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Analysis

  • max time kernel
    1802s
  • max time network
    1539s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    08-07-2021 22:09

General

  • Target

    toolspab2 (18).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

C2

45.93.4.12:80

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.

  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • 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.

  • 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.

  • 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 9 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 (18).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (18).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1076
  • C:\Users\Admin\AppData\Local\Temp\EE64.exe
    C:\Users\Admin\AppData\Local\Temp\EE64.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:572
  • C:\Users\Admin\AppData\Local\Temp\F0A7.exe
    C:\Users\Admin\AppData\Local\Temp\F0A7.exe
    1⤵
    • Executes dropped EXE
    PID:596
  • C:\Users\Admin\AppData\Local\Temp\F8C2.exe
    C:\Users\Admin\AppData\Local\Temp\F8C2.exe
    1⤵
    • Executes dropped EXE
    PID:1684
  • C:\Users\Admin\AppData\Local\Temp\226.exe
    C:\Users\Admin\AppData\Local\Temp\226.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Users\Admin\AppData\Local\Temp\226.exe
      C:\Users\Admin\AppData\Local\Temp\226.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:568
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1452
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:276
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:1612
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1932
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:824
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1680
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1248
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1728
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1972
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {D41EDE60-FF85-4C6A-ADF9-6DB31B8EFBD2} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                      1⤵
                        PID:1204
                        • C:\Users\Admin\AppData\Roaming\cfsrirh
                          C:\Users\Admin\AppData\Roaming