Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/02/2025, 01:05 UTC

General

  • Target

    2025-02-02_8ba4ff4266813dc16c13f8e327ce7d38_mafia.exe

  • Size

    12.4MB

  • MD5

    8ba4ff4266813dc16c13f8e327ce7d38

  • SHA1

    4f10ae5cc18a7229de3c86a128fa015b89c69db1

  • SHA256

    b773db8667f1e274bf3d8a8ed055aa965225ba25657b2a36cf14d3e3cb99c04b

  • SHA512

    8009b5bf8ba17783e4b3c0c31fc19a17bcbbab8792d3d8025c7f516fb9e03db762475f1e13864b83951bd356c5277f5d64a4758a689bdcf6af21ae411dd11023

  • SSDEEP

    24576:HEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZL:kfot

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.

  • Tofsee family
  • 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 2 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\2025-02-02_8ba4ff4266813dc16c13f8e327ce7d38_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_8ba4ff4266813dc16c13f8e327ce7d38_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bdjjojnv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4168
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ctbzjelz.exe" C:\Windows\SysWOW64\bdjjojnv\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4468
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create bdjjojnv binPath= "C:\Windows\SysWOW64\bdjjojnv\ctbzjelz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_8ba4ff4266813dc16c13f8e327ce7d38_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3640
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description bdjjojnv "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1980
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start bdjjojnv
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2828
    • 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:3132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 672
      2⤵
      • Program crash
      PID:3092
  • C:\Windows\SysWOW64\bdjjojnv\ctbzjelz.exe
    C:\Windows\SysWOW64\bdjjojnv\ctbzjelz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_8ba4ff4266813dc16c13f8e327ce7d38_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 512
      2⤵
      • Program crash
      PID:1348
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4648 -ip 4648
    1⤵
      PID:4976
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4884 -ip 4884
      1⤵
        PID:1684

      Network

      • flag-us
        DNS
        65.160.190.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        65.160.190.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        8.8.8.8.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        8.8.8.8.in-addr.arpa
        IN PTR
        Response
        8.8.8.8.in-addr.arpa
        IN PTR
        dnsgoogle
      • flag-us
        DNS
        11.153.16.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        11.153.16.2.in-addr.arpa
        IN PTR
        Response
        11.153.16.2.in-addr.arpa
        IN PTR
        a2-16-153-11deploystaticakamaitechnologiescom
      • flag-us
        DNS
        55.36.223.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        55.36.223.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        microsoft.com
        svchost.exe
        Remote address:
        8.8.8.8:53
        Request
        microsoft.com
        IN A
        Response
        microsoft.com
        IN A
        20.231.239.246
        microsoft.com
        IN A
        20.70.246.20
        microsoft.com
        IN A
        20.236.44.162
        microsoft.com
        IN A
        20.112.250.133
        microsoft.com
        IN A
        20.76.201.171
      • 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
        52.101.11.0
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.40.26
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.8.49
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.42.0
      • flag-us
        DNS
        246.239.231.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        246.239.231.20.in-addr.arpa
        IN PTR
        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
        mta5am0yahoodnsnet
        yahoo.com
        IN MX
        mta6�.
        yahoo.com
        IN MX
        mta7�.
      • flag-us
        DNS
        mta5.am0.yahoodns.net
        svchost.exe
        Remote address:
        8.8.8.8:53
        Request
        mta5.am0.yahoodns.net
        IN A
        Response
        mta5.am0.yahoodns.net
        IN A
        67.195.228.109
        mta5.am0.yahoodns.net
        IN A
        98.136.96.77
        mta5.am0.yahoodns.net
        IN A
        67.195.204.79
        mta5.am0.yahoodns.net
        IN A
        67.195.228.111
        mta5.am0.yahoodns.net
        IN A
        98.136.96.75
        mta5.am0.yahoodns.net
        IN A
        98.136.96.74
        mta5.am0.yahoodns.net
        IN A
        67.195.204.72
        mta5.am0.yahoodns.net
        IN A
        67.195.228.106
      • flag-us
        DNS
        200.163.202.172.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        200.163.202.172.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        198.187.3.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        198.187.3.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        167.190.18.2.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        167.190.18.2.in-addr.arpa
        IN PTR
        Response
        167.190.18.2.in-addr.arpa
        IN PTR
        a2-18-190-167deploystaticakamaitechnologiescom
      • 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
        74.125.206.27
        smtp.google.com
        IN A
        64.233.184.26
        smtp.google.com
        IN A
        142.251.173.27
        smtp.google.com
        IN A
        64.233.184.27
        smtp.google.com
        IN A
        142.251.173.26
      • 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
        13.227.111.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        13.227.111.52.in-addr.arpa
        IN PTR
        Response
      • 20.231.239.246:80
        microsoft.com
        svchost.exe
        190 B
        132 B
        4
        3
      • 52.101.11.0:25
        microsoft-com.mail.protection.outlook.com
        svchost.exe
        260 B
        5
      • 43.231.4.7:443
        svchost.exe
        260 B
        5
      • 67.195.228.109:25
        mta5.am0.yahoodns.net
        svchost.exe
        260 B
        5
      • 74.125.206.27:25
        smtp.google.com
        svchost.exe
        260 B
        5
      • 43.231.4.7:443
        svchost.exe
        260 B
        5
      • 217.69.139.150:25
        mxs.mail.ru
        svchost.exe
        260 B
        5
      • 43.231.4.7:443
        svchost.exe
        260 B
        5
      • 8.8.8.8:53
        8.8.8.8.in-addr.arpa
        dns
        66 B
        90 B
        1
        1

