Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    28/03/2022, 14:08

General

  • Target
    proxychain.exe
  • Size 255KB
  • Sample220328-rfva3sehdl
  • SHA256 104e6094ef239aae7e4317433e868b67108b8157627dc222f996cb087795334f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • gozi_ifsb

Botnet
  • 202201

C2
  • telemetry.skype.com

  • gldobermanioliusdd.ru

  • semenshovdobermanoba4.ru

  • gdobermanciluiprada8.ru

  • mesantospilioosd.ru

  • klavsantosnka93hhu8.ru

  • checkgosantoswahnedr.ru

  • stypesantosgirlsld99.ru

  • dasantoseikosano000.ru

  • rkrygliyakinaribalke.ru

  • klkrygliyaysiroppe0.ru

  • musskrygliyakatt67838.ru

Attributes
  • base_path

    /drew/

  • build

    250224

  • exe_type

    loader

  • extension

    .jlk

  • server_id

    50

rsa_pubkey.plain
aes.plain

Extracted

Family
  • gozi_ifsb

Botnet
  • 202201

C2
  • telemetry.skype.com

  • tanto-zero.ru

  • rancho0bala99.ru

  • kleinesokos2.ru

  • monk0vdiaa888.ru

  • monk0pokerkim555.ru

  • monk0nelaveredii.ru

  • tmonk0echetypo.ru

  • lamonk0ntiymaximus.ru

  • bumonk0galo.ru

  • kolemonk0iumtracker.ru

  • dmonk0hevkinoo0.ru

Attributes
  • base_path

    /images/

  • exe_type

    worker

  • extension

    .avi

  • server_id

    50

rsa_pubkey.plain
aes.plain

Signatures

  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M2 (_2F)

    suricata: ET MALWARE Ursnif Variant CnC Beacon - URI Struct M2 (_2F)

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3440
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
      PID:4048
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:3728
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2436
        • C:\Users\Admin\AppData\Local\Temp\proxychain.exe
          "C:\Users\Admin\AppData\Local\Temp\proxychain.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2692
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 472
            3⤵
            • Program crash
            PID:1748
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "about:<hta:application><script>Wjr9='wscript.shell';resizeTo(0,2);eval(new ActiveXObject(Wjr9).regread('HKCU\\\Software\\AppDataLow\\Software\\Microsoft\\3B357854-5E29-2581-409F-72297443C66D\\\ReplyJunk'));if(!window.flag)close()</script>"
          2⤵
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:1560
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" new-alias -name uqsbpgnkuk -value gp; new-alias -name qyniep -value iex; qyniep ([System.Text.Encoding]::ASCII.GetString((uqsbpgnkuk "HKCU:Software\AppDataLow\Software\Microsoft\3B357854-5E29-2581-409F-72297443C66D").DocumentLevel))
            3⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1896
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
              "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\c5mtfjqc\c5mtfjqc.cmdline"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:224
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9CE4.tmp" "c:\Users\Admin\AppData\Local\Temp\c5mtfjqc\CSC22C7A335E984BFDA6A6F1BCC38EEDD2.TMP"
                5⤵
                  PID:2152
              • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
                "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ob4coljy\ob4coljy.cmdline"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:3156
                • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
                  C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES9E8A.tmp" "c:\Users\Admin\AppData\Local\Temp\ob4coljy\CSCA8552D7033FC42ADAEE3A5B6B78F921F.TMP"
                  5⤵
                    PID:824
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C ping localhost -n 5 && del "C:\Users\Admin\AppData\Local\Temp\proxychain.exe"
              2⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:1416
              • C:\Windows\system32\PING.EXE
                ping localhost -n 5
                3⤵
                • Runs ping.exe
                • Suspicious behavior: CmdExeWriteProcessMemorySpam
                PID:1468
            • C:\Windows\system32\cmd.exe
              cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\5DD1.bi1"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1488
              • C:\Windows\system32\nslookup.exe
                nslookup myip.opendns.com resolver1.opendns.com
                3⤵
                  PID:2256
              • C:\Windows\system32\cmd.exe
                cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\5DD1.bi1"
                2⤵
                  PID:2708
                • C:\Windows\syswow64\cmd.exe
                  "C:\Windows\syswow64\cmd.exe" /C pause dll mail, ,
                  2⤵
                    PID:3320
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2692 -ip 2692
                  1⤵
                    PID:3568

                  Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        5DD1.bi1

                        • Path C:\Users\Admin\AppData\Local\Temp\5DD1.bi1
                        • Size 118B
                        • SHA256 d22c844d015c874bbdbeb12b73ef54585cbd435c28f50d536fb4ace26d859ed8
                        • MD5 SHA1 SHA512

