Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    15/01/2022, 03:24

General

  • Target

    d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9.exe

  • Size

    318KB

  • MD5

    4f6b3a98f17a488dfdd4f772f98db4a8

  • SHA1

    c8f298aef056d688805a8f147839d10ae27c62fb

  • SHA256

    d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9

  • SHA512

    a296e8b1fa929e84e89106ffa1ef81b274012456b3237b1e21d2a6c8957e413cdae47fce784370a77c5843ee86b0b85974047a5d33443c2a5cb1801452471546

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
  • xmrig

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

  • Arkei Stealer Payload 2 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 14 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 4 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 3 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 12 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\d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9.exe
    "C:\Users\Admin\AppData\Local\Temp\d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Users\Admin\AppData\Local\Temp\d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9.exe
      "C:\Users\Admin\AppData\Local\Temp\d5e3fa08e6bc8e10e2476b99152c37d620025dc660d696266278ee2e312264f9.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:580
  • C:\Users\Admin\AppData\Local\Temp\658C.exe
    C:\Users\Admin\AppData\Local\Temp\658C.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:1964
  • C:\Users\Admin\AppData\Local\Temp\6D1E.exe
    C:\Users\Admin\AppData\Local\Temp\6D1E.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\6D1E.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:2972
  • C:\Users\Admin\AppData\Local\Temp\70F8.exe
    C:\Users\Admin\AppData\Local\Temp\70F8.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1012
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yyxoggo\
      2⤵
        PID:1112
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ecaphuqt.exe" C:\Windows\SysWOW64\yyxoggo\
        2⤵
          PID:1412
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create yyxoggo binPath= "C:\Windows\SysWOW64\yyxoggo\ecaphuqt.exe /d\"C:\Users\Admin\AppData\Local\Temp\70F8.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1768
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description yyxoggo "wifi internet conection"
            2⤵
              PID:2612
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start yyxoggo
              2⤵
                PID:2996
              • 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:944
              • C:\Users\Admin\AppData\Local\Temp\735A.exe
                C:\Users\Admin\AppData\Local\Temp\735A.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:4068
                • C:\Users\Admin\AppData\Local\Temp\735A.exe
                  C:\Users\Admin\AppData\Local\Temp\735A.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3988
              • C:\Windows\SysWOW64\yyxoggo\ecaphuqt.exe
                C:\Windows\SysWOW64\yyxoggo\ecaphuqt.exe /d"C:\Users\Admin\AppData\Local\Temp\70F8.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:3264
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Suspicious use of SetThreadContext
                  • Modifies data under HKEY_USERS
                  • Suspicious use of WriteProcessMemory
                  PID:3552
                  • 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:3452
              • C:\Users\Admin\AppData\Local\Temp\DB8B.exe
                C:\Users\Admin\AppData\Local\Temp\DB8B.exe
                1⤵
                • Executes dropped EXE
                PID:2880
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2880 -s 400
                  2⤵
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2188
              • C:\Users\Admin\AppData\Local\Temp\DE6A.exe
                C:\Users\Admin\AppData\Local\Temp\DE6A.exe
                1⤵
                • Executes dropped EXE
                PID:604
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 604 -s 624
                  2⤵
                  • Suspicious use of NtCreateProcessExOtherParentProcess
                  • Program crash
                  PID:872
              • C:\Users\Admin\AppData\Local\Temp\E198.exe
                C:\Users\Admin\AppData\Local\Temp\E198.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:372
              • C:\Users\Admin\AppData\Local\Temp\F2CF.exe
                C:\Users\Admin\AppData\Local\Temp\F2CF.exe
                1⤵
                • Executes dropped EXE
                PID:3952
                • C:\Users\Admin\AppData\Local\Temp\F2CF.exe
                  C:\Users\Admin\AppData\Local\Temp\F2CF.exe
                  2⤵
                  • Executes dropped EXE
                  • Loads dropped DLL
                  PID:1184
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                • Accesses Microsoft Outlook profiles
                • outlook_office_path
                • outlook_win_path
                PID:504
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:3128
                • C:\Users\Admin\AppData\Local\Temp\678.exe
                  C:\Users\Admin\AppData\Local\Temp\678.exe
                  1⤵
                  • Executes dropped EXE
                  • Checks BIOS information in registry
                  • Checks whether UAC is enabled
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3560
                • C:\Users\Admin\AppData\Local\Temp\F716.exe
                  C:\Users\Admin\AppData\Local\Temp\F716.exe
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1684
                • C:\Users\Admin\AppData\Local\Temp\2D0C.exe
                  C:\Users\Admin\AppData\Local\Temp\2D0C.exe
                  1⤵
                  • Executes dropped EXE
                  PID:2032
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 400
                    2⤵
                    • Program crash
                    • Suspicious use of AdjustPrivilegeToken
                    PID:4032

                Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/372-207-0x00000000746A0000-0x0000000074862000-memory.dmp

                        Filesize

                        1.8MB

                      • memory/372-210-0x0000000001300000-0x0000000001383000-memory.dmp

                        Filesize

                        524KB

                      • memory/372-217-0x00000000058E0000-0x000000000591E000-memory.dmp

                        Filesize

                        248KB

                      • memory/372-216-0x0000000005970000-0x0000000005971000-memory.dmp

                        Filesize

                        4KB

                      • memory/372-214-0x0000000005A90000-0x0000000005B9A000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/372-285-0x0000000005C40000-0x0000000005CA6000-memory.dmp

                        Filesize

                        408KB

                      • memory/372-284-0x0000000006AA0000-0x0000000006F9E000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/372-213-0x0000000005880000-0x0000000005892000-memory.dmp

                        Filesize

                        72KB

                      • memory/372-212-0x0000000005F90000-0x0000000006596000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/372-215-0x0000000002D00000-0x0000000002D45000-memory.dmp

                        Filesize

                        276KB

                      • memory/372-211-0x0000000073BB0000-0x0000000073C30000-memory.dmp

                        Filesize

                        512KB

                      • memory/372-220-0x0000000005920000-0x000000000596B000-memory.dmp

                        Filesize

                        300KB

                      • memory/372-209-0x0000000001300000-0x0000000001383000-memory.dmp

                        Filesize

                        524KB

                      • memory/372-206-0x00000000012F0000-0x00000000012F1000-memory.dmp

                        Filesize

                        4KB

                      • memory/372-208-0x0000000075970000-0x0000000075A61000-memory.dmp

                        Filesize

                        964KB

                      • memory/372-218-0x0000000074B70000-0x00000000750F4000-memory.dmp

                        Filesize

                        5.5MB

                      • memory/372-205-0x0000000001300000-0x0000000001383000-memory.dmp

                        Filesize

                        524KB

                      • memory/372-204-0x0000000001300000-0x0000000001383000-memory.dmp

                        Filesize

                        524KB

                      • memory/372-219-0x0000000076860000-0x0000000077BA8000-memory.dmp

                        Filesize

                        19.3MB

                      • memory/372-221-0x00000000737E0000-0x000000007382B000-memory.dmp

                        Filesize

                        300KB

                      • memory/504-276-0x0000000003340000-0x00000000033B4000-memory.dmp

                        Filesize

                        464KB

                      • memory/504-277-0x00000000032D0000-0x000000000333B000-memory.dmp

                        Filesize

                        428KB

                      • memory/580-117-0x0000000000400000-0x0000000000409000-memory.dmp

                        Filesize

                        36KB

                      • memory/604-271-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/604-242-0x000000000309D000-0x000000000311E000-memory.dmp

                        Filesize

                        516KB

                      • memory/604-222-0x0000000002D10000-0x0000000002E5A000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/604-273-0x0000000003120000-0x00000000031C5000-memory.dmp

                        Filesize

                        660KB

                      • memory/604-224-0x0000000002FD0000-0x0000000003090000-memory.dmp

                        Filesize

                        768KB

                      • memory/604-280-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/604-223-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/604-300-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/604-350-0x0000000000400000-0x0000000002BC5000-memory.dmp

                        Filesize

                        39.8MB

                      • memory/920-133-0x00000000001D0000-0x00000000001EC000-memory.dmp

                        Filesize

                        112KB

                      • memory/920-134-0x0000000000400000-0x0000000000560000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/1012-140-0x0000000000400000-0x000000000055F000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/1012-139-0x00000000001D0000-0x00000000001E3000-memory.dmp

                        Filesize

                        76KB

                      • memory/1012-136-0x00000000006F9000-0x000000000070A000-memory.dmp

                        Filesize

                        68KB

                      • memory/1684-255-0x0000000004930000-0x00000000049C2000-memory.dmp

                        Filesize

                        584KB

                      • memory/1684-247-0x0000000000010000-0x000000000001C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1684-264-0x0000000002170000-0x0000000002171000-memory.dmp

                        Filesize

                        4KB

                      • memory/1684-275-0x0000000002173000-0x0000000002175000-memory.dmp

                        Filesize

                        8KB

                      • memory/1684-263-0x00000000021F0000-0x00000000021FA000-memory.dmp

                        Filesize

                        40KB

                      • memory/1684-253-0x0000000004E30000-0x000000000532E000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/1684-249-0x0000000000010000-0x000000000001C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1964-123-0x0000000000460000-0x000000000050E000-memory.dmp

