Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2025, 19:07 UTC

General

  • Target

    2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe

  • Size

    11.7MB

  • MD5

    fe2a6350634d4ec53d6940cabcdb6c70

  • SHA1

    c5ca60481439fdcf3c189173861246fc3df51c2e

  • SHA256

    95a6da773a66bee3c82e02f1823fbf567bda773845b7f8a22fec24574c36d08f

  • SHA512

    7e5415bb6a9025394bd35fdab07cfd0eb7e88815263c1c7b4fe0cea621235444d0c3dc19090d00a8da8fdf1642e84a392b6d1e73efcb4006ced82d6dc361a171

  • SSDEEP

    24576:06WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ/:ZWdLQk

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\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2960
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yjzrdzts\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2052
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fsebuhmw.exe" C:\Windows\SysWOW64\yjzrdzts\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2168
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create yjzrdzts binPath= "C:\Windows\SysWOW64\yjzrdzts\fsebuhmw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3644
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description yjzrdzts "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4172
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start yjzrdzts
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2360
    • 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:684
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 1044
      2⤵
      • Program crash
      PID:884
  • C:\Windows\SysWOW64\yjzrdzts\fsebuhmw.exe
    C:\Windows\SysWOW64\yjzrdzts\fsebuhmw.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-25_fe2a6350634d4ec53d6940cabcdb6c70_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:1860
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 896 -s 512
      2⤵
      • Program crash
      PID:1452
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2960 -ip 2960
    1⤵
      PID:2132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 896 -ip 896
      1⤵
        PID:2704

      Network

      • 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
        97.17.167.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        97.17.167.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        172.214.232.199.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        172.214.232.199.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        5.114.82.104.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        5.114.82.104.in-addr.arpa
        IN PTR
        Response
        5.114.82.104.in-addr.arpa
        IN PTR
        a104-82-114-5deploystaticakamaitechnologiescom
      • flag-us
        DNS
        133.32.126.40.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        133.32.126.40.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
        20.70.246.20
        microsoft.com
        IN A
        20.112.250.133
        microsoft.com
        IN A
        20.76.201.171
        microsoft.com
        IN A
        20.231.239.246
        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
        52.101.8.49
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.11.0
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.42.0
        microsoft-com.mail.protection.outlook.com
        IN A
        52.101.40.26
      • flag-us
        DNS
        20.246.70.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        20.246.70.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        133.211.185.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        133.211.185.52.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
        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
        67.195.228.106
        mta7.am0.yahoodns.net
        IN A
        98.136.96.91
        mta7.am0.yahoodns.net
        IN A
        98.136.96.77
        mta7.am0.yahoodns.net
        IN A
        67.195.204.74
        mta7.am0.yahoodns.net
        IN A
        67.195.228.111
        mta7.am0.yahoodns.net
        IN A
        67.195.228.110
        mta7.am0.yahoodns.net
        IN A
        67.195.228.109
        mta7.am0.yahoodns.net
        IN A
        67.195.204.77
      • flag-us
        DNS
        50.23.12.20.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        50.23.12.20.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        206.23.85.13.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        206.23.85.13.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        21.49.80.91.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        21.49.80.91.in-addr.arpa
        IN PTR
        Response
      • 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
        142.251.168.27
        smtp.google.com
        IN A
        142.250.110.26
        smtp.google.com
        IN A
        142.251.5.26
        smtp.google.com
        IN A
        142.251.5.27
        smtp.google.com
        IN A
        142.250.110.27
      • flag-us
        DNS
        172.210.232.199.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        172.210.232.199.in-addr.arpa
        IN PTR
        Response
      • 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
        94.100.180.31
        mxs.mail.ru
        IN A
        217.69.139.150
      • flag-us
        DNS
        19.229.111.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        19.229.111.52.in-addr.arpa
        IN PTR
        Response
      • flag-us
        DNS
        19.229.111.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        19.229.111.52.in-addr.arpa
        IN PTR
      • flag-us
        DNS
        19.229.111.52.in-addr.arpa
        Remote address:
        8.8.8.8:53
        Request
        19.229.111.52.in-addr.arpa
        IN PTR
      • 20.70.246.20:80
        microsoft.com
        svchost.exe
        190 B
        132 B
        4
        3
      • 52.101.8.49:25
        microsoft-com.mail.protection.outlook.com
        svchost.exe
        260 B
        5
      • 43.231.4.7:443
        svchost.exe
        260 B
        5
      • 67.195.228.106:25
        mta7.am0.yahoodns.net
        svchost.exe
        260 B
        5
      • 142.251.168.27:25
        smtp.google.com
        svchost.exe
        260 B
        5
      • 43.231.4.7:443
        svchost.exe
        260 B
        5
      • 94.100.180.31:25
        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
        97.17.167.52.in-addr.arpa
        dns
        71 B
        145 B
        1
        1

        DNS Request

        97.17.167.52.in-addr.arpa

      • 8.8.8.8:53
        172.214.232.199.in-addr.arpa
        dns
        74 B
        128 B
        1
        1

        DNS Request

        172.214.232.199.in-addr.arpa

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

        DNS Request

        5.114.82.104.in-addr.arpa

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

        DNS Request

        133.32.126.40.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

        20.70.246.20
        20.112.250.133
        20.76.201.171
        20.231.239.246
        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

        52.101.8.49
        52.101.11.0
        52.101.42.0
        52.101.40.26

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

        DNS Request

        20.246.70.20.in-addr.arpa

      • 8.8.8.8:53
        133.211.185.52.in-addr.arpa
        dns
        73 B
        147 B
        1
        1

        DNS Request

        133.211.185.52.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
        mta7.am0.yahoodns.net
        dns
        svchost.exe
        67 B
        195 B
        1
        1

        DNS Request

        mta7.am0.yahoodns.net

        DNS Response

        67.195.228.106
        98.136.96.91
        98.136.96.77
        67.195.204.74
        67.195.228.111
        67.195.228.110
        67.195.228.109
        67.195.204.77

      • 8.8.8.8:53
        50.23.12.20.in-addr.arpa
        dns
        70 B
        156 B
        1
        1

        DNS Request

        50.23.12.20.in-addr.arpa

      • 8.8.8.8:53
        206.23.85.13.in-addr.arpa
        dns
        71 B
        145 B
        1
        1

        DNS Request

        206.23.85.13.in-addr.arpa

      • 8.8.8.8:53
        21.49.80.91.in-addr.arpa
        dns
        70 B
        145 B
        1
        1

        DNS Request

        21.49.80.91.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

        142.251.168.27
        142.250.110.26
        142.251.5.26
        142.251.5.27
        142.250.110.27

      • 8.8.8.8:53
        172.210.232.199.in-addr.arpa
        dns
        74 B
        128 B
        1
        1

        DNS Request

        172.210.232.199.in-addr.arpa

      • 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

        94.100.180.31
        217.69.139.150

      • 8.8.8.8:53
        19.229.111.52.in-addr.arpa
        dns
        216 B
        158 B
        3
        1

        DNS Request

        19.229.111.52.in-addr.arpa

        DNS Request

        19.229.111.52.in-addr.arpa

        DNS Request

        19.229.111.52.in-addr.arpa

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        10.2MB

        MD5

        c06e20edcb67f24d5cb96a166aae33b8

        SHA1

        0c7bc98fa832625466a7e6aef2137066b0bafbb7

        SHA256

        2a4ba2b59354fd8bdd11429db1d4af4353768f861e994f127f13bb6361d3af9f

        SHA512

        eddcb799b2f35eb1ad25846dee832713b9ccc300809078073cbf8fffbbdd978c4738a3ab71ed5107d4162578917f38eb7bb1a3f8719733a1c07c0c3dafd01d96

      • memory/896-13-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/896-12-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/896-11-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/896-18-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/1860-14-0x0000000000370000-0x0000000000385000-memory.dmp

        Filesize

        84KB

      • memory/1860-16-0x0000000000370000-0x0000000000385000-memory.dmp

        Filesize

        84KB

      • memory/1860-17-0x0000000000370000-0x0000000000385000-memory.dmp

        Filesize

        84KB

      • memory/2960-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2960-2-0x00000000004B0000-0x00000000004C3000-memory.dmp

        Filesize

        76KB

      • memory/2960-8-0x00000000004B0000-0x00000000004C3000-memory.dmp

        Filesize

        76KB

      • memory/2960-9-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2960-7-0x0000000000400000-0x000000000044F000-memory.dmp

        Filesize

        316KB

      • memory/2960-1-0x0000000000530000-0x0000000000630000-memory.dmp

        Filesize

        1024KB

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