Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05/01/2022, 09:39

General

  • Target
    fd70ee6d4c86a857d1fba72b8afebc6b.exe
  • Size 297KB
  • Sample220105-lmmlxsaecj
  • SHA256 1f8c0b54f7c138e09db97d0c2bb03d57ddee3e041c88086dfefa42bccb3b2433
  • 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
  • patmushta.info

  • parubey.info

Extracted

Family
  • raccoon

Botnet
  • 10da56e7e71e97bdc1f36eb76813bbc3231de7e4

Attributes
  • url4cnc

    http://194.180.174.53/capibar

    http://91.219.236.18/capibar

    http://194.180.174.41/capibar

    http://91.219.236.148/capibar

    https://t.me/capibar

rc4.plain
rc4.plain

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • 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 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 Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Arkei Stealer Payload 4 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 13 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 12 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Suspicious use of SetThreadContext 5 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 4 IoCs

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

  • Delays execution with timeout.exe 2 IoCs
  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd70ee6d4c86a857d1fba72b8afebc6b.exe
    "C:\Users\Admin\AppData\Local\Temp\fd70ee6d4c86a857d1fba72b8afebc6b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Local\Temp\fd70ee6d4c86a857d1fba72b8afebc6b.exe
      "C:\Users\Admin\AppData\Local\Temp\fd70ee6d4c86a857d1fba72b8afebc6b.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1108
  • C:\Users\Admin\AppData\Local\Temp\6806.exe
    C:\Users\Admin\AppData\Local\Temp\6806.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1220
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {50E6F5F5-CC19-4630-8ECB-E69F554B3B98} S-1-5-21-2329389628-4064185017-3901522362-1000:QSKGHMYQ\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:988
    • C:\Users\Admin\AppData\Roaming\wwvaesv
      C:\Users\Admin\AppData\Roaming\wwvaesv
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Users\Admin\AppData\Roaming\wwvaesv
        C:\Users\Admin\AppData\Roaming\wwvaesv
        3⤵
        • Executes dropped EXE
        PID:1120
  • C:\Users\Admin\AppData\Local\Temp\BD86.exe
    C:\Users\Admin\AppData\Local\Temp\BD86.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:432
    • C:\Users\Admin\AppData\Local\Temp\BD86.exe
      C:\Users\Admin\AppData\Local\Temp\BD86.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1712
  • C:\Users\Admin\AppData\Local\Temp\C209.exe
    C:\Users\Admin\AppData\Local\Temp\C209.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    PID:2012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\C209.exe" & exit
      2⤵
        PID:2044
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:1524
    • C:\Users\Admin\AppData\Local\Temp\D230.exe
      C:\Users\Admin\AppData\Local\Temp\D230.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\atdwpnut\
        2⤵
          PID:816
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sisugpgl.exe" C:\Windows\SysWOW64\atdwpnut\
          2⤵
            PID:812
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create atdwpnut binPath= "C:\Windows\SysWOW64\atdwpnut\sisugpgl.exe /d\"C:\Users\Admin\AppData\Local\Temp\D230.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
              PID:1728
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" description atdwpnut "wifi internet conection"
              2⤵
                PID:1552
              • C:\Windows\SysWOW64\sc.exe
                "C:\Windows\System32\sc.exe" start atdwpnut
                2⤵
                  PID:992
                • 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:984
                • C:\Users\Admin\AppData\Local\Temp\E267.exe
                  C:\Users\Admin\AppData\Local\Temp\E267.exe
                  1⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:1956
                  • C:\Users\Admin\AppData\Local\Temp\E267.exe
                    C:\Users\Admin\AppData\Local\Temp\E267.exe
                    2⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1540
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                  • Accesses Microsoft Outlook profiles
                  • outlook_office_path
                  • outlook_win_path
                  PID:1644
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:552
                  • C:\Users\Admin\AppData\Local\Temp\483C.exe
                    C:\Users\Admin\AppData\Local\Temp\483C.exe
                    1⤵
                    • Executes dropped EXE
                    • Checks BIOS information in registry
                    • Loads dropped DLL
                    • Checks whether UAC is enabled
                    • Suspicious use of NtSetInformationThreadHideFromDebugger
                    • Checks processor information in registry
                    PID:432
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\483C.exe" & exit
                      2⤵
                        PID:668
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 5
                          3⤵
                          • Delays execution with timeout.exe
                          PID:516
                    • C:\Windows\SysWOW64\atdwpnut\sisugpgl.exe
                      C:\Windows\SysWOW64\atdwpnut\sisugpgl.exe /d"C:\Users\Admin\AppData\Local\Temp\D230.exe"
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:1972
                      • C:\Windows\SysWOW64\svchost.exe
                        svchost.exe
                        2⤵
                        • Drops file in System32 directory
                        • Modifies data under HKEY_USERS
                        PID:1976
                    • C:\Users\Admin\AppData\Local\Temp\5805.exe
                      C:\Users\Admin\AppData\Local\Temp\5805.exe
                      1⤵
                      • Executes dropped EXE
                      PID:1964
                    • C:\Users\Admin\AppData\Local\Temp\9E3E.exe
                      C:\Users\Admin\AppData\Local\Temp\9E3E.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of NtSetInformationThreadHideFromDebugger
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1136

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          memory/432-140-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-145-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-138-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-141-0x0000000000140000-0x0000000000141000-memory.dmp

                          memory/432-154-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-155-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-153-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-152-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-142-0x0000000074D30000-0x0000000074D77000-memory.dmp

