Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/03/2024, 04:01

General

  • Target
    $PLUGINSDIR/Gossiper.exe
  • Size 5.1MB
  • Sample240321-elpassbd94
  • SHA256 250d3b191f5a723fc9b045fbb9b89c747cade393d85705966f8cec58e6373a00
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 44 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 7 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 10 IoCs
  • Modifies Internet Explorer settings 1 TTPs 22 IoCs
  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 22 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Gossiper.exe
    "C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\Gossiper.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Users\Admin\AppData\Local\Temp\GLB6830.tmp
      C:\Users\Admin\AppData\Local\Temp\GLB6830.tmp 4736 C:\Users\Admin\AppData\Local\Temp\$PLUGI~1\Gossiper.exe
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:3208
      • C:\Users\Admin\AppData\Local\Temp\CT1547~1\STUBWR~1.EXE
        "C:\Users\Admin\AppData\Local\Temp\CT1547~1\STUBWR~1.EXE" -parameters=C:\Users\Admin\AppData\Local\Temp\CT1547340\parameters.csf
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:492
        • C:\Users\Admin\AppData\Local\Temp\conduitinstaller.exe
          C:\Users\Admin\AppData\Local\Temp\conduitinstaller.exe -StartPage=TRUE -DefaultSearch=TRUE -SearchFromAddress=TRUE -InstallId=CT1547340_Gossiper.exe -OpenUninstallPage=FALSE -Fix404=TRUE -EnableAlerts=TRUE -openwelcomedialog=FALSE -ctid=CT1547340 -ie=C:\Users\Admin\AppData\Local\Temp\CT1547340\CT1547340_ie.exe -ff=C:\Users\Admin\AppData\Local\Temp\CT1547340\CT1547340_ff.exe -ch=C:\Users\Admin\AppData\Local\Temp\CT1547340\CT1547340_ch.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3200
          • \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ie.exe
            "c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ie.exe" /s -silent -startpage=true -defaultsearch=true -showwelcomepage=false -openwelcomedialog=false -showpersonalcompdialog=false -fix404=true -searchfromaddress=true -searchfromadress=true -openuninstallpage=false -defaultsearchdisplayname= -defaultsearchurl= -enablealerts=true -installtype=ConduitNSISIntegration -installid=ct1547340_gossiper.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Installs/modifies Browser Helper Object
            • Drops file in Program Files directory
            • Modifies Internet Explorer settings
            • Modifies Internet Explorer start page
            • Modifies registry class
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1756
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 "C:\Program Files (x86)\Gossiper\tbGoss.dll" DllSendInstallationUsage New Installation
              6⤵
              • Blocklisted process makes network request
              • Loads dropped DLL
              PID:4388
            • C:\Windows\SysWOW64\rundll32.exe
              rundll32 "C:\Program Files (x86)\Gossiper\tbGoss.dll" DllVerifyEnableExtension
              6⤵
              • Loads dropped DLL
              PID:1808
          • \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ff.exe
            "c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ff.exe" /s -silent -startpage=true -defaultsearch=true -showwelcomepage=false -openwelcomedialog=false -showpersonalcompdialog=false -fix404=true -searchfromaddress=true -searchfromadress=true -openuninstallpage=false -defaultsearchdisplayname= -defaultsearchurl= -enablealerts=true -installtype=ConduitNSISIntegration -installid=ct1547340_gossiper.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetWindowsHookEx
            PID:3568
          • \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ch.exe
            "c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ch.exe" /s -silent -startpage=true -defaultsearch=true -showwelcomepage=false -openwelcomedialog=false -showpersonalcompdialog=false -fix404=true -searchfromaddress=true -searchfromadress=true -openuninstallpage=false -defaultsearchdisplayname= -defaultsearchurl= -enablealerts=true -installtype=ConduitNSISIntegration -installid=ct1547340_gossiper.exe
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:5084
            • C:\Users\Admin\AppData\Local\Temp\CCIS\ccsqlh.exe
              "C:\Users\Admin\AppData\Local\Temp\CCIS\ccsqlh.exe" CT1547340
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:640