        DNS Request

        8.8.8.8.in-addr.arpa

      • 8.8.8.8:53
        65.160.190.20.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        65.160.190.20.in-addr.arpa

      • 8.8.8.8:53
        11.153.16.2.in-addr.arpa
        dns
        70 B
        133 B
        1
        1

        DNS Request

        11.153.16.2.in-addr.arpa

      • 8.8.8.8:53
        55.36.223.20.in-addr.arpa
        dns
        71 B
        157 B
        1
        1

        DNS Request

        55.36.223.20.in-addr.arpa

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

        DNS Request

        microsoft.com

        DNS Response

        20.231.239.246
        20.70.246.20
        20.236.44.162
        20.112.250.133
        20.76.201.171

      • 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

        52.101.11.0
        52.101.40.26
        52.101.8.49
        52.101.42.0

      • 8.8.8.8:53
        246.239.231.20.in-addr.arpa
        dns
        73 B
        159 B
        1
        1

        DNS Request

        246.239.231.20.in-addr.arpa

      • 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
        mta5.am0.yahoodns.net
        dns
        svchost.exe
        67 B
        195 B
        1
        1

        DNS Request

        mta5.am0.yahoodns.net

        DNS Response

        67.195.228.109
        98.136.96.77
        67.195.204.79
        67.195.228.111
        98.136.96.75
        98.136.96.74
        67.195.204.72
        67.195.228.106

      • 8.8.8.8:53
        200.163.202.172.in-addr.arpa
        dns
        74 B
        160 B
        1
        1

        DNS Request

        200.163.202.172.in-addr.arpa

      • 8.8.8.8:53
        198.187.3.20.in-addr.arpa
        dns
        71 B
        157 B
        1
        1

        DNS Request

        198.187.3.20.in-addr.arpa

      • 8.8.8.8:53
        167.190.18.2.in-addr.arpa
        dns
        71 B
        135 B
        1
        1

        DNS Request

        167.190.18.2.in-addr.arpa

      • 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
        141 B
        1
        1

        DNS Request

        smtp.google.com

        DNS Response

        74.125.206.27
        64.233.184.26
        142.251.173.27
        64.233.184.27
        142.251.173.26

      • 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
        13.227.111.52.in-addr.arpa
        dns
        72 B
        158 B
        1
        1

        DNS Request

        13.227.111.52.in-addr.arpa

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        12.1MB

        MD5

        ee633a0c102272cf2712a77b274adf5f

        SHA1

        f888f3b96eee79682b47f37dea885be6af6b5c84

        SHA256

        686c2ac34b03353b8f922e57b0e8e02748227823c3ba2fcafe6fc0f89b695e84

        SHA512

        915f402f2e4c34b500b642e7adb6a3102846fc48dfd8d1080eaf068dfafd80db0e7887bde623d67fc20e516d28d4d0ed537784d70dfbf905fa9d2e943b06fd6b

      • memory/4316-14-0x0000000000E80000-0x0000000000E95000-memory.dmp

        Filesize

        84KB

      • memory/4316-17-0x0000000000E80000-0x0000000000E95000-memory.dmp

        Filesize

        84KB

      • memory/4316-16-0x0000000000E80000-0x0000000000E95000-memory.dmp

        Filesize

        84KB

      • memory/4648-8-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB

      • memory/4648-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4648-1-0x0000000000750000-0x0000000000850000-memory.dmp

        Filesize

        1024KB

      • memory/4648-7-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4648-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4648-2-0x0000000000560000-0x0000000000573000-memory.dmp

        Filesize

        76KB

      • memory/4884-11-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4884-13-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4884-12-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

      • memory/4884-19-0x0000000000400000-0x000000000044E000-memory.dmp

        Filesize

        312KB

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