Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250410-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/04/2025, 11:23

General

  • Target

    dsfResult.exe

  • Size

    2.3MB

  • MD5

    ca93060ae27c34849c7e65dc0da210fc

  • SHA1

    5c589772ee781c45d26b903a5555784ceb8e7e85

  • SHA256

    28163caef95204c2ab19d97d52978de33323d65196bd2056c6dc06e15f755eba

  • SHA512

    4f9831d35f73b5921d00d5f9693cd46491b692e49a9a30ea85e5710fa11be97f11107db748f25e304564de5a925494ed43eafd576f063f75af342f7809dd4d0e

  • SSDEEP

    49152:+4TW5myjkHicujBk84J8bOdiIMYvLl88d971/Ka1yn:+4y5LjkCNjBkN8KA7YvLld99lsn

Malware Config

Extracted

Family

umbral

C2

https://discord.com/api/webhooks/1360210646112665720/qXg1qF4JZ6j3Rqqts-_rZSbjGedO1RuAq7HLooe-TstGKKIib9a91A7sjYj3Xa-Dhtsc

Signatures

  • Detect Umbral payload 3 IoCs
  • Umbral

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

  • Umbral family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 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.

  • 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 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Detects videocard installed 1 TTPs 1 IoCs

    Uses WMIC.exe to determine videocard installed.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dsfResult.exe
    "C:\Users\Admin\AppData\Local\Temp\dsfResult.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3740
    • C:\Users\Admin\AppData\Local\Temp\.exe
      "C:\Users\Admin\AppData\Local\Temp\.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1660
    • C:\Users\Admin\AppData\Local\Temp\Client.exe
      "C:\Users\Admin\AppData\Local\Temp\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4384
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Security Essentials" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4204
        • C:\Windows\system32\schtasks.exe
          SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Microsoft Security Essentials" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe"
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1644
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "Adobe Photoshop Upgrade" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" /RL HIGHEST & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4896
        • C:\Windows\system32\schtasks.exe
          SchTaSKs /create /f /sc minute /mo -1 /tn "Adobe Photoshop Upgrade" /tr "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\xdwdAudacity.exe" /RL HIGHEST
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5976
    • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
      "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3856
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:4612
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:4732
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4820
      • 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
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5708
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1740
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3492
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" os get Caption
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5592
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" computersystem get totalphysicalmemory
        3⤵
          PID:5220
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic.exe" csproduct get uuid
          3⤵
            PID:1612
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
            3⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:5676
          • C:\Windows\System32\Wbem\wmic.exe
            "wmic" path win32_VideoController get name
            3⤵
            • Detects videocard installed
            PID:372
          • C:\Windows\SYSTEM32\cmd.exe
            "cmd.exe" /c ping localhost && del /F /A h "C:\Users\Admin\AppData\Local\Temp\Umbral.exe" && pause
            3⤵
            • System Network Configuration Discovery: Internet Connection Discovery
            • Suspicious use of WriteProcessMemory
            PID:2796
            • C:\Windows\system32\PING.EXE
              ping localhost
              4⤵
              • System Network Configuration Discovery: Internet Connection Discovery
              • Runs ping.exe
              PID:4772
      • C:\Windows\system32\wbem\WmiApSrv.exe
        C:\Windows\system32\wbem\WmiApSrv.exe
        1⤵
          PID:3168

        Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          1KB

          MD5

          547df619456b0e94d1b7663cf2f93ccb

          SHA1

          8807c99005eaf2cc44b0b5ec4fc6eac289bfb4e3

          SHA256

          8b7130cc966f3f78e236b4e51eb12e1c82b0bd3f0773275d619b5c545168797a

          SHA512

          01b4e32fdf6c7f2347075c8153bc75a2f32fe3cec19e1a777e263ec4f607b54e046f0e4c7c0bc22581d44cbbdbb076a63eaa50a742f381faad06c86c2b10f67f