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        Alert.dll

        • Path C:\Program Files (x86)\Conduit\Community Alerts\Alert.dll
        • Size 623KB
        • SHA256 f22e58cdfe94d4a5fbbf2795a743b167ed9923e289e14654631e0077dd306c1d
        • MD5 SHA1 SHA512 SSDEEP

        prxtbGoss.dll

        • Path C:\Program Files (x86)\Gossiper\prxtbGoss.dll
        • Size 172KB
        • SHA256 4553d99f1f146e2359ceb60987d904bafd24843b71d3e95c358776f3a1d5c6f1
        • MD5 SHA1 SHA512 SSDEEP

        tbGoss.dll

        • Path C:\Program Files (x86)\Gossiper\tbGoss.dll
        • Size 3.0MB
        • SHA256 e62b3e9ff31ae9e4ca71394a016e5f9a0ed5939976bf1f2a9ef27a4b232e40d0
        • MD5 SHA1 SHA512 SSDEEP

        tbGoss.dll

        • Path C:\Program Files (x86)\Gossiper\tbGoss.dll
        • Size 3.2MB
        • SHA256 adb84bdca4fdcbf32e375da58c4d537ab171974a802986e602f017e83db5af89
        • MD5 SHA1 SHA512 SSDEEP

        toolbar.cfg

        • Path C:\Program Files (x86)\Gossiper\toolbar.cfg
        • Size 20B
        • SHA256 66ffcf9708fa59ce6a218ff529e1e93c89542b48ee4938cb176d63c94993ce37
        • MD5 SHA1 SHA512

        ldrtbGoss.dll

        • Path C:\Users\Admin\AppData\LocalLow\Gossiper\ldrtbGoss.dll
        • Size 257KB
        • SHA256 d3f942951b10476d7f16124295bbacd6da61f63edee8d136260715cc4d929e99
        • MD5 SHA1 SHA512 SSDEEP

        tbGoss.dll

        • Path C:\Users\Admin\AppData\LocalLow\Gossiper\tbGoss.dll
        • Size 448KB
        • SHA256 ac8491286f525a9df92c757d67e47e4dd0519a63c9a9dc4284285a6adb2e078e
        • MD5 SHA1 SHA512 SSDEEP

        tbGoss.dll

        • Path C:\Users\Admin\AppData\LocalLow\Gossiper\tbGoss.dll
        • Size 1.1MB
        • SHA256 ae40ee2c86afe546f10083f8719a95271cea366267d7bc8e7aa1fcd2131fcb64
        • MD5 SHA1 SHA512 SSDEEP

        ccsqlh.exe

        • Path C:\Users\Admin\AppData\Local\Temp\CCIS\ccsqlh.exe
        • Size 624KB
        • SHA256 8b15c85fddcb700f0d9ac2da96ed18613c20bd2bda1adaac83671f6a9b163b89
        • MD5 SHA1 SHA512 SSDEEP

        sqlite3.dll

        • Path C:\Users\Admin\AppData\Local\Temp\CCIS\sqlite3.dll
        • Size 545KB
        • SHA256 70fe9a8a9e1b804c8d4029a785d415e2a201df25def8dd4a3da1f85b840aa1a1
        • MD5 SHA1 SHA512 SSDEEP

        CT1547340_ch.exe

        • Path C:\Users\Admin\AppData\Local\Temp\CT1547340\CT1547340_ch.exe
        • Size 377KB
        • SHA256 db3e68fb733653c8b07f13c260993fc5d95a0b42a9cff8e74c10bedce20779aa
        • MD5 SHA1 SHA512 SSDEEP

        STUBWR~1.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\CT1547~1\STUBWR~1.EXE
        • Size 237KB
        • SHA256 b4a1c56c5936f81ceecd8ea31cd3aa56c9c8de954a8601d970ff8be2ef736fdb
        • MD5 SHA1 SHA512 SSDEEP

        GLB6830.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\GLB6830.tmp
        • Size 70KB
        • SHA256 5630aad833e5ae2eaa4e0e4ea2f829779470e7e22dcca28a6b2e96c352d737b9
        • MD5 SHA1 SHA512 SSDEEP

        GLC6997.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\GLC6997.tmp
        • Size 161KB
        • SHA256 a87f19f9fee475d2b2e82acfb4589be6d816b613064cd06826e1d4c147beb50a
        • MD5 SHA1 SHA512 SSDEEP

        GLK69D7.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\GLK69D7.tmp
        • Size 33KB
        • SHA256 bfe7e013cfb85e78b994d3ad34eca08286494a835cb85f1d7bced3df6fe93a11
        • MD5 SHA1 SHA512 SSDEEP

        conduitinstaller.exe

        • Path C:\Users\Admin\AppData\Local\Temp\conduitinstaller.exe
        • Size 199KB
        • SHA256 b268697abaa33a5e61532a99ee208861900d40b0ade549e45de228a5bb637d64
        • MD5 SHA1 SHA512 SSDEEP

        conduitStatistics.csf

        • Path C:\Users\Admin\AppData\Local\Temp\ct1547340\conduitStatistics.csf
        • Size 857B
        • SHA256 e2979cb982d61079fba21834d00b189b09c165eb17c28b9ac001992ee75113c8
        • MD5 SHA1 SHA512