                        5DD1.bi1

                        • Path C:\Users\Admin\AppData\Local\Temp\5DD1.bi1
                        • Size 118B
                        • SHA256 d22c844d015c874bbdbeb12b73ef54585cbd435c28f50d536fb4ace26d859ed8
                        • MD5 SHA1 SHA512

                        RES9CE4.tmp

                        • Path C:\Users\Admin\AppData\Local\Temp\RES9CE4.tmp
                        • Size 1KB
                        • SHA256 03d6b486b3bb805ac53d9700dd1934ae2fc6ffb778c7f9377c33618defa66356
                        • MD5 SHA1 SHA512

                        RES9E8A.tmp

                        • Path C:\Users\Admin\AppData\Local\Temp\RES9E8A.tmp
                        • Size 1KB
                        • SHA256 af9801a91aee4ed86cafc7106454bffa2e4878287f51e0f7e10f3ca0d1b531bc
                        • MD5 SHA1 SHA512

                        c5mtfjqc.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\c5mtfjqc\c5mtfjqc.dll
                        • Size 3KB
                        • SHA256 fd39c103f27d21786bfa71ef5993bb7f4c209f1585c353aed251cfec658d02c7
                        • MD5 SHA1 SHA512

                        ob4coljy.dll

                        • Path C:\Users\Admin\AppData\Local\Temp\ob4coljy\ob4coljy.dll
                        • Size 3KB
                        • SHA256 10b46072906fa277c249eb88484d8c7091a27a32c8b86db8e982d716480f4a71
                        • MD5 SHA1 SHA512

                        CSC22C7A335E984BFDA6A6F1BCC38EEDD2.TMP

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\c5mtfjqc\CSC22C7A335E984BFDA6A6F1BCC38EEDD2.TMP
                        • Size 652B
                        • SHA256 276e425828260f73772b8801f219943ca3c5ac55c5fa2207a168c68848c50929
                        • MD5 SHA1 SHA512

                        c5mtfjqc.0.cs

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\c5mtfjqc\c5mtfjqc.0.cs
                        • Size 404B
                        • SHA256 d808e7944f6d224e6207ead29cb1b7dd234016fc9c0aa7b7208fc7d6233e4cd8
                        • MD5 SHA1 SHA512

                        c5mtfjqc.cmdline

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\c5mtfjqc\c5mtfjqc.cmdline
                        • Size 369B
                        • SHA256 10095823ad6a181bf2c87ee78d2c78f69478806dbb922a428495977714dd53b0
                        • MD5 SHA1 SHA512

                        CSCA8552D7033FC42ADAEE3A5B6B78F921F.TMP

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\ob4coljy\CSCA8552D7033FC42ADAEE3A5B6B78F921F.TMP
                        • Size 652B
                        • SHA256 99412bd55a8fc8e9dca32370b2976476208c118baa6d5f78dcecce3cd7b861a1
                        • MD5 SHA1 SHA512

                        ob4coljy.0.cs

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\ob4coljy\ob4coljy.0.cs
                        • Size 394B
                        • SHA256 3849e6268e834d1ae7c9d9c9a8073383600d6e3b16fcf19d4eda5aefd3ab702c
                        • MD5 SHA1 SHA512

                        ob4coljy.cmdline

                        • Path \??\c:\Users\Admin\AppData\Local\Temp\ob4coljy\ob4coljy.cmdline
                        • Size 369B
                        • SHA256 e30dac847dae2a9341c6bc7953d1f65921aeb79ad74722051b95c42c0fea9b21
                        • MD5 SHA1 SHA512

                        memory/1896-140-0x0000029F5AAB6000-0x0000029F5AAB8000-memory.dmp

                        memory/1896-136-0x0000029F73C40000-0x0000029F73C62000-memory.dmp

                        memory/1896-138-0x0000029F5AAB0000-0x0000029F5AAB2000-memory.dmp

                        memory/1896-155-0x0000029F73D80000-0x0000029F73DBE000-memory.dmp

                        memory/1896-139-0x0000029F5AAB3000-0x0000029F5AAB5000-memory.dmp

                        memory/1896-137-0x00007FFA9BD80000-0x00007FFA9C841000-memory.dmp

                        memory/2692-130-0x00000000006D8000-0x00000000006E8000-memory.dmp

                        memory/2692-133-0x0000000000400000-0x000000000046A000-memory.dmp

                        memory/2692-132-0x00000000021A0000-0x00000000021AB000-memory.dmp

                        memory/2692-131-0x00000000006D8000-0x00000000006E8000-memory.dmp

                        memory/3320-164-0x0000000000936B20-0x0000000000936B24-memory.dmp