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Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2024, 17:22 UTC

General

  • Target

    JaffaCakes118_74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641.exe

  • Size

    290KB

  • MD5

    9946c671ddc90253608354599a3dcf42

  • SHA1

    675c3b3e4682298fdd3120b836a68b84ee74730e

  • SHA256

    74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641

  • SHA512

    efcad1ff557ed3b8cf91c8e09580dfeb752f7011edc7404c95076a17285c852b154516015049d73c000a01cf2a128ae73e486a730e5b5d089364d8944b67d2c4

  • SSDEEP

    6144:QZDhTWrhgUaxjFftGu35QZ+2PPFGrGuislc03r:QZDhTWrhgUWFfMuP0FGqb/0

Malware Config

Extracted

Family

tofsee

C2

defeatwax.ru

refabyd.info

Signatures

  • Tofsee

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

  • Tofsee family
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • 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.

  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ummdelpj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:592
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\adbwqxhr.exe" C:\Windows\SysWOW64\ummdelpj\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2852
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ummdelpj binPath= "C:\Windows\SysWOW64\ummdelpj\adbwqxhr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3032
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ummdelpj "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2740
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ummdelpj
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2804
    • 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:2860
  • C:\Windows\SysWOW64\ummdelpj\adbwqxhr.exe
    C:\Windows\SysWOW64\ummdelpj\adbwqxhr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_74125bebe72f5fb29914fbdd87b8e8083cbb1a285310f0ec1a942c74adc4b641.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2796

Network

  • flag-us
    DNS
    microsoft.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft.com
    IN A
    Response
    microsoft.com
    IN A
    20.76.201.171
    microsoft.com
    IN A
    20.231.239.246
    microsoft.com
    IN A
    20.70.246.20
    microsoft.com
    IN A
    20.112.250.133
    microsoft.com
    IN A
    20.236.44.162
  • flag-us
    DNS
    microsoft.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft.com
    IN MX
    Response
    microsoft.com
    IN MX
    microsoft-commail protectionoutlook�
  • flag-us
    DNS
    microsoft-com.mail.protection.outlook.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    microsoft-com.mail.protection.outlook.com
    IN A
    Response
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.10.6
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.8.46
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.194.0
    microsoft-com.mail.protection.outlook.com
    IN A
    52.101.11.19
  • flag-us
    DNS
    defeatwax.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    defeatwax.ru
    IN A
    Response
  • flag-us
    DNS
    yahoo.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    yahoo.com
    IN MX
    Response
    yahoo.com
    IN MX
    mta7am0yahoodnsnet
    yahoo.com
    IN MX
    mta6�.
    yahoo.com
    IN MX
    mta5�.
  • flag-us
    DNS
    mta7.am0.yahoodns.net
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mta7.am0.yahoodns.net
    IN A
    Response
    mta7.am0.yahoodns.net
    IN A
    67.195.204.79
    mta7.am0.yahoodns.net
    IN A
    67.195.228.109
    mta7.am0.yahoodns.net
    IN A
    67.195.228.111
    mta7.am0.yahoodns.net
    IN A
    67.195.204.74
    mta7.am0.yahoodns.net
    IN A
    98.136.96.75
    mta7.am0.yahoodns.net
    IN A
    67.195.228.110
    mta7.am0.yahoodns.net
    IN A
    98.136.96.91
    mta7.am0.yahoodns.net
    IN A
    67.195.204.77
  • flag-us
    DNS
    google.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    google.com
    IN MX
    Response
    google.com
    IN MX
    smtp�
  • flag-us
    DNS
    smtp.google.com
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    smtp.google.com
    IN A
    Response
    smtp.google.com
    IN A
    142.250.102.27
    smtp.google.com
    IN A
    142.250.27.27
    smtp.google.com
    IN A
    142.250.102.26
    smtp.google.com
    IN A
    142.250.27.26
  • flag-us
    DNS
    mail.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mail.ru
    IN MX
    Response
    mail.ru
    IN MX
    mxs�
  • flag-us
    DNS
    mxs.mail.ru
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    mxs.mail.ru
    IN A
    Response
    mxs.mail.ru
    IN A
    217.69.139.150
    mxs.mail.ru
    IN A
    94.100.180.31
  • flag-us
    DNS
    refabyd.info
    svchost.exe
    Remote address:
    8.8.8.8:53
    Request
    refabyd.info
    IN A
    Response
  • 20.76.201.171:80
    microsoft.com
    svchost.exe
    190 B
    132 B
    4
    3
  • 52.101.10.6:25
    microsoft-com.mail.protection.outlook.com
    svchost.exe
    152 B
    3
  • 67.195.204.79:25
    mta7.am0.yahoodns.net
    svchost.exe
    152 B
    3
  • 142.250.102.27:25
    smtp.google.com
    svchost.exe
    152 B
    3
  • 217.69.139.150:25
    mxs.mail.ru
    svchost.exe
    152 B
    3
  • 8.8.8.8:53
    microsoft.com
    dns
    svchost.exe
    59 B
    139 B
    1
    1