                          memory/432-143-0x0000000076780000-0x000000007682C000-memory.dmp

                          memory/432-137-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-147-0x00000000010C0000-0x0000000001373000-memory.dmp

                          memory/432-116-0x0000000000220000-0x0000000000229000-memory.dmp

                          memory/432-144-0x00000000000F0000-0x0000000000135000-memory.dmp

                          memory/552-95-0x0000000000060000-0x000000000006C000-memory.dmp

                          memory/552-94-0x00000000000F0000-0x00000000000F7000-memory.dmp

                          memory/1108-57-0x0000000075421000-0x0000000075423000-memory.dmp

                          memory/1108-55-0x0000000000400000-0x0000000000409000-memory.dmp

                          memory/1136-209-0x0000000074F70000-0x0000000074FA5000-memory.dmp

                          memory/1136-188-0x0000000001130000-0x00000000011C6000-memory.dmp

                          memory/1136-195-0x0000000074BD0000-0x0000000074D2C000-memory.dmp

                          memory/1136-211-0x0000000074740000-0x0000000074757000-memory.dmp

                          memory/1136-196-0x0000000000830000-0x0000000000875000-memory.dmp

                          memory/1136-198-0x0000000001130000-0x00000000011C6000-memory.dmp

                          memory/1136-199-0x00000000766C0000-0x000000007674F000-memory.dmp

                          memory/1136-186-0x00000000749E0000-0x0000000074A2A000-memory.dmp

                          memory/1136-187-0x0000000001130000-0x00000000011C6000-memory.dmp

                          memory/1136-197-0x0000000001130000-0x00000000011C6000-memory.dmp

                          memory/1136-189-0x0000000000180000-0x0000000000181000-memory.dmp

                          memory/1136-200-0x00000000747B0000-0x0000000074830000-memory.dmp

                          memory/1136-202-0x0000000004E10000-0x0000000004E11000-memory.dmp

                          memory/1136-191-0x0000000076780000-0x000000007682C000-memory.dmp

                          memory/1136-201-0x0000000075420000-0x000000007606A000-memory.dmp

                          memory/1136-192-0x0000000074D30000-0x0000000074D77000-memory.dmp

                          memory/1136-208-0x0000000073F10000-0x0000000073F27000-memory.dmp

                          memory/1136-193-0x0000000076660000-0x00000000766B7000-memory.dmp

                          memory/1136-210-0x000000006EC80000-0x000000006EE10000-memory.dmp

                          memory/1220-63-0x000000000065A000-0x000000000066A000-memory.dmp

                          memory/1220-65-0x0000000000020000-0x0000000000029000-memory.dmp

                          memory/1220-66-0x0000000000400000-0x000000000046D000-memory.dmp

                          memory/1420-60-0x00000000029F0000-0x0000000002A06000-memory.dmp

                          memory/1420-121-0x0000000002BA0000-0x0000000002BB6000-memory.dmp

                          memory/1420-67-0x0000000003940000-0x0000000003956000-memory.dmp

                          memory/1540-99-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-117-0x0000000000430000-0x0000000000431000-memory.dmp

                          memory/1540-104-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-96-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-97-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-98-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-103-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1540-100-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/1644-91-0x00000000000F0000-0x0000000000164000-memory.dmp

                          memory/1644-92-0x0000000000080000-0x00000000000EB000-memory.dmp

                          memory/1644-90-0x00000000739D1000-0x00000000739D3000-memory.dmp

                          memory/1848-59-0x0000000000230000-0x0000000000239000-memory.dmp

                          memory/1848-58-0x0000000000220000-0x0000000000228000-memory.dmp

                          memory/1956-80-0x00000000009E0000-0x0000000000A6A000-memory.dmp

                          memory/1956-85-0x0000000004DA0000-0x0000000004DA1000-memory.dmp

                          memory/1956-86-0x00000000001E0000-0x00000000001E1000-memory.dmp

                          memory/1956-81-0x00000000009E0000-0x0000000000A6A000-memory.dmp

                          memory/1964-205-0x0000000000220000-0x0000000000270000-memory.dmp

                          memory/1964-167-0x0000000002190000-0x0000000002225000-memory.dmp

                          memory/1964-165-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1964-164-0x00000000009FE000-0x0000000000A5B000-memory.dmp

                          memory/1964-163-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1964-162-0x0000000000310000-0x00000000003A7000-memory.dmp

                          memory/1964-160-0x000000000098A000-0x00000000009FD000-memory.dmp

                          memory/1964-203-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1964-168-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1964-207-0x0000000000400000-0x0000000000885000-memory.dmp

                          memory/1964-206-0x0000000002350000-0x00000000023E2000-memory.dmp

                          memory/1972-181-0x0000000000400000-0x0000000002B84000-memory.dmp

                          memory/1976-178-0x0000000000080000-0x0000000000095000-memory.dmp

                          memory/1976-177-0x0000000000080000-0x0000000000095000-memory.dmp

                          memory/1984-124-0x0000000000400000-0x0000000002B84000-memory.dmp

                          memory/1984-123-0x0000000000230000-0x0000000000243000-memory.dmp

                          memory/1984-122-0x0000000000220000-0x000000000022D000-memory.dmp

                          memory/2012-83-0x0000000000250000-0x000000000026C000-memory.dmp

                          memory/2012-84-0x0000000000400000-0x0000000002B87000-memory.dmp

                          memory/2012-82-0x0000000000230000-0x0000000000241000-memory.dmp