Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 02:14

General

  • Target

    0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe

  • Size

    10.0MB

  • MD5

    0866bfed4e41dc6490faa8c4d149d42e

  • SHA1

    9f3409b0408c9573beeadd30c4ed7d5c95e7d1d2

  • SHA256

    eca59671c5b27920d3194bf8367a55c451a8aa6f78eb0b6dc5400fd0bec9e531

  • SHA512

    2b3cd6e677751de715c603624e51fa2eec754ec1c75baf5ff303f6e0c64b5d01f5c1290fcae8ec97fb917d52ab7ad5c5a03b07313994b192cd74552e465f1ec6

  • SSDEEP

    49152:CMeuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuH:C

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

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

  • Program crash 21 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 588
      2⤵
      • Program crash
      PID:2876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 736
      2⤵
      • Program crash
      PID:4916
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 796
      2⤵
      • Program crash
      PID:1384
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 832
      2⤵
      • Program crash
      PID:1976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 980
      2⤵
      • Program crash
      PID:5008
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1000
      2⤵
      • Program crash
      PID:3756
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1020
      2⤵
      • Program crash
      PID:4956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\acshugbt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1992
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 924
      2⤵
      • Program crash
      PID:2932
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 580
      2⤵
      • Program crash
      PID:3996
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ltimzxgg.exe" C:\Windows\SysWOW64\acshugbt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5032
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 800
      2⤵
      • Program crash
      PID:5072
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 680
      2⤵
      • Program crash
      PID:4988
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create acshugbt binPath= "C:\Windows\SysWOW64\acshugbt\ltimzxgg.exe /d\"C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 924
      2⤵
      • Program crash
      PID:2900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 800
      2⤵
      • Program crash
      PID:1068
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description acshugbt "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3680
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1184
      2⤵
      • Program crash
      PID:3960
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 924
      2⤵
      • Program crash
      PID:4348
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start acshugbt
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4360
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 572
      2⤵
      • Program crash
      PID:1848
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 1148
      2⤵
      • Program crash
      PID:4312
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:4860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3084 -s 580
      2⤵
      • Program crash
      PID:5084
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3084 -ip 3084
    1⤵
      PID:5076
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3084 -ip 3084
      1⤵
        PID:4476
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3084 -ip 3084
        1⤵
          PID:4816
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3084 -ip 3084
          1⤵
            PID:2744
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3084 -ip 3084
            1⤵
              PID:4032
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 3084 -ip 3084
              1⤵
                PID:4316
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3084 -ip 3084
                1⤵
                  PID:1808
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3084 -ip 3084
                  1⤵
                    PID:3344
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3084 -ip 3084
                    1⤵
                      PID:2444
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3084 -ip 3084
                      1⤵
                        PID:1324
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3084 -ip 3084
                        1⤵
                          PID:764
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 3084 -ip 3084
                          1⤵
                            PID:2196
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3084 -ip 3084
                            1⤵
                              PID:3520
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3084 -ip 3084
                              1⤵
                                PID:5108
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3084 -ip 3084
                                1⤵
                                  PID:1884
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3084 -ip 3084
                                  1⤵
                                    PID:1596
                                  • C:\Windows\SysWOW64\acshugbt\ltimzxgg.exe
                                    C:\Windows\SysWOW64\acshugbt\ltimzxgg.exe /d"C:\Users\Admin\AppData\Local\Temp\0866bfed4e41dc6490faa8c4d149d42e_JaffaCakes118.exe"
                                    1⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetThreadContext
                                    • System Location Discovery: System Language Discovery
                                    • Suspicious use of WriteProcessMemory
                                    PID:3160
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 520
                                      2⤵
                                      • Program crash
                                      PID:2156
                                    • C:\Windows\SysWOW64\svchost.exe
                                      svchost.exe
                                      2⤵
                                      • Sets service image path in registry
                                      • Deletes itself
                                      • System Location Discovery: System Language Discovery
                                      PID:3396
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 528
                                      2⤵
                                      • Program crash
                                      PID:1168
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -u -p 3160 -s 544
                                      2⤵
                                      • Program crash
                                      PID:4892
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3084 -ip 3084
                                    1⤵
                                      PID:3840
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3084 -ip 3084
                                      1⤵
                                        PID:4124
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3160 -ip 3160
                                        1⤵
                                          PID:960
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3160 -ip 3160
                                          1⤵
                                            PID:4548
                                          • C:\Windows\SysWOW64\WerFault.exe
                                            C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 3160 -ip 3160
                                            1⤵
                                              PID:2880

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

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

                                              Filesize

                                              12.8MB

                                              MD5

                                              e6e358db7794f3e9ecc41b91146a1d36

                                              SHA1

                                              8571bfde65cce451964e2a7d63b83f1ded7e5c8d

                                              SHA256

                                              98b2693dbc2d9f0f3067c797eec6c6ff8a68e6d9e7adad2d41b44a37a9bc0aec

                                              SHA512

                                              ef08a667284644ea5b0a7f284336af6183889045a0ab8813ed6abf4545dac08a6aedfdb1f5018b4513f06cc758697119448cd841cc5e2964a7f7e7fe1a343c33

                                            • memory/3084-1-0x0000000000770000-0x0000000000870000-memory.dmp

                                              Filesize

                                              1024KB

                                            • memory/3084-2-0x00000000005C0000-0x00000000005D3000-memory.dmp

                                              Filesize

                                              76KB

                                            • memory/3084-3-0x0000000000400000-0x0000000000415000-memory.dmp

                                              Filesize

                                              84KB

                                            • memory/3084-7-0x0000000000400000-0x0000000000469000-memory.dmp

                                              Filesize

                                              420KB

                                            • memory/3084-8-0x00000000005C0000-0x00000000005D3000-memory.dmp

                                              Filesize

                                              76KB

                                            • memory/3084-9-0x0000000000400000-0x0000000000415000-memory.dmp

                                              Filesize

                                              84KB

                                            • memory/3160-11-0x0000000000400000-0x0000000000469000-memory.dmp

                                              Filesize

                                              420KB

                                            • memory/3160-17-0x0000000000400000-0x0000000000469000-memory.dmp

                                              Filesize

                                              420KB

                                            • memory/3396-12-0x0000000000A30000-0x0000000000A45000-memory.dmp

                                              Filesize

                                              84KB

                                            • memory/3396-14-0x0000000000A30000-0x0000000000A45000-memory.dmp

                                              Filesize

                                              84KB

                                            • memory/3396-15-0x0000000000A30000-0x0000000000A45000-memory.dmp

                                              Filesize

                                              84KB