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nse7773.tmp\System.dll
        • Size 11KB
        • SHA256 72410442a894b8316da6ad469f03997ec17c0b0d117745bb6ac5cac3232c7d20
        • MD5 SHA1 SHA512 SSDEEP

        ConduitInetc.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi74D3.tmp\ConduitInetc.dll
        • Size 471KB
        • SHA256 92e693d3d8be731a66a314e5f15cfad1f4e656f3fee3d32e9e9a736b80be46c1
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi74D3.tmp\System.dll
        • Size 11KB
        • SHA256 dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
        • MD5 SHA1 SHA512 SSDEEP

        Processes.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsi8ED3.tmp\Processes.dll
        • Size 58KB
        • SHA256 59a81b8119a2e2bc2dcc22d8dbf87b20d6fe8c734930bf86d326cd2708f99358
        • MD5 SHA1 SHA512 SSDEEP

        ZipDLL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsm8B49.tmp\ZipDLL.dll
        • Size 163KB
        • SHA256 6bbeb39747f1526752980d4dbec2fe2c7347f3cc983a79c92561b92fe472e7a1
        • MD5 SHA1 SHA512 SSDEEP

        nso8FDE.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nso8FDE.tmp
        • Size 2KB
        • SHA256 28937e6feb3ea1b1de45835575dd08876e7dc20851f7063342a117b7f7198ea6
        • MD5 SHA1 SHA512

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nss73D9.tmp\nsExec.dll
        • Size 6KB
        • SHA256 168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
        • MD5 SHA1 SHA512 SSDEEP

        nss8C06.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\nss8C06.tmp
        • Size 342B
        • SHA256 7a33b60dceac942468799a98c4cd83084b67d491c48def7fcdefc9724501c6f9
        • MD5 SHA1 SHA512

        nsz77A3.tmp.tbGoss.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsz77A3.tmp.tbGoss.dll
        • Size 4.2MB
        • SHA256 9945f7e93f87e81dcbe9f401c1f13aeeaa18e95055543de188370e69cfc4391e
        • MD5 SHA1 SHA512 SSDEEP

        install.rdf

        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\gaix9yhh.Admin\extensions\{0a452a47-c5a8-4854-a237-4b9b06b376f0}\install.rdf
        • Size 1KB
        • SHA256 30944d7cce9e71c64de29892fec67dd149d561cadb5510ef520e84bbf03fb8b4
        • MD5 SHA1 SHA512

        ct1547340_ch.exe

        • Path \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ch.exe
        • Size 1.5MB
        • SHA256 61a3bc3330c57e1dced4130b7b9f88d1afa20c80b94e6dce06c6a0dc3cc32b67
        • MD5 SHA1 SHA512 SSDEEP

        ct1547340_ff.exe

        • Path \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ff.exe
        • Size 1.3MB
        • SHA256 f3b4e51419c5c336a232ff5531cb82d5a1fbd78dc3d8bb90b1f6e79eca0641f3
        • MD5 SHA1 SHA512 SSDEEP

        ct1547340_ie.exe

        • Path \??\c:\users\admin\appdata\local\temp\ct1547340\ct1547340_ie.exe
        • Size 2.0MB
        • SHA256 0d46102bbeab99df9ccbebe2b65ab7ee0e1f1ef36853056394568d8c500ec244
        • MD5 SHA1 SHA512 SSDEEP

        parameters.csf

        • Path \??\c:\users\admin\appdata\local\temp\ct1547340\parameters.csf
        • Size 411B
        • SHA256 498c877c0d25237615e6d92428c17022b585789eabd99c1c25611bdf78830025
        • MD5 SHA1 SHA512

        memory/640-551-0x0000000060900000-0x0000000060978000-memory.dmp

        memory/640-552-0x0000000000400000-0x00000000004DF000-memory.dmp

        memory/640-544-0x0000000000400000-0x00000000004DF000-memory.dmp

        memory/1756-257-0x0000000003BD0000-0x0000000004008000-memory.dmp

        memory/1756-231-0x00000000027C0000-0x00000000027EF000-memory.dmp

        memory/1756-209-0x0000000003470000-0x00000000038A8000-memory.dmp

        memory/1756-276-0x0000000003470000-0x0000000003511000-memory.dmp

        memory/1756-266-0x0000000003B60000-0x0000000003F98000-memory.dmp

        memory/1756-250-0x0000000003AA0000-0x0000000003AE3000-memory.dmp

        memory/3200-178-0x0000000002170000-0x00000000021EC000-memory.dmp

        memory/5084-524-0x00000000021C0000-0x00000000021D3000-memory.dmp

        memory/5084-495-0x00000000021C0000-0x00000000021ED000-memory.dmp