Overview

overview

8

Static

static

3

@Wanna.Bud...in.zip

windows7-x64

1

@Wanna.Bud...in.zip

windows10-1703-x64

1

@Wanna.Bud...in.zip

windows10-2004-x64

1

@Wanna.Bud...in.zip

windows11-21h2-x64

1

Bonzify.exe

windows7-x64

8

Bonzify.exe

windows10-1703-x64

8

Bonzify.exe

windows10-2004-x64

8

Bonzify.exe

windows11-21h2-x64

8

LOVE-LETTE...XT.vbs

windows7-x64

1

LOVE-LETTE...XT.vbs

windows10-1703-x64

1

LOVE-LETTE...XT.vbs

windows10-2004-x64

1

LOVE-LETTE...XT.vbs

windows11-21h2-x64

1

MEMZ.exe

windows7-x64

6

MEMZ.exe

windows10-1703-x64

7

MEMZ.exe

windows10-2004-x64

7

MEMZ.exe

windows11-21h2-x64

6

salinewin.exe

windows7-x64

8

salinewin.exe

windows10-1703-x64

8

salinewin.exe

windows10-2004-x64

8

salinewin.exe

windows11-21h2-x64

8

Analysis

  • max time kernel
    78s
  • max time network
    87s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/03/2024, 17:15

Sharing

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General

  • Target
    Bonzify.exe
  • Size 6.4MB
  • Sample240309-vszm4sda87
  • SHA256 66f62408dfce7c4a5718d2759f1d35721ca22077398850277d16e1fca87fe764
  • 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 16 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 56 IoCs
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 54 IoCs

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:1216
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\KillAgent.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im AgentSvr.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2384
      • C:\Windows\SysWOW64\takeown.exe
        takeown /r /d y /f C:\Windows\MsAgent
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:60
      • C:\Windows\SysWOW64\icacls.exe
        icacls C:\Windows\MsAgent /c /t /grant "everyone":(f)
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:4264
    • 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 WriteProcessMemory
      PID:2836
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentCtl.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:3424
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentDPv.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:4612
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\mslwvtts.dll"
        3⤵
        • Loads dropped DLL
        PID:3820
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentDP2.dll"
        3⤵
        • Loads dropped DLL
        PID:4280
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentMPx.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:1440
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentSR.dll"
        3⤵
        • Loads dropped DLL
        PID:1448
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Windows\msagent\AgentPsh.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:388
      • C:\Windows\msagent\AgentSvr.exe
        "C:\Windows\msagent\AgentSvr.exe" /regserver
        3⤵
        • Executes dropped EXE
        • Modifies registry class
        PID:2060
      • C:\Windows\SysWOW64\grpconv.exe
        grpconv.exe -o
        3⤵
          PID:5004
      • 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 WriteProcessMemory
        PID:2344
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s C:\Windows\lhsp\tv\tv_enua.dll
          3⤵
          • Loads dropped DLL
          PID:1824
        • C:\Windows\SysWOW64\regsvr32.exe
          regsvr32 /s C:\Windows\lhsp\tv\tvenuax.dll
          3⤵
          • Loads dropped DLL
          PID:4568
        • C:\Windows\SysWOW64\grpconv.exe
          grpconv.exe -o
          3⤵
            PID:2420
      • 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:872
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x414
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2020
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Modifies Installed Components in the registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1952
      • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
        1⤵
          PID:1340

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

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

              INSTALLER.exe
              • Path C:\Users\Admin\AppData\Local\Temp\INSTALLER.exe
              • Size 997KB
              • SHA256 709936902951fb684d0a03a561fb7fd41c5e6f81ecd60d326809db66eb659331
              • 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 1.2MB
              • SHA256 e0beb19c3536561f603474e3d5e3c3dff341745d317bc4d1463e2abf182bb18d
              • 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 57KB
              • SHA256 4f80d94f2f55f6bb03cc410a857c3ae51591bcc14e0c619fd2e48aa4ff7b10dc
              • 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

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

              memory/1340-391-0x00000173FB940000-0x00000173FB960000-memory.dmp
              Download

              memory/1340-395-0x00000173FBAD0000-0x00000173FBAF0000-memory.dmp
              Download

              memory/1952-384-0x0000000002A10000-0x0000000002A11000-memory.dmp
              Download