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

          Filesize

          1KB

          MD5

          548dd08570d121a65e82abb7171cae1c

          SHA1

          1a1b5084b3a78f3acd0d811cc79dbcac121217ab

          SHA256

          cdf17b8532ebcebac3cfe23954a30aa32edd268d040da79c82687e4ccb044adc

          SHA512

          37b98b09178b51eec9599af90d027d2f1028202efc1633047e16e41f1a95610984af5620baac07db085ccfcb96942aafffad17aa1f44f63233e83869dc9f697b

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

          Filesize

          1KB

          MD5

          ca58d1913d3261f116a299095e04f734

          SHA1

          941d13d0c8c65adb6513f23991acfa0d62facdea

          SHA256

          755daf72f2f5e983abb009c3b1eef4c7c660999f5ff581545bbcae7088c17c69

          SHA512

          87b0d8c9a5348235e9ad6416e09665764db1af408bf763857dc40e39411fa0cf405e3e8b9f0b8540c72aa874059d1dee865aa0cff8dba0fde5779ec9480b5e40

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

          Filesize

          64B

          MD5

          ce259b9f879a204d7410496b1ec29798

          SHA1

          7a5288e05aad55389767bc5fd818082e73ac38b4

          SHA256

          d96c1037a430b82b10a3db99ba0ca95a5a09eb1750632a6c8e62a11bb8883694

          SHA512

          88c799a9da50c11849851b79f90b5418a00c5a3e708faf7e421bce710dc9638b5bb48693ef44de674eaca7b2149e7ed9cd0b93e0eea6926a40fe449ba8f78006

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

          Filesize

          944B

          MD5

          efa4168b73a5e8ae56d49bcac4d67861

          SHA1

          b3fe6b2d9fc05ad7892a2c8b96914764336b3067

          SHA256

          7aab157fba3a543647a38cc8729ffb962a58cc2093d94566c9e68ff73d134dca

          SHA512

          a1f305eac9c73c951f22e76f3904c1c6bb518b12d8a74bbea544c845f3d592e7915ec47d6531a3a4e669f6ab12311f3a632ff47a68f36370111d1c82cf8b6e99

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

          Filesize

          948B

          MD5

          74a6b79d36b4aae8b027a218bc6e1af7

          SHA1

          0350e46c1df6934903c4820a00b0bc4721779e5f

          SHA256

          60c64f6803d7ad1408d0a8628100470859b16ef332d5f1bd8bb2debe51251d04

          SHA512

          60e71435a9a23f4c144d641844f4182ddc9aa4ccd3e99232149a187112dce96458aab9587e9fea46f5dc5a52f5ca758969a04657a2b5b10241d3e4554f7c85e0

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

          Filesize

          1.8MB

          MD5

          d421ffd2ba591f56d43f601deeec09c5

          SHA1

          39c58fe62e2e6110d46a51eff235d69cae92e034

          SHA256

          dae32a49b6052f0ec70895dd4e35b2b26222f7f4c19c36d9d309033e2fb622bc

          SHA512

          abdfa8bfcedcc45528630a1c9ec618fe1ef013de2b13e10327598ed31e4fae0897d97d565111b02bc8fefc822120be9c7a24ce0a98fbf586f7fe00ea555be0bd

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

          Filesize

          228KB

          MD5

          9d13457fe2154ed1c7c5d080b4e89d75

          SHA1

          813a1143530624a7ebb51eb041d8ab1b1349c428

          SHA256

          4433cbb68bb1948a9093af9d3e4ca43dd9d2e8ab1eb4ef172c84a18122211dbb

          SHA512

          4665ce02912a5d27a847b91fc7dc1a1cd215febe16fa2bd9d90694a9ce45d5475255cdd0d9e2d57c00b61bbdd94ffce6e71227d04530544591043216be48341b

