local\Temp\NursultanStart.exe

          Filesize

          229KB

          MD5

          a635e377a579296af70e52f439465078

          SHA1

          68aff1bf9a48c1d8f326f9ee1d95a795c1b35c35

          SHA256

          11ca4440ffccc6e94fa1536d27eeafdceea8782202a56f3989b19f845d7864ac

          SHA512

          cef30f2e3385399c9659acb6938a68a46401b977cb84c1137cc18dd37009c61a91eeb473a65552bb5585af69ecfadd878db0a0f6bd24584153d9796a3e46db39

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3mdj4vkd.ycz.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\start.exe

          Filesize

          63KB

          MD5

          a48eb52779ecedfcf1c709a232e655cf

          SHA1

          ebe1bf5f87ee23bf74ec52c5bcf134782821c46d

          SHA256

          fecf2e4db113236435acf34c716776d40a447254b344f59ed3c2f99e755b2708

          SHA512

          b37bfb9f7eb15063e452cc7ccf9ed2291f09b985fecba6f983b2cd69736b6fe6bd02074d99f838f8e2ce826b8ee9e810fc7f171e0ac486e4f7ff0f37903ab47c

        • C:\Users\Admin\AppData\Local\Temp\tmpA8C0.tmp.bat

          Filesize

          157B

          MD5

          8a37d0ae7c786f013547cc009252ed08

          SHA1

          6b7ac65df219a13476f633831222c6fc3f3a86e5

          SHA256

          2cc0f2104d2f441b133f17a845f9c8561f8852b7c869c88b2d721b24ab7e9bf1

          SHA512

          400e50189b94196ea8037db08d4b540a762e23d9b99891a3af75fc41453134106cbbbeabbc2bad61775d8f3defff8aabb78ff574a9fdb88222f8260d85e35622

        • memory/208-101-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/208-100-0x00000000027E0000-0x00000000027F0000-memory.dmp

          Filesize

          64KB

        • memory/208-166-0x00000000027E0000-0x00000000027F0000-memory.dmp

          Filesize

          64KB

        • memory/208-169-0x0000000000F50000-0x0000000000F5C000-memory.dmp

          Filesize

          48KB

        • memory/208-36-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/208-177-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/208-34-0x00000000006C0000-0x00000000006D6000-memory.dmp

          Filesize

          88KB

        • memory/1796-167-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/1796-158-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/1948-39-0x000001DC7B990000-0x000001DC7B9A0000-memory.dmp

          Filesize

          64KB

        • memory/1948-38-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/1948-40-0x000001DC7B990000-0x000001DC7B9A0000-memory.dmp

          Filesize

          64KB

        • memory/1948-50-0x000001DC7B3C0000-0x000001DC7B3E2000-memory.dmp

          Filesize

          136KB

        • memory/1948-53-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3076-163-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3076-99-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3076-72-0x0000029BCD4B0000-0x0000029BCD526000-memory.dmp

          Filesize

          472KB

        • memory/3076-74-0x0000029BCD1A0000-0x0000029BCD1BE000-memory.dmp

          Filesize

          120KB

        • memory/3076-123-0x0000029BCD1D0000-0x0000029BCD1DA000-memory.dmp

          Filesize

          40KB

        • memory/3076-73-0x0000029BCD430000-0x0000029BCD480000-memory.dmp

          Filesize

          320KB

        • memory/3076-37-0x0000029BCD1E0000-0x0000029BCD1F0000-memory.dmp

          Filesize

          64KB

        • memory/3076-35-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3076-107-0x0000029BCD1E0000-0x0000029BCD1F0000-memory.dmp

          Filesize

          64KB

        • memory/3076-32-0x0000029BB2D30000-0x0000029BB2D70000-memory.dmp

          Filesize

          256KB

        • memory/3076-127-0x0000029BCD530000-0x0000029BCD542000-memory.dmp

          Filesize

          72KB

        • memory/3108-214-0x00000226505A0000-0x00000226505A1000-memory.dmp

          Filesize

          4KB

        • memory/3108-210-0x0000022650460000-0x0000022650461000-memory.dmp

          Filesize

          4KB

        • memory/3108-213-0x0000022650490000-0x0000022650491000-memory.dmp

          Filesize

          4KB

        • memory/3108-194-0x0000022648140000-0x0000022648150000-memory.dmp

          Filesize

          64KB

        • memory/3108-212-0x0000022650490000-0x0000022650491000-memory.dmp

          Filesize

          4KB

        • memory/3236-68-0x000001F9CB8C0000-0x000001F9CB8D0000-memory.dmp

          Filesize

          64KB

        • memory/3236-70-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3236-57-0x000001F9CB8C0000-0x000001F9CB8D0000-memory.dmp

          Filesize

          64KB

        • memory/3236-56-0x000001F9CB8C0000-0x000001F9CB8D0000-memory.dmp

          Filesize

          64KB

        • memory/3236-55-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3732-105-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3732-106-0x000001C658700000-0x000001C658710000-memory.dmp

          Filesize

          64KB

        • memory/3732-118-0x000001C658700000-0x000001C658710000-memory.dmp

          Filesize

          64KB

        • memory/3732-120-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3940-144-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/3940-141-0x000001DC4AA10000-0x000001DC4AA20000-memory.dmp

          Filesize

          64KB

        • memory/3940-140-0x000001DC4AA10000-0x000001DC4AA20000-memory.dmp

          Filesize

          64KB

        • memory/3940-139-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/4484-104-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/4484-102-0x000001EEADD50000-0x000001EEADD60000-memory.dmp

          Filesize

          64KB

        • memory/4484-76-0x000001EEADD50000-0x000001EEADD60000-memory.dmp

          Filesize

          64KB

        • memory/4484-75-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/4680-165-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB

        • memory/4680-159-0x00007FFD678D0000-0x00007FFD68391000-memory.dmp

          Filesize

          10.8MB