    DNS Request

    microsoft.com

    DNS Response

    20.76.201.171
    20.231.239.246
    20.70.246.20
    20.112.250.133
    20.236.44.162

  • 8.8.8.8:53
    microsoft.com
    dns
    svchost.exe
    59 B
    113 B
    1
    1

    DNS Request

    microsoft.com

  • 8.8.8.8:53
    microsoft-com.mail.protection.outlook.com
    dns
    svchost.exe
    87 B
    151 B
    1
    1

    DNS Request

    microsoft-com.mail.protection.outlook.com

    DNS Response

    52.101.10.6
    52.101.8.46
    52.101.194.0
    52.101.11.19

  • 8.8.8.8:53
    defeatwax.ru
    dns
    svchost.exe
    58 B
    119 B
    1
    1

    DNS Request

    defeatwax.ru

  • 8.8.8.8:53
    yahoo.com
    dns
    svchost.exe
    55 B
    134 B
    1
    1

    DNS Request

    yahoo.com

  • 8.8.8.8:53
    mta7.am0.yahoodns.net
    dns
    svchost.exe
    67 B
    195 B
    1
    1

    DNS Request

    mta7.am0.yahoodns.net

    DNS Response

    67.195.204.79
    67.195.228.109
    67.195.228.111
    67.195.204.74
    98.136.96.75
    67.195.228.110
    98.136.96.91
    67.195.204.77

  • 8.8.8.8:53
    google.com
    dns
    svchost.exe
    56 B
    77 B
    1
    1

    DNS Request

    google.com

  • 8.8.8.8:53
    smtp.google.com
    dns
    svchost.exe
    61 B
    125 B
    1
    1

    DNS Request

    smtp.google.com

    DNS Response

    142.250.102.27
    142.250.27.27
    142.250.102.26
    142.250.27.26

  • 8.8.8.8:53
    mail.ru
    dns
    svchost.exe
    53 B
    73 B
    1
    1

    DNS Request

    mail.ru

  • 8.8.8.8:53
    mxs.mail.ru
    dns
    svchost.exe
    57 B
    89 B
    1
    1

    DNS Request

    mxs.mail.ru

    DNS Response

    217.69.139.150
    94.100.180.31

  • 8.8.8.8:53
    refabyd.info
    dns
    svchost.exe
    58 B
    137 B
    1
    1

    DNS Request

    refabyd.info

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.8MB

    MD5

    9f37779cf42a89d8ff35a42eca1bbd64

    SHA1

    c322fe6b75e883a06c4bda56c9263c0007abf791

    SHA256

    1783fe7b1ba02a1f6ddb4c8176ea4e512c9ab9e7b21c9c6262728f1c5b593e5c

    SHA512

    747709759e4e3d6fab515d2733926944601ab8a8462b1efcffca65f58485b9d5747a1e0a18159c6b63f01e60d623830e5e1a340c93de725b1cb8d21111aca6ae

  • memory/2692-17-0x0000000000400000-0x0000000000878000-memory.dmp

    Filesize

    4.5MB

  • memory/2796-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2796-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2796-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2796-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2796-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2964-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2964-8-0x0000000000400000-0x0000000000878000-memory.dmp

    Filesize

    4.5MB

  • memory/2964-9-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2964-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2964-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2964-1-0x0000000000230000-0x0000000000330000-memory.dmp

    Filesize

    1024KB

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