Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    30/11/2021, 09:41

General

  • Target
    b26f43029e309d92f30a759b754dfcf2.exe
  • Size 158KB
  • Sample211130-lnrx2aefal
  • SHA256 6d960492cd435b33c4a7e80919cdbbb15826b8931fef1700273a25ee203d4777
  • 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
  • quadoil.ru

  • lakeflex.ru

Extracted

Family
  • redline

C2
  • 92.255.76.197:38637

Extracted

Family
  • arkei

Botnet
  • Default

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

Extracted

Family
  • redline

Botnet
  • wawa

C2
  • 45.77.80.187:15300

Extracted

Family
  • icedid

Campaign
  • 2904573523

C2
  • placingapie.ink

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • CryptBot

    A C++ stealer distributed widely in bundle with other software.

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • RedLine

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

  • RedLine Payload 9 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.

  • Windows security bypass 2 TTPs
  • suricata: ET MALWARE Win32/IcedID Request Cookie

    suricata: ET MALWARE Win32/IcedID Request Cookie

  • 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 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 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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 1 IoCs
  • Suspicious use of SetThreadContext 6 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.

  • Delays execution with timeout.exe 2 IoCs
  • Modifies data under HKEY_USERS 16 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\b26f43029e309d92f30a759b754dfcf2.exe
    "C:\Users\Admin\AppData\Local\Temp\b26f43029e309d92f30a759b754dfcf2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2776
    • C:\Users\Admin\AppData\Local\Temp\b26f43029e309d92f30a759b754dfcf2.exe
      "C:\Users\Admin\AppData\Local\Temp\b26f43029e309d92f30a759b754dfcf2.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:3496
  • C:\Users\Admin\AppData\Local\Temp\EACE.exe
    C:\Users\Admin\AppData\Local\Temp\EACE.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1976
    • C:\Users\Admin\AppData\Local\Temp\EACE.exe
      C:\Users\Admin\AppData\Local\Temp\EACE.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2968
  • C:\Users\Admin\AppData\Local\Temp\EE59.exe
    C:\Users\Admin\AppData\Local\Temp\EE59.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\itwilfgf\
      2⤵
        PID:1760
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kzefzhkd.exe" C:\Windows\SysWOW64\itwilfgf\
        2⤵
          PID:2104
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create itwilfgf binPath= "C:\Windows\SysWOW64\itwilfgf\kzefzhkd.exe /d\"C:\Users\Admin\AppData\Local\Temp\EE59.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:3328
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description itwilfgf "wifi internet conection"
            2⤵
              PID:3264
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start itwilfgf
              2⤵
                PID:1112
              • 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:2700
              • C:\Users\Admin\AppData\Local\Temp\F0FA.exe
                C:\Users\Admin\AppData\Local\Temp\F0FA.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:1516
                • C:\Users\Admin\AppData\Local\Temp\F0FA.exe
                  C:\Users\Admin\AppData\Local\Temp\F0FA.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2860
              • C:\Users\Admin\AppData\Local\Temp\FC46.exe
                C:\Users\Admin\AppData\Local\Temp\FC46.exe
                1⤵
                • Executes dropped EXE
                PID:1168
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1168 -s 500
                  2⤵
                  • Suspicious use of NtCreateProcessExOtherParentProcess
                  • Program crash
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3088
              • C:\Users\Admin\AppData\Local\Temp\1A6.exe
                C:\Users\Admin\AppData\Local\Temp\1A6.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Checks processor information in registry
                PID:2536
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1A6.exe" & exit
                  2⤵
                    PID:3116
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /t 5
                      3⤵
                      • Delays execution with timeout.exe
                      PID:3748
                • C:\Windows\SysWOW64\itwilfgf\kzefzhkd.exe
                  C:\Windows\SysWOW64\itwilfgf\kzefzhkd.exe /d"C:\Users\Admin\AppData\Local\Temp\EE59.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  PID:1912
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:2316
                    • 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:2008
                • C:\Users\Admin\AppData\Local\Temp\1270.exe
                  C:\Users\Admin\AppData\Local\Temp\1270.exe
                  1⤵
                  • Executes dropped EXE
                  • Checks BIOS information in registry
                  • Checks whether UAC is enabled
                  • Suspicious use of NtSetInformationThreadHideFromDebugger
                  • Checks processor information in registry
                  PID:3640
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c rd /s /q C:\Users\Admin\AppData\Local\Temp\pIPTMCKJQUMtE & timeout 4 & del /f /q "C:\Users\Admin\AppData\Local\Temp\1270.exe"
                    2⤵
                      PID:2668
                      • C:\Windows\SysWOW64\timeout.exe
                        timeout 4
                        3⤵
                        • Delays execution with timeout.exe
                        PID:3184
                  • C:\Windows\system32\regsvr32.exe
                    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\204C.dll
                    1⤵
                    • Loads dropped DLL
                    PID:3844
                  • C:\Users\Admin\AppData\Local\Temp\2984.exe
                    C:\Users\Admin\AppData\Local\Temp\2984.exe
                    1⤵
                    • Executes dropped EXE
                    PID:648
                    • C:\Users\Admin\AppData\Local\Temp\Netflix.exe
                      "C:\Users\Admin\AppData\Local\Temp\Netflix.exe"
                      2⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:3816
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        #cmd
                        3⤵
                          PID:756
                      • C:\Users\Admin\AppData\Local\Temp\next.exe
                        "C:\Users\Admin\AppData\Local\Temp\next.exe"
                        2⤵
                        • Executes dropped EXE
                        • Suspicious use of AdjustPrivilegeToken
                        PID:916
                    • C:\Users\Admin\AppData\Local\Temp\2CD1.exe
                      C:\Users\Admin\AppData\Local\Temp\2CD1.exe
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1332