                        Filesize

                        696KB

                      • memory/1964-125-0x0000000000400000-0x0000000000452000-memory.dmp

                        Filesize

                        328KB

                      • memory/1964-124-0x0000000000460000-0x000000000050E000-memory.dmp

                        Filesize

                        696KB

                      • memory/2880-197-0x0000000002490000-0x00000000024F0000-memory.dmp

                        Filesize

                        384KB

                      • memory/3056-152-0x0000000002600000-0x0000000002616000-memory.dmp

                        Filesize

                        88KB

                      • memory/3056-119-0x0000000000610000-0x0000000000626000-memory.dmp

                        Filesize

                        88KB

                      • memory/3128-278-0x0000000000910000-0x0000000000917000-memory.dmp

                        Filesize

                        28KB

                      • memory/3128-279-0x0000000000900000-0x000000000090C000-memory.dmp

                        Filesize

                        48KB

                      • memory/3264-158-0x0000000000400000-0x000000000055F000-memory.dmp

                        Filesize

                        1.4MB

                      • memory/3452-191-0x00000000032B0000-0x00000000033A1000-memory.dmp

                        Filesize

                        964KB

                      • memory/3452-186-0x00000000032B0000-0x00000000033A1000-memory.dmp

                        Filesize

                        964KB

                      • memory/3552-162-0x0000000000290000-0x0000000000291000-memory.dmp

                        Filesize

                        4KB

                      • memory/3552-163-0x0000000000380000-0x0000000000395000-memory.dmp

                        Filesize

                        84KB

                      • memory/3552-159-0x0000000000380000-0x0000000000395000-memory.dmp

                        Filesize

                        84KB

                      • memory/3552-161-0x0000000000290000-0x0000000000291000-memory.dmp

                        Filesize

                        4KB

                      • memory/3560-287-0x0000000000400000-0x00000000009FC000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/3560-288-0x0000000002A90000-0x0000000002A91000-memory.dmp

                        Filesize

                        4KB

                      • memory/3560-286-0x0000000002A80000-0x0000000002A81000-memory.dmp

                        Filesize

                        4KB

                      • memory/3672-116-0x0000000000640000-0x0000000000649000-memory.dmp

                        Filesize

                        36KB

                      • memory/3672-115-0x000000000083A000-0x000000000084B000-memory.dmp

                        Filesize

                        68KB

                      • memory/3988-176-0x0000000004DA0000-0x00000000053A6000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/3988-192-0x0000000006870000-0x0000000006A32000-memory.dmp

                        Filesize

                        1.8MB

                      • memory/3988-164-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3988-193-0x0000000006F70000-0x000000000749C000-memory.dmp

                        Filesize

                        5.2MB

                      • memory/3988-170-0x00000000053B0000-0x00000000059B6000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/3988-168-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3988-171-0x0000000004DE0000-0x0000000004DF2000-memory.dmp

                        Filesize

                        72KB

                      • memory/3988-181-0x00000000051A0000-0x0000000005216000-memory.dmp

                        Filesize

                        472KB

                      • memory/3988-169-0x0000000000400000-0x0000000000420000-memory.dmp

                        Filesize

                        128KB

                      • memory/3988-182-0x00000000052C0000-0x0000000005352000-memory.dmp

                        Filesize

                        584KB

                      • memory/3988-174-0x0000000004E80000-0x0000000004ECB000-memory.dmp

                        Filesize

                        300KB

                      • memory/3988-173-0x0000000004E40000-0x0000000004E7E000-memory.dmp

                        Filesize

                        248KB

                      • memory/3988-172-0x0000000004F10000-0x000000000501A000-memory.dmp

                        Filesize

                        1.0MB

                      • memory/3988-185-0x0000000005B30000-0x0000000005B96000-memory.dmp

                        Filesize

                        408KB

                      • memory/3988-184-0x0000000005360000-0x000000000537E000-memory.dmp

                        Filesize

                        120KB

                      • memory/3988-183-0x0000000005EC0000-0x00000000063BE000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/4068-142-0x0000000000160000-0x00000000001EA000-memory.dmp

                        Filesize

                        552KB

                      • memory/4068-147-0x0000000004930000-0x0000000004931000-memory.dmp

                        Filesize

                        4KB

                      • memory/4068-141-0x0000000000160000-0x00000000001EA000-memory.dmp

                        Filesize

                        552KB

                      • memory/4068-148-0x00000000049D0000-0x0000000004A46000-memory.dmp

                        Filesize

                        472KB

                      • memory/4068-151-0x00000000049B0000-0x00000000049CE000-memory.dmp

                        Filesize

                        120KB

                      • memory/4068-156-0x0000000005270000-0x000000000576E000-memory.dmp

                        Filesize

                        5.0MB

                      • memory/4068-146-0x0000000004B70000-0x0000000004B71000-memory.dmp

                        Filesize

                        4KB