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09-07-2021 23:00

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Analysis

  • max time kernel
    1800s
  • max time network
    1299s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (23).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 3 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 13 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 (23).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (23).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:488
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (23).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (23).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:644
  • C:\Users\Admin\AppData\Local\Temp\3818.exe
    C:\Users\Admin\AppData\Local\Temp\3818.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:3544
  • C:\Users\Admin\AppData\Local\Temp\39DE.exe
    C:\Users\Admin\AppData\Local\Temp\39DE.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:2228
  • C:\Users\Admin\AppData\Local\Temp\3D5A.exe
    C:\Users\Admin\AppData\Local\Temp\3D5A.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Users\Admin\AppData\Local\Temp\3D5A.exe
      C:\Users\Admin\AppData\Local\Temp\3D5A.exe
      2⤵
      • Executes dropped EXE
      PID:3712
    • C:\Users\Admin\AppData\Local\Temp\3D5A.exe
      C:\Users\Admin\AppData\Local\Temp\3D5A.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3840
  • C:\Users\Admin\AppData\Local\Temp\41C0.exe
    C:\Users\Admin\AppData\Local\Temp\41C0.exe
    1⤵
    • Executes dropped EXE
    PID:3704
  • C:\Users\Admin\AppData\Local\Temp\4701.exe
    C:\Users\Admin\AppData\Local\Temp\4701.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:1004
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\4701.exe"
      2⤵
        PID:2224
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          3⤵
          • Delays execution with timeout.exe
          PID:3164
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:2460
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:2472
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:3992
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:488
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:1320
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:1632
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:200
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:2876
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:3356
                      • C:\Users\Admin\AppData\Roaming\hdwsube
                        C:\Users\Admin\AppData\Roaming\hdwsube
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:800
                        • C:\Users\Admin\AppData\Roaming\hdwsube
                          C:\Users\Admin\AppData\Roaming\hdwsube
                          2⤵
                          • Executes dropped EXE
                          PID:3872
                      • C:\Users\Admin\AppData\Roaming\hdwsube
                        C:\Users\Admin\AppData\Roaming\hdwsube
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:2060
                        • C:\Users\Admin\AppData\Roaming\hdwsube
                          C:\Users\Admin\AppData\Roaming\hdwsube
                          2⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Checks SCSI registry key(s)
                          • Suspicious behavior: MapViewOfSection
                          PID:2376
                      • C:\Users\Admin\AppData\Roaming\hdwsube
                        C:\Users\Admin\AppData\Roaming\hdwsube
                        1⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        PID:2040
                        • C:\Users\Admin\AppData\Roaming\hdwsube
                          C:\Users\Admin\AppData\Roaming\hdwsube
                          2⤵
                          • Executes dropped EXE
                          PID:3960

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • memory/200-179-0x0000000002B50000-0x0000000002B54000-memory.dmp

                        Filesize

                        16KB

                      • memory/200-180-0x0000000002B40000-0x0000000002B49000-memory.dmp

                        Filesize

                        36KB

                      • memory/488-167-0x00000000009C0000-0x00000000009CF000-memory.dmp

                        Filesize

                        60KB

                      • memory/488-166-0x00000000009D0000-0x00000000009D9000-memory.dmp

                        Filesize

                        36KB

                      • memory/488-117-0x0000000000690000-0x000000000069C000-memory.dmp

                        Filesize

                        48KB

                      • memory/576-134-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

                        Filesize

                        4KB

                      • memory/576-132-0x00000000004C0000-0x00000000004C1000-memory.dmp

                        Filesize

                        4KB

                      • memory/576-135-0x0000000004C90000-0x0000000004C91000-memory.dmp

                        Filesize

                        4KB

                      • memory/576-136-0x0000000004E30000-0x0000000004E31000-memory.dmp

                        Filesize

                        4KB

                      • memory/644-114-0x0000000000400000-0x000000000040C000-memory.dmp

                        Filesize

                        48KB

                      • memory/1004-143-0x00000000002E0000-0x00000000006D4000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/1004-146-0x0000000077860000-0x00000000779EE000-memory.dmp

                        Filesize

                        1.6MB

                      • memory/1320-171-0x0000000002870000-0x0000000002875000-memory.dmp

                        Filesize

                        20KB

                      • memory/1320-172-0x0000000002860000-0x0000000002869000-memory.dmp

                        Filesize

                        36KB

                      • memory/1632-175-0x0000000000130000-0x0000000000136000-memory.dmp

                        Filesize

                        24KB

                      • memory/1632-176-0x0000000000120000-0x000000000012C000-memory.dmp

                        Filesize

                        48KB

                      • memory/2060-210-0x0000000000460000-0x00000000005AA000-memory.dmp

                        Filesize

                        1.3MB

                      • memory/2460-149-0x0000000002930000-0x000000000299B000-memory.dmp

                        Filesize

                        428KB

                      • memory/2460-148-0x0000000002C00000-0x0000000002C74000-memory.dmp

                        Filesize

                        464KB

                      • memory/2472-153-0x0000000000120000-0x000000000012C000-memory.dmp

                        Filesize

                        48KB

                      • memory/2472-152-0x0000000000130000-0x0000000000137000-memory.dmp

                        Filesize

                        28KB

                      • memory/2876-183-0x00000000001E0000-0x00000000001E9000-memory.dmp

                        Filesize

                        36KB

                      • memory/2876-182-0x00000000001F0000-0x00000000001F5000-memory.dmp

                        Filesize

                        20KB

                      • memory/3020-118-0x0000000000DC0000-0x0000000000DD7000-memory.dmp

                        Filesize

                        92KB

                      • memory/3020-211-0x0000000001110000-0x0000000001127000-memory.dmp

                        Filesize

                        92KB

                      • memory/3356-185-0x0000000002920000-0x0000000002925000-memory.dmp

                        Filesize

                        20KB

                      • memory/3356-186-0x0000000002910000-0x0000000002919000-memory.dmp

                        Filesize

                        36KB

                      • memory/3704-147-0x0000000002F10000-0x0000000002FA1000-memory.dmp

                        Filesize

                        580KB

                      • memory/3704-150-0x0000000000400000-0x0000000002C3C000-memory.dmp

                        Filesize

                        40.2MB

                      • memory/3840-190-0x0000000007BE0000-0x0000000007BE1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-178-0x0000000005800000-0x0000000005801000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-165-0x00000000054F0000-0x00000000054F1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-191-0x0000000006F90000-0x0000000006F91000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-170-0x0000000005590000-0x0000000005591000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-158-0x0000000000400000-0x000000000041E000-memory.dmp

                        Filesize

                        120KB

                      • memory/3840-173-0x0000000005440000-0x0000000005A46000-memory.dmp

                        Filesize

                        6.0MB

                      • memory/3840-164-0x0000000005A50000-0x0000000005A51000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-168-0x0000000005550000-0x0000000005551000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-189-0x0000000006A30000-0x0000000006A31000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-188-0x00000000071B0000-0x00000000071B1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3840-187-0x0000000006AB0000-0x0000000006AB1000-memory.dmp

                        Filesize

                        4KB

                      • memory/3992-155-0x0000000002C20000-0x0000000002C27000-memory.dmp

                        Filesize

                        28KB

                      • memory/3992-156-0x0000000002C10000-0x0000000002C1B000-memory.dmp

                        Filesize

                        44KB