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Analysis

  • max time kernel
    1805s
  • max time network
    1591s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (14).exe

  • Size

    315KB

  • MD5

    1d20e1f65938e837ef1b88f10f1bd6c3

  • SHA1

    703d7098dbfc476d2181b7fc041cc23e49c368f1

  • SHA256

    05cd7440851f13dd8f489bb3c06eba385d85d7d9a77a612049c04c541a88593d

  • SHA512

    f9d333abe1f721b8d45d7bc6b5f286af09a8d233bd1d41f0ad891840cf742364aeca2cb6ccd6543f56a8eaf32804f82f72f961d16d5ba663ad706d164915a196

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

0.1.28.7

C2

gishaobera.xyz:80

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 10 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 10 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1964
  • C:\Users\Admin\AppData\Local\Temp\BC6C.exe
    C:\Users\Admin\AppData\Local\Temp\BC6C.exe
    1⤵
    • Executes dropped EXE
    PID:824
  • C:\Users\Admin\AppData\Local\Temp\C054.exe
    C:\Users\Admin\AppData\Local\Temp\C054.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:620
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\C054.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1376
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1016
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:632
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:920
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1864
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1604
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1720
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1792
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:2004
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1988
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {6DBF0522-B60D-4049-8D42-2A1E1D9FA3E6} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
                      1⤵
                        PID:1836
                        • C:\Users\Admin\AppData\Roaming\fcuirjf
                          C:\Users\Admin\AppData\Roaming\fcuirjf
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:1040
                          • C:\Users\Admin\AppData\Roaming\fcuirjf
                            C:\Users\Admin\AppData\Roaming\fcuirjf
                            3⤵
                            • Executes dropped EXE
                            PID:1840
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {BCE1ECAB-2FC0-437F-BDDB-E71A6D7C1A3E} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
                        1⤵
                          PID:468
                          • C:\Users\Admin\AppData\Roaming\fcuirjf
                            C:\Users\Admin\AppData\Roaming\fcuirjf
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:868
                            • C:\Users\Admin\AppData\Roaming\fcuirjf
                              C:\Users\Admin\AppData\Roaming\fcuirjf
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:1612
                        • C:\Users\Admin\AppData\Local\Temp\404D.exe
                          C:\Users\Admin\AppData\Local\Temp\404D.exe
                          1⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Suspicious use of SetThreadContext
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1800
                          • C:\Users\Admin\AppData\Local\Temp\404D.exe
                            C:\Users\Admin\AppData\Local\Temp\404D.exe
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1032
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {58067D8C-E512-441C-991F-9BF40C53581D} S-1-5-21-2455352368-1077083310-2879168483-1000:QWOCTUPM\Admin:Interactive:[1]
                          1⤵
                            PID:1836
                            • C:\Users\Admin\AppData\Roaming\fcuirjf
                              C:\Users\Admin\AppData\Roaming\fcuirjf
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:700
                              • C:\Users\Admin\AppData\Roaming\fcuirjf
                                C:\Users\Admin\AppData\Roaming\fcuirjf
                                3⤵
                                • Executes dropped EXE
                                PID:832

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/632-81-0x0000000000070000-0x0000000000077000-memory.dmp

                            Filesize

                            28KB

                          • memory/632-82-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/824-78-0x0000000000400000-0x0000000002C3C000-memory.dmp

                            Filesize

                            40.2MB

                          • memory/824-77-0x0000000002CB0000-0x0000000002D41000-memory.dmp

                            Filesize

                            580KB

                          • memory/920-93-0x0000000000080000-0x000000000008B000-memory.dmp

                            Filesize

                            44KB

                          • memory/920-85-0x0000000074971000-0x0000000074973000-memory.dmp

                            Filesize

                            8KB

                          • memory/920-92-0x0000000000090000-0x0000000000097000-memory.dmp

                            Filesize

                            28KB

                          • memory/1016-76-0x0000000000080000-0x00000000000EB000-memory.dmp

                            Filesize

                            428KB

                          • memory/1016-73-0x0000000074DF1000-0x0000000074DF3000-memory.dmp

                            Filesize

                            8KB

                          • memory/1016-75-0x0000000000220000-0x0000000000294000-memory.dmp

                            Filesize

                            464KB

                          • memory/1032-150-0x0000000000480000-0x0000000000481000-memory.dmp

                            Filesize

                            4KB

                          • memory/1032-148-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/1032-145-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/1220-65-0x0000000002A80000-0x0000000002A97000-memory.dmp

                            Filesize

                            92KB

                          • memory/1220-136-0x0000000002BB0000-0x0000000002BC7000-memory.dmp

                            Filesize

                            92KB

                          • memory/1604-101-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1604-100-0x0000000000090000-0x0000000000095000-memory.dmp

                            Filesize

                            20KB

                          • memory/1720-103-0x0000000000070000-0x0000000000076000-memory.dmp

                            Filesize

                            24KB

                          • memory/1720-104-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1768-63-0x0000000000230000-0x000000000023C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1792-110-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1792-109-0x0000000000090000-0x0000000000094000-memory.dmp

                            Filesize

                            16KB

                          • memory/1800-140-0x0000000000E10000-0x0000000000E11000-memory.dmp

                            Filesize

                            4KB

                          • memory/1800-142-0x00000000003F0000-0x00000000003F1000-memory.dmp

                            Filesize

                            4KB

                          • memory/1800-143-0x0000000000430000-0x0000000000439000-memory.dmp

                            Filesize

                            36KB

                          • memory/1864-95-0x0000000000070000-0x0000000000079000-memory.dmp

                            Filesize

                            36KB

                          • memory/1864-96-0x0000000000060000-0x000000000006F000-memory.dmp

                            Filesize

                            60KB

                          • memory/1964-62-0x0000000075D11000-0x0000000075D13000-memory.dmp

                            Filesize

                            8KB

                          • memory/1964-60-0x0000000000400000-0x000000000040C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1988-119-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1988-118-0x0000000000090000-0x0000000000095000-memory.dmp

                            Filesize

                            20KB

                          • memory/2004-113-0x0000000000070000-0x0000000000075000-memory.dmp

                            Filesize

                            20KB

                          • memory/2004-114-0x0000000000060000-0x0000000000069000-memory.dmp

                            Filesize

                            36KB