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          memory/648-201-0x0000000000A10000-0x0000000000A11000-memory.dmp

                          memory/740-148-0x0000000003350000-0x0000000003363000-memory.dmp

                          memory/740-149-0x0000000000400000-0x000000000322A000-memory.dmp

                          memory/740-144-0x0000000003546000-0x0000000003557000-memory.dmp

                          memory/756-254-0x00000000057A0000-0x00000000057A1000-memory.dmp

                          memory/756-246-0x0000000000400000-0x0000000000428000-memory.dmp

                          memory/756-255-0x0000000005690000-0x0000000005C96000-memory.dmp

                          memory/916-267-0x00000000024F0000-0x00000000024F1000-memory.dmp

                          memory/916-269-0x00000000024F2000-0x00000000024F3000-memory.dmp

                          memory/916-270-0x00000000024F3000-0x00000000024F4000-memory.dmp

                          memory/916-262-0x0000000000660000-0x0000000000699000-memory.dmp

                          memory/916-256-0x0000000000573000-0x000000000059F000-memory.dmp

                          memory/916-264-0x0000000000400000-0x00000000004E9000-memory.dmp

                          memory/916-266-0x00000000024F4000-0x00000000024F6000-memory.dmp

                          memory/916-257-0x0000000002450000-0x000000000247E000-memory.dmp

                          memory/1168-147-0x0000000000400000-0x000000000042C000-memory.dmp

                          memory/1168-146-0x00000000001F0000-0x00000000001F9000-memory.dmp

                          memory/1168-145-0x00000000001E0000-0x00000000001E9000-memory.dmp

                          memory/1332-209-0x00000000014F0000-0x00000000014F1000-memory.dmp

                          memory/1332-207-0x0000000000B10000-0x0000000000B11000-memory.dmp

                          memory/1332-215-0x0000000005550000-0x0000000005551000-memory.dmp

                          memory/1516-138-0x0000000003010000-0x0000000003011000-memory.dmp

                          memory/1516-137-0x00000000055B0000-0x00000000055B1000-memory.dmp

                          memory/1516-139-0x00000000057B0000-0x00000000057B1000-memory.dmp

                          memory/1516-140-0x0000000005CC0000-0x0000000005CC1000-memory.dmp

                          memory/1516-135-0x0000000000D30000-0x0000000000D31000-memory.dmp

                          memory/1912-193-0x00000000032A0000-0x00000000033EA000-memory.dmp

                          memory/1912-204-0x0000000000400000-0x000000000322A000-memory.dmp

                          memory/1920-122-0x0000000000CE0000-0x0000000000CF6000-memory.dmp

                          memory/1920-165-0x0000000002B10000-0x0000000002B26000-memory.dmp

                          memory/2008-228-0x00000000004A1000-0x0000000000572000-memory.dmp

                          memory/2008-229-0x00000000004A0000-0x0000000000591000-memory.dmp

                          memory/2008-233-0x00000000004A0000-0x0000000000591000-memory.dmp

                          memory/2316-196-0x0000000000030000-0x0000000000031000-memory.dmp

                          memory/2316-194-0x0000000000120000-0x0000000000135000-memory.dmp

                          memory/2316-197-0x0000000000030000-0x0000000000031000-memory.dmp

                          memory/2536-172-0x0000000000400000-0x0000000002B6E000-memory.dmp

                          memory/2536-168-0x0000000002CC0000-0x0000000002CE1000-memory.dmp

                          memory/2536-167-0x00000000001E0000-0x00000000001F3000-memory.dmp

                          memory/2776-120-0x0000000004880000-0x0000000004888000-memory.dmp

                          memory/2776-121-0x0000000004890000-0x0000000004899000-memory.dmp

                          memory/2860-150-0x0000000000400000-0x0000000000420000-memory.dmp

                          memory/2860-166-0x00000000051E0000-0x00000000057E6000-memory.dmp

                          memory/2860-162-0x00000000052B0000-0x00000000052B1000-memory.dmp

                          memory/2860-158-0x00000000057F0000-0x00000000057F1000-memory.dmp

                          memory/2860-217-0x0000000006CD0000-0x0000000006CD1000-memory.dmp

                          memory/2860-160-0x0000000005250000-0x0000000005251000-memory.dmp

                          memory/2860-163-0x00000000052F0000-0x00000000052F1000-memory.dmp

                          memory/2860-218-0x00000000073D0000-0x00000000073D1000-memory.dmp

                          memory/2860-161-0x0000000005380000-0x0000000005381000-memory.dmp

                          memory/2860-188-0x0000000005FA0000-0x0000000005FA1000-memory.dmp

                          memory/2860-186-0x0000000005E00000-0x0000000005E01000-memory.dmp

                          memory/3496-118-0x0000000000400000-0x0000000000409000-memory.dmp

                          memory/3640-179-0x00000000011D0000-0x00000000018B2000-memory.dmp

                          memory/3640-180-0x00000000011D0000-0x00000000018B2000-memory.dmp

                          memory/3640-181-0x00000000011D0000-0x00000000018B2000-memory.dmp

                          memory/3640-183-0x00000000011D0000-0x00000000018B2000-memory.dmp

                          memory/3640-182-0x0000000077250000-0x00000000773DE000-memory.dmp

                          memory/3816-243-0x000000001B8E0000-0x000000001B8E2000-memory.dmp

                          memory/3816-244-0x000000001D380000-0x000000001D381000-memory.dmp

                          memory/3816-238-0x0000000000730000-0x0000000000731000-memory.dmp

                          memory/3816-245-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

                          memory/3844-296-0x0000000001E30000-0x0000000001E93000-memory.dmp