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

          Filesize

          231KB

          MD5

          e4b51d29d135168fc262065999c10f6a

          SHA1

          8f7d8872ee04c47af338ea0fe8480a3e5be2d6bb

          SHA256

          72717c89182aa16055fca98ccb899f86084a888681cd5621dcdba99d08056c7c

          SHA512

          d539a85bdbd0bcaa52ed8483d124f61875eb1b28d5bd353087eee1332efd3bf948fcd672e77b06755ccb4af7c1783db87091d99f78da41f12f8187fd22927fb6

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n0qz4izr.tko.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\nso6AFF.tmp

          Filesize

          449KB

          MD5

          6516f29b0edc796fa4b96c182a739254

          SHA1

          f9af58d4c1eb3ae3ce10d4ca3ac86dfd76464e53

          SHA256

          1c6e4a06a3b467e41cdc806d10733d2041e69ddfcad4d54291d3d7ae88fe5399

          SHA512

          5d34c01a627262d8cb7a48f0fefcf73bd60182654a36e811991aa85a943bb6fc282fb929db1a0bd4af2d780691e434ac02334c16a9466b569d54e1c3fa62ba9b

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\InstallOptions.dll

          Filesize

          15KB

          MD5

          ece25721125d55aa26cdfe019c871476

          SHA1

          b87685ae482553823bf95e73e790de48dc0c11ba

          SHA256

          c7fef6457989d97fecc0616a69947927da9d8c493f7905dc8475c748f044f3cf

          SHA512

          4e384735d03c943f5eb3396bb3a9cb42c9d8a5479fe2871de5b8bc18db4bbd6e2c5f8fd71b6840512a7249e12a1c63e0e760417e4baa3dc30f51375588410480

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\InstallOptions.ini

          Filesize

          1KB

          MD5

          e2808f4be298a32ae279ee9ebacd0a0c

          SHA1

          b7929c346ba7a7aa690a766e4f70bc1d44f75460

          SHA256

          99b98f333848dacc5df866402181a6e2441fff0f9cdbb2a26f5f2c5d5dd12c52

          SHA512

          a305986b1eb907caa77616bcf3b9929fcbef8156b9162a942b1720ae32b34e1ba0537c553b54e750a22c3106fdb33870c346dd1f9d72db7d0baa6d318c3752a2

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\InstallOptions.ini

          Filesize

          1KB

          MD5

          1b4ead09715feef6c6ed7de21f2fedfc

          SHA1

          98ddc96951b0f4f913c273841ecc5fdd03a382eb

          SHA256

          23b790121726a05bca6cd96d5719fa26c1836d01a20f44b3a3333fcf041689d7

          SHA512

          80ee1a43b38ff83d7910586358441788fda8525f5eabbc90cfdc9e5de1c0744e8c189ce08e15cf5d4f5cb1c630d04930311a3881d2639d91a613328bcb0d9a35

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\InstallOptions2.ini

          Filesize

          2KB

          MD5

          a6634dd375de49a06ff7c8c65f03bb42

          SHA1

          2834f907bb17d0916cfd1285718695f866e319d6

          SHA256

          caf045fdf50d8706410dabb4b4db6edab64d09a1c4229854666c5fdcbc70f35d

          SHA512

          c2d65ed0b99084753447711ea46e2805017b51917851bc7b53a96e58c49b92acf9f3f32fdb9b68beea400050703785ef49f7d7bf77131cb683663375654b71e9

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\LangDLL.dll

          Filesize

          5KB

          MD5

          68b287f4067ba013e34a1339afdb1ea8

          SHA1

          45ad585b3cc8e5a6af7b68f5d8269c97992130b3

          SHA256

          18e8b40ba22c7a1687bd16e8d585380bc2773fff5002d7d67e9485fcc0c51026

          SHA512

          06c38bbb07fb55256f3cdc24e77b3c8f3214f25bfd140b521a39d167113bf307a7e8d24e445d510bc5e4e41d33c9173bb14e3f2a38bc29a0e3d08c1f0dca4bdb

