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Analysis

  • max time kernel
    1801s
  • max time network
    1570s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (1).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

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 (1).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (1).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (1).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (1).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1760
  • C:\Users\Admin\AppData\Local\Temp\1A25.exe
    C:\Users\Admin\AppData\Local\Temp\1A25.exe
    1⤵
    • Executes dropped EXE
    PID:1536
  • C:\Users\Admin\AppData\Local\Temp\1E3B.exe
    C:\Users\Admin\AppData\Local\Temp\1E3B.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:1196
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\1E3B.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1352
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1932
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:948
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1068
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:896
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:652
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1668
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1316
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1728
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1904
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1704
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {2B698A8B-4FA9-44C8-9CF0-009E90924961} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                      1⤵
                        PID:964
                        • C:\Users\Admin\AppData\Roaming\vhefved
                          C:\Users\Admin\AppData\Roaming\vhefved
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:832
                          • C:\Users\Admin\AppData\Roaming\vhefved
                            C:\Users\Admin\AppData\Roaming\vhefved
                            3⤵
                            • Executes dropped EXE
                            PID:1836
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {1D2CED8C-7003-478E-98DA-C25F597336F5} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:1912
                          • C:\Users\Admin\AppData\Roaming\vhefved
                            C:\Users\Admin\AppData\Roaming\vhefved
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:1996
                            • C:\Users\Admin\AppData\Roaming\vhefved
                              C:\Users\Admin\AppData\Roaming\vhefved
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:1984
                        • C:\Users\Admin\AppData\Local\Temp\6C5C.exe
                          C:\Users\Admin\AppData\Local\Temp\6C5C.exe
                          1⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Suspicious use of SetThreadContext
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1688
                          • C:\Users\Admin\AppData\Local\Temp\6C5C.exe
                            C:\Users\Admin\AppData\Local\Temp\6C5C.exe
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of AdjustPrivilegeToken
                            PID:532
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {0322D6E4-5694-43BD-9869-13690C5C56DC} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:1168
                            • C:\Users\Admin\AppData\Roaming\vhefved
                              C:\Users\Admin\AppData\Roaming\vhefved
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:1392
                              • C:\Users\Admin\AppData\Roaming\vhefved
                                C:\Users\Admin\AppData\Roaming\vhefved
                                3⤵
                                • Executes dropped EXE
                                PID:1840

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/532-144-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/532-147-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/532-149-0x00000000041E0000-0x00000000041E1000-memory.dmp

                            Filesize

                            4KB

                          • memory/652-88-0x0000000000060000-0x000000000006F000-memory.dmp

                            Filesize

                            60KB

                          • memory/652-87-0x0000000000070000-0x0000000000079000-memory.dmp

                            Filesize

                            36KB

                          • memory/896-83-0x00000000742E1000-0x00000000742E3000-memory.dmp

                            Filesize

                            8KB

                          • memory/896-85-0x00000000000C0000-0x00000000000CB000-memory.dmp

                            Filesize

                            44KB

                          • memory/896-84-0x00000000000D0000-0x00000000000D7000-memory.dmp

                            Filesize

                            28KB

                          • memory/948-75-0x00000000003C0000-0x0000000000434000-memory.dmp

                            Filesize

                            464KB

                          • memory/948-73-0x0000000074471000-0x0000000074473000-memory.dmp

                            Filesize

                            8KB

                          • memory/948-76-0x0000000000350000-0x00000000003BB000-memory.dmp

                            Filesize

                            428KB

                          • memory/1068-80-0x00000000000E0000-0x00000000000EC000-memory.dmp

                            Filesize

                            48KB

                          • memory/1068-79-0x00000000000F0000-0x00000000000F7000-memory.dmp

                            Filesize

                            28KB

                          • memory/1288-135-0x00000000021D0000-0x00000000021E7000-memory.dmp

                            Filesize

                            92KB

                          • memory/1288-64-0x0000000002D60000-0x0000000002D77000-memory.dmp

                            Filesize

                            92KB

                          • memory/1316-95-0x0000000000070000-0x0000000000076000-memory.dmp

                            Filesize

                            24KB

                          • memory/1316-96-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1536-74-0x0000000000310000-0x00000000003A1000-memory.dmp

                            Filesize

                            580KB

                          • memory/1536-77-0x0000000000400000-0x0000000002C3C000-memory.dmp

                            Filesize

                            40.2MB

                          • memory/1668-93-0x00000000000C0000-0x00000000000C9000-memory.dmp

                            Filesize

                            36KB

                          • memory/1668-92-0x00000000000D0000-0x00000000000D5000-memory.dmp

                            Filesize

                            20KB

                          • memory/1688-142-0x0000000000330000-0x0000000000339000-memory.dmp

                            Filesize

                            36KB

                          • memory/1688-141-0x0000000000510000-0x0000000000511000-memory.dmp

                            Filesize

                            4KB

                          • memory/1688-139-0x0000000000180000-0x0000000000181000-memory.dmp

                            Filesize

                            4KB

                          • memory/1704-109-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1704-108-0x0000000000090000-0x0000000000095000-memory.dmp

                            Filesize

                            20KB

                          • memory/1728-100-0x0000000000110000-0x0000000000114000-memory.dmp

                            Filesize

                            16KB

                          • memory/1728-101-0x0000000000100000-0x0000000000109000-memory.dmp

                            Filesize

                            36KB

                          • memory/1760-61-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

                            Filesize

                            8KB

                          • memory/1760-59-0x0000000000400000-0x000000000040C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1904-104-0x0000000000060000-0x0000000000069000-memory.dmp

                            Filesize

                            36KB

                          • memory/1904-63-0x0000000000220000-0x000000000022C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1904-103-0x0000000000070000-0x0000000000075000-memory.dmp

                            Filesize

                            20KB