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Analysis

  • max time kernel
    1801s
  • max time network
    1311s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (20).exe

  • Size

    315KB

  • MD5

    585c257e0b345b762e7cdc407d8f9da2

  • SHA1

    ffee403d97b76c3460fc166b9d5ce1205cd216a5

  • SHA256

    4a0ecbcf9b54ed1c9654eb9ee214a797f48c980c6d03a261f62fa9671a2733d6

  • SHA512

    14d39a6cd1c6d912cae7c35e2a98affcd5a9c1df6b947c42de65344e08d34912b09ccac83f9d8c3213b4e3d555769801e8218cb3f4b970d1d08606ee5a454ba8

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

1

C2

45.32.235.238:45555

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

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

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • 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 7 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (20).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (20).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (20).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (20).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1232
  • C:\Users\Admin\AppData\Local\Temp\1156.exe
    C:\Users\Admin\AppData\Local\Temp\1156.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:2356
  • C:\Users\Admin\AppData\Local\Temp\136A.exe
    C:\Users\Admin\AppData\Local\Temp\136A.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:3860
  • C:\Users\Admin\AppData\Local\Temp\158E.exe
    C:\Users\Admin\AppData\Local\Temp\158E.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Users\Admin\AppData\Local\Temp\158E.exe
      C:\Users\Admin\AppData\Local\Temp\158E.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2136
  • C:\Users\Admin\AppData\Local\Temp\1987.exe
    C:\Users\Admin\AppData\Local\Temp\1987.exe
    1⤵
    • Executes dropped EXE
    PID:756
  • C:\Users\Admin\AppData\Local\Temp\1DDD.exe
    C:\Users\Admin\AppData\Local\Temp\1DDD.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:1292
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\1DDD.exe"
      2⤵
        PID:3428
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          3⤵
          • Delays execution with timeout.exe
          PID:2724
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:1364
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:2288
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:204
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:4088
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:3280
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:400
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:3516
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:3268
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:2332
                      • C:\Users\Admin\AppData\Roaming\bgfsabf
                        C:\Users\Admin\AppData\Roaming\bgfsabf
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:2608
                        • C:\Users\Admin\AppData\Roaming\bgfsabf
                          C:\Users\Admin\AppData\Roaming\bgfsabf
                          2⤵
                          • Executes dropped EXE
                          PID:216
                      • C:\Users\Admin\AppData\Roaming\bgfsabf
                        C:\Users\Admin\AppData\Roaming\bgfsabf
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:516
                        • C:\Users\Admin\AppData\Roaming\bgfsabf
                          C:\Users\Admin\AppData\Roaming\bgfsabf
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Checks SCSI registry key(s)
                          • Suspicious behavior: MapViewOfSection
                          PID:3824
                      • C:\Users\Admin\AppData\Roaming\bgfsabf
                        C:\Users\Admin\AppData\Roaming\bgfsabf
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:528
                        • C:\Users\Admin\AppData\Roaming\bgfsabf
                          C:\Users\Admin\AppData\Roaming\bgfsabf
                          2⤵
                          • Executes dropped EXE
                          PID:1280

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/204-165-0x0000000000EE0000-0x0000000000EEB000-memory.dmp

                        Filesize

                        44KB

                      • memory/204-164-0x0000000000EF0000-0x0000000000EF7000-memory.dmp

                        Filesize

                        28KB

                      • memory/400-176-0x00000000012D0000-0x00000000012DC000-memory.dmp

                        Filesize

                        48KB

                      • memory/400-175-0x00000000012E0000-0x00000000012E6000-memory.dmp

                        Filesize

                        24KB

                      • memory/528-215-0x00000000004C0000-0x000000000060A000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/756-148-0x0000000000400000-0x0000000002C3C000-memory.dmp

                        Filesize

                        40.2MB

                      • memory/756-146-0x0000000002D80000-0x0000000002ECA000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/1232-114-0x0000000000400000-0x000000000040C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1292-145-0x00000000772A0000-0x000000007742E000-memory.dmp

                        Filesize

                        1.6MB

                      • memory/1292-144-0x0000000000250000-0x0000000000644000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/1364-149-0x0000000000E40000-0x0000000000EAB000-memory.dmp

                        Filesize

                        428KB

                      • memory/1364-147-0x0000000000EB0000-0x0000000000F24000-memory.dmp

                        Filesize

                        464KB

                      • memory/1392-118-0x0000000000B70000-0x0000000000B87000-memory.dmp

                        Filesize

                        92KB

                      • memory/1392-209-0x0000000000BB0000-0x0000000000BC7000-memory.dmp

                        Filesize

                        92KB

                      • memory/2136-189-0x0000000007AF0000-0x0000000007AF1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-150-0x0000000000400000-0x000000000041E000-memory.dmp

                        Filesize

                        120KB

                      • memory/2136-157-0x0000000005AB0000-0x0000000005AB1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-170-0x0000000005850000-0x0000000005851000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-158-0x0000000005540000-0x0000000005541000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-159-0x00000000055A0000-0x00000000055A1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-163-0x00000000055E0000-0x00000000055E1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-166-0x00000000054A0000-0x0000000005AA6000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/2136-190-0x0000000006EE0000-0x0000000006EE1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-188-0x0000000006C80000-0x0000000006C81000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-187-0x00000000070C0000-0x00000000070C1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2136-186-0x00000000069C0000-0x00000000069C1000-memory.dmp

                        Filesize

                        4KB

                      • memory/2156-117-0x0000000000580000-0x000000000058C000-memory.dmp

                        Filesize

                        48KB

                      • memory/2288-161-0x0000000000CF0000-0x0000000000CFC000-memory.dmp

                        Filesize

                        48KB

                      • memory/2288-160-0x0000000000D00000-0x0000000000D07000-memory.dmp

                        Filesize

                        28KB

                      • memory/2332-185-0x0000000003520000-0x0000000003529000-memory.dmp

                        Filesize

                        36KB

                      • memory/2332-184-0x0000000003530000-0x0000000003535000-memory.dmp

                        Filesize

                        20KB

                      • memory/3104-132-0x0000000000010000-0x0000000000011000-memory.dmp

                        Filesize

                        4KB

                      • memory/3104-138-0x0000000004970000-0x0000000004971000-memory.dmp

                        Filesize

                        4KB

                      • memory/3104-135-0x00000000047E0000-0x00000000047E1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3104-134-0x0000000004860000-0x0000000004861000-memory.dmp

                        Filesize

                        4KB

                      • memory/3268-181-0x0000000001210000-0x0000000001215000-memory.dmp

                        Filesize

                        20KB

                      • memory/3268-182-0x0000000001200000-0x0000000001209000-memory.dmp

                        Filesize

                        36KB

                      • memory/3280-172-0x0000000001030000-0x0000000001035000-memory.dmp

                        Filesize

                        20KB

                      • memory/3280-173-0x0000000001020000-0x0000000001029000-memory.dmp

                        Filesize

                        36KB

                      • memory/3516-178-0x0000000000DA0000-0x0000000000DA4000-memory.dmp

                        Filesize

                        16KB

                      • memory/3516-179-0x0000000000D90000-0x0000000000D99000-memory.dmp

                        Filesize

                        36KB

                      • memory/4088-169-0x0000000000FB0000-0x0000000000FBF000-memory.dmp

                        Filesize

                        60KB

                      • memory/4088-168-0x0000000000FC0000-0x0000000000FC9000-memory.dmp

                        Filesize

                        36KB