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\System.dll

          Filesize

          12KB

          MD5

          cff85c549d536f651d4fb8387f1976f2

          SHA1

          d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

          SHA256

          8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

          SHA512

          531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\ioSpecial.ini

          Filesize

          582B

          MD5

          7cff5f7d6578195a4b2c1a4400c28d53

          SHA1

          a6a23e1fb70ef3dc93b89da835ebe4e83a6fefbd

          SHA256

          7db05d1f8677083df674e2a1ff29e14b5ed857a8a522b7b8ac9fe42c6746d55d

          SHA512

          59c242509f676a8a211e8b356765e1d94388dc689daf0cbee7e6bd3537da42d71d306a7134c63586c75b443a29c126b380003c21481f72ae410419911ed496d1

        • C:\Users\Admin\AppData\Local\Temp\nsu6B20.tmp\modern-wizard.bmp

          Filesize

          25KB

          MD5

          cbe40fd2b1ec96daedc65da172d90022

          SHA1

          366c216220aa4329dff6c485fd0e9b0f4f0a7944

          SHA256

          3ad2dc318056d0a2024af1804ea741146cfc18cc404649a44610cbf8b2056cf2

          SHA512

          62990cb16e37b6b4eff6ab03571c3a82dcaa21a1d393c3cb01d81f62287777fb0b4b27f8852b5fa71bc975feab5baa486d33f2c58660210e115de7e2bd34ea63

        • memory/3740-36-0x0000000000400000-0x0000000000650000-memory.dmp

          Filesize

          2.3MB

        • memory/3856-54-0x00007FFA5D680000-0x00007FFA5E141000-memory.dmp

          Filesize

          10.8MB

        • memory/3856-118-0x00000137BFA10000-0x00000137BFA22000-memory.dmp

          Filesize

          72KB

        • memory/3856-137-0x00007FFA5D680000-0x00007FFA5E141000-memory.dmp

          Filesize

          10.8MB

        • memory/3856-80-0x00000137BF8C0000-0x00000137BF910000-memory.dmp

          Filesize

          320KB

        • memory/3856-79-0x00000137BF910000-0x00000137BF986000-memory.dmp

          Filesize

          472KB

        • memory/3856-136-0x00000137BFAD0000-0x00000137BFC79000-memory.dmp

          Filesize

          1.7MB

        • memory/3856-81-0x00000137BF9B0000-0x00000137BF9CE000-memory.dmp

          Filesize

          120KB

        • memory/3856-35-0x00000137A51D0000-0x00000137A5210000-memory.dmp

          Filesize

          256KB

        • memory/3856-117-0x00000137BF9E0000-0x00000137BF9EA000-memory.dmp

          Filesize

          40KB

        • memory/4384-332-0x000000001C340000-0x000000001C4E9000-memory.dmp

          Filesize

          1.7MB

        • memory/4384-31-0x00007FFA5D683000-0x00007FFA5D685000-memory.dmp

          Filesize

          8KB

        • memory/4384-196-0x000000001C340000-0x000000001C4E9000-memory.dmp

          Filesize

          1.7MB

        • memory/4384-24-0x0000000000840000-0x0000000000880000-memory.dmp

          Filesize

          256KB

        • memory/4384-333-0x0000000002AF0000-0x0000000002AFC000-memory.dmp

          Filesize

          48KB

        • memory/4384-337-0x000000001C340000-0x000000001C4E9000-memory.dmp

          Filesize

          1.7MB

        • memory/4384-338-0x000000001C340000-0x000000001C4E9000-memory.dmp

          Filesize

          1.7MB

        • memory/4384-341-0x000000001C340000-0x000000001C4E9000-memory.dmp

          Filesize

          1.7MB

        • memory/4820-60-0x0000015994300000-0x0000015994322000-memory.dmp

          Filesize

          136KB