Overview

overview

8

Static

static

3

Bonzify.exe

windows7-x64

8

Resubmissions

14/02/2024, 16:11

240214-tm2d3sfb5v8

13/02/2024, 13:20

240213-qlc4baca758

Analysis

  • max time kernel
    45s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2024, 16:11

Sharing

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General

  • Target
    Bonzify.exe
  • Size 6.4MB
  • Sample240214-tm2d3sfb5v
  • SHA256 d7e6580054525d3f21f86edfc9f30b7a75ffa829a1eb67ee3cab33f0040dba4e
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10
discoveryexploitpersistence

Malware Config

Signatures

  • Modifies AppInit DLL entries 2 TTPs
    persistence
  • Modifies Installed Components in the registry 2 TTPs 3 IoCs
    persistence
  • Possible privilege escalation attempt 2 IoCs
    exploit
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 29 IoCs
  • Modifies file permissions 1 TTPs 2 IoCs
    discovery
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 60 IoCs
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of FindShellTrayWindow 32 IoCs
  • Suspicious use of SendNotifyMessage 40 IoCs
  • Suspicious use of WriteProcessMemory 64 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bonzify.exe
    "C:\Users\Admin\AppData\Local\Temp\Bonzify.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c "C:\Users\Admin\AppData\Local\Temp\KillAgent.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im AgentSvr.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1644
      • C:\Windows\SysWOW64\takeown.exe
        takeown /r /d y /f C:\Windows\MsAgent
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2256
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\MsAgent /c /t /grant "everyone":(f)
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2560
    • C:\Users\Admin\AppData\Local\Temp\INSTALLER.exe
      INSTALLER.exe /q
      2⤵
      • Modifies Installed Components in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2576
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentCtl.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1628
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentDPv.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1492
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\mslwvtts.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:2252
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentDP2.dll"
        3⤵
        • Loads dropped DLL
        PID:1620
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentMPx.dll"
        3⤵
        • Loads dropped DLL
        PID:1716
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentSR.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:480
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentPsh.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1128
      • C:\Windows\msagent\AgentSvr.exe
        "C:\Windows\msagent\AgentSvr.exe" /regserver
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies registry class
        PID:1460
      • C:\Windows\SysWOW64\grpconv.exe
        grpconv.exe -o
        3⤵
          PID:1876
      • C:\Users\Admin\AppData\Local\Temp\INSTALLER.exe
        INSTALLER.exe /q
        2⤵
        • Modifies Installed Components in the registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:1548
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s C:\Windows\lhsp\tv\tv_enua.dll
          3⤵
          • Loads dropped DLL
          • Modifies registry class
          PID:2696
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s C:\Windows\lhsp\tv\tvenuax.dll
          3⤵
          • Loads dropped DLL
          PID:1856
        • C:\Windows\SysWOW64\grpconv.exe
          grpconv.exe -o
          3⤵
            PID:2700
      • C:\Windows\msagent\AgentSvr.exe
        C:\Windows\msagent\AgentSvr.exe -Embedding
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2720
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Drops file in Windows directory
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1648

      Network

            MITRE ATT&CK Enterprise v15

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            Downloads

            INSTALLER.exe
            • Path C:\Users\Admin\AppData\Local\Temp\INSTALLER.exe
            • Size 435KB
            • SHA256 8ba550d9f21d6b0739309b200c843be471fdb0a962beff11d68f2b1b65d6602e
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTANM.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTANM.DLL
            • Size 40KB
            • SHA256 905cb1a15eccaa9b79926ee7cfe3629a6f1c6b24bdd6cea9ccb9ebc9eaa92ff7
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTCTL.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTCTL.DLL
            • Size 160KB
            • SHA256 d19b6b7c57bcee7239526339e683f62d9c2f9690947d0a446001377f0b56103a
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTDP2.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTDP2.DLL
            • Size 60KB
            • SHA256 c33beaba130f8b740dddb9980fe9012f9322ac6e94f36a6aa6086851c51b98de
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTDPV.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTDPV.DLL
            • Size 64KB
            • SHA256 394a17150b8774e507b8f368c2c248c10fce50fc43184b744e771f0e79ecafed
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTMPX.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTMPX.DLL
            • Size 60KB
            • SHA256 6550582e41fc53b8a7ccdf9ac603216937c6ff2a28e9538610adb7e67d782ab5
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTPSH.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTPSH.DLL
            • Size 36KB
            • SHA256 8414dfe399813b7426c235ba1e625bd2b5635c8140da0d0cfc947f6565fe415f
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTSR.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTSR.DLL
            • Size 60KB
            • SHA256 e78e74c24d468284639faf9dcfdba855f3e4f00b2f26db6b2c491fa51da8916d
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGENTSVR.EXE
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGENTSVR.EXE
            • Size 268KB
            • SHA256 e8ce546196b6878a8c34da863a6c8a7e34af18fb9b509d4d36763734efa2d175
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGT0409.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGT0409.DLL
            • Size 28KB
            • SHA256 6b0b57e5b27d901f4f106b236c58d0b2551b384531a8f3dad6c06ed4261424b1
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGT0409.HLP
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGT0409.HLP
            • Size 8KB
            • SHA256 e4ccf06706e68621bb69add3dd88fed82d30ad8778a55907d33f6d093ac16801
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGT20.INF
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGT20.INF
            • Size 2KB
            • SHA256 49e6b848f5a708d161f795157333d7e1c7103455a2f47f50895683ef6a1abe4d
            • MD5 SHA1 SHA512
            Submit Download

