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Analysis

  • max time kernel
    1800s
  • max time network
    1452s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12/07/2021, 16:55

General

  • Target

    toolspab2 (22).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 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 3 IoCs
  • 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 (22).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:4180
  • C:\Users\Admin\AppData\Local\Temp\15DA.exe
    C:\Users\Admin\AppData\Local\Temp\15DA.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:800
  • C:\Users\Admin\AppData\Local\Temp\17A1.exe
    C:\Users\Admin\AppData\Local\Temp\17A1.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:364
  • C:\Users\Admin\AppData\Local\Temp\1996.exe
    C:\Users\Admin\AppData\Local\Temp\1996.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Users\Admin\AppData\Local\Temp\1996.exe
      C:\Users\Admin\AppData\Local\Temp\1996.exe
      2⤵
      • Executes dropped EXE
      PID:1652
    • C:\Users\Admin\AppData\Local\Temp\1996.exe
      C:\Users\Admin\AppData\Local\Temp\1996.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2372
  • C:\Users\Admin\AppData\Local\Temp\1D50.exe
    C:\Users\Admin\AppData\Local\Temp\1D50.exe
    1⤵
    • Executes dropped EXE
    PID:1680
  • C:\Users\Admin\AppData\Local\Temp\2148.exe
    C:\Users\Admin\AppData\Local\Temp\2148.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:1828
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\2148.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1816
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1344
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:3104
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:3644
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:4340
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1852
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:4600
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:4580
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:4692
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:3344
                    • C:\Users\Admin\AppData\Roaming\wusdrts
                      C:\Users\Admin\AppData\Roaming\wusdrts
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:2076
                      • C:\Users\Admin\AppData\Roaming\wusdrts
                        C:\Users\Admin\AppData\Roaming\wusdrts
                        2⤵
                        • Executes dropped EXE
                        PID:2124
                    • C:\Users\Admin\AppData\Roaming\wusdrts
                      C:\Users\Admin\AppData\Roaming\wusdrts
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:3992
                      • C:\Users\Admin\AppData\Roaming\wusdrts
                        C:\Users\Admin\AppData\Roaming\wusdrts
                        2⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        • Checks SCSI registry key(s)
                        • Suspicious behavior: MapViewOfSection
                        PID:2880
                    • C:\Users\Admin\AppData\Roaming\wusdrts
                      C:\Users\Admin\AppData\Roaming\wusdrts
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:4200
                      • C:\Users\Admin\AppData\Roaming\wusdrts
                        C:\Users\Admin\AppData\Roaming\wusdrts
                        2⤵
                        • Executes dropped EXE
                        PID:3676

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • memory/1084-132-0x0000000000F50000-0x0000000000F51000-memory.dmp

                      Filesize

                      4KB

                    • memory/1084-134-0x00000000057C0000-0x00000000057C1000-memory.dmp

                      Filesize

                      4KB

                    • memory/1084-135-0x00000000032C0000-0x00000000032C1000-memory.dmp

                      Filesize

                      4KB

                    • memory/1084-139-0x0000000005960000-0x0000000005961000-memory.dmp

                      Filesize

                      4KB

                    • memory/1344-147-0x00000000009C0000-0x0000000000A2B000-memory.dmp

                      Filesize

                      428KB

                    • memory/1344-145-0x0000000000A30000-0x0000000000AA4000-memory.dmp

                      Filesize

                      464KB

                    • memory/1680-146-0x0000000002F10000-0x0000000002FA1000-memory.dmp

                      Filesize

                      580KB

                    • memory/1680-151-0x0000000000400000-0x0000000002C3C000-memory.dmp

                      Filesize

                      40.2MB

                    • memory/1828-148-0x00000000771D0000-0x000000007735E000-memory.dmp

                      Filesize

                      1.6MB

                    • memory/1828-143-0x0000000000FE0000-0x00000000013D4000-memory.dmp

                      Filesize

                      4.0MB

                    • memory/1852-175-0x0000000003210000-0x0000000003219000-memory.dmp

                      Filesize

                      36KB

                    • memory/1852-174-0x0000000003220000-0x0000000003225000-memory.dmp

                      Filesize

                      20KB

                    • memory/2372-168-0x0000000002470000-0x0000000002471000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-194-0x0000000006190000-0x0000000006191000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-170-0x0000000004950000-0x0000000004951000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-167-0x0000000004F60000-0x0000000004F61000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-171-0x0000000004990000-0x0000000004991000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-190-0x0000000005E00000-0x0000000005E01000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-159-0x0000000000400000-0x000000000041E000-memory.dmp

                      Filesize

                      120KB

                    • memory/2372-191-0x0000000006500000-0x0000000006501000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-176-0x0000000002490000-0x00000000024CE000-memory.dmp

                      Filesize

                      248KB

                    • memory/2372-192-0x0000000006A30000-0x0000000006A31000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-178-0x0000000004B20000-0x0000000004B21000-memory.dmp

                      Filesize

                      4KB

                    • memory/2372-193-0x0000000005D90000-0x0000000005D91000-memory.dmp

                      Filesize

                      4KB

                    • memory/2900-118-0x0000000001040000-0x0000000001057000-memory.dmp

                      Filesize

                      92KB

                    • memory/2900-207-0x00000000010B0000-0x00000000010C7000-memory.dmp

                      Filesize

                      92KB

                    • memory/3104-153-0x00000000012C0000-0x00000000012CC000-memory.dmp

                      Filesize

                      48KB

                    • memory/3104-152-0x00000000012D0000-0x00000000012D7000-memory.dmp

                      Filesize

                      28KB

                    • memory/3344-189-0x00000000007B0000-0x00000000007B9000-memory.dmp

                      Filesize

                      36KB

                    • memory/3344-188-0x00000000007C0000-0x00000000007C5000-memory.dmp

                      Filesize

                      20KB

                    • memory/3644-157-0x0000000000820000-0x000000000082B000-memory.dmp

                      Filesize

                      44KB

                    • memory/3644-156-0x0000000000830000-0x0000000000837000-memory.dmp

                      Filesize

                      28KB

                    • memory/3992-206-0x0000000000550000-0x000000000069A000-memory.dmp

                      Filesize

                      1.3MB

                    • memory/4180-114-0x0000000000400000-0x000000000040C000-memory.dmp

                      Filesize

                      48KB

                    • memory/4340-165-0x0000000001200000-0x0000000001209000-memory.dmp

                      Filesize

                      36KB

                    • memory/4340-166-0x0000000000FF0000-0x0000000000FFF000-memory.dmp

                      Filesize

                      60KB

                    • memory/4580-183-0x0000000000A70000-0x0000000000A79000-memory.dmp

                      Filesize

                      36KB

                    • memory/4580-182-0x0000000000A80000-0x0000000000A84000-memory.dmp

                      Filesize

                      16KB

                    • memory/4600-179-0x00000000008B0000-0x00000000008B6000-memory.dmp

                      Filesize

                      24KB

                    • memory/4600-180-0x00000000008A0000-0x00000000008AC000-memory.dmp

                      Filesize

                      48KB

                    • memory/4692-186-0x00000000008B0000-0x00000000008B9000-memory.dmp

                      Filesize

                      36KB

                    • memory/4692-185-0x00000000008C0000-0x00000000008C5000-memory.dmp

                      Filesize

                      20KB

                    • memory/4800-117-0x0000000000690000-0x000000000069C000-memory.dmp

                      Filesize

                      48KB