            AGTCTL15.TLB
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGTCTL15.TLB
            • Size 28KB
            • SHA256 3f8adc1e332dd5c252bbcf92bf6079b38a74d360d94979169206db34e6a24cd2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            AGTINST.INF
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\AGTINST.INF
            • Size 7KB
            • SHA256 bd1295d19d010d4866c9d6d87877913eee69e279d4d089e5756ba285f3424e00
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            MSLWVTTS.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\MSLWVTTS.DLL
            • Size 52KB
            • SHA256 ea4ca740cd60d2c88280ff8115bf354876478ef27e9e676d8b66601b4e900ba0
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Msvcirt.dll
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Msvcirt.dll
            • Size 76KB
            • SHA256 647f7534aaaedffa93534e4cb9b24bfcf91524828ff0364d88973be58139e255
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Msvcp50.dll
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Msvcp50.dll
            • Size 552KB
            • SHA256 91cd76f9fa3b25008decb12c005c194bdf66c8d6526a954de7051bec9aae462a
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            W95INF16.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\W95INF16.DLL
            • Size 2KB
            • SHA256 337d2fb5252fc532b7bf67476b5979d158ca2ac589e49c6810e2e1afebe296af
            • MD5 SHA1 SHA512
            Submit Download

            W95INF32.DLL
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\W95INF32.DLL
            • Size 4KB
            • SHA256 e5e9f7c8dbd47134815e155ed1c7b261805eda6fddea6fa4ea78e0e4fb4f7fb5
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            andmoipa.ttf
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\andmoipa.ttf
            • Size 29KB
            • SHA256 38ae07eeb7909bda291d302848b8fe5f11849cf0d597f0e5b300bfed465aed4e
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            tv_enua.dll
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tv_enua.dll
            • Size 593KB
            • SHA256 cd2f58ce8154d87886bde53ecf98a6c55e0520ecf5722061853eb4859dceb8de
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            tv_enua.hlp
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tv_enua.hlp
            • Size 11KB
            • SHA256 382d745e10944b507a8d9c69ae2e4affd4acf045729a19ac143fa8d9613ccb42
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            tv_enua.inf
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tv_enua.inf
            • Size 2KB
            • SHA256 85189df1c141ef5d86c93b1142e65bf03db126d12d24e18b93dd4cc9f3e438ae
            • MD5 SHA1 SHA512
            Submit Download

            tvenuax.dll
            • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\tvenuax.dll
            • Size 40KB
            • SHA256 c9106198ecbd3a9cab8c2feff07f16d6bb1adfa19550148fc96076f0f28a37b0
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            KillAgent.bat
            • Path C:\Users\Admin\AppData\Local\Temp\KillAgent.bat
            • Size 161B
            • SHA256 e4edc2cb6317ab19ee1a6327993e9332af35cfbebaff2ac7c3f71d43cfcbe793
            • MD5 SHA1 SHA512
            Submit Download

            tv_enua.dll
            • Path C:\Windows\lhsp\tv\tv_enua.dll
            • Size 1.2MB
            • SHA256 e0beb19c3536561f603474e3d5e3c3dff341745d317bc4d1463e2abf182bb18d
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            Bonzi.acs
            • Path C:\Windows\msagent\chars\Bonzi.acs
            • Size 5.0MB
            • SHA256 f3d4425238b5f68b4d41ed5be271d2f4118a245baf808a62dc1a9e6e619b2f95
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            INSTALLER.exe
            • Path \Users\Admin\AppData\Local\Temp\INSTALLER.exe
            • Size 391KB
            • SHA256 16ca09ad70561f413376ad72550ae5664c89c6a76c85c872ffe2cb1e7f49e2aa
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            INSTALLER.exe
            • Path \Users\Admin\AppData\Local\Temp\INSTALLER.exe
            • Size 997KB
            • SHA256 709936902951fb684d0a03a561fb7fd41c5e6f81ecd60d326809db66eb659331
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            ADVPACK.DLL
            • Path \Users\Admin\AppData\Local\Temp\IXP000.TMP\ADVPACK.DLL
            • Size 73KB
            • SHA256 7d126ed85df9705ec4f38bd52a73b621cf64dd87a3e8f9429a569f3f82f74004
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            memory/1648-384-0x0000000004490000-0x0000000004491000-memory.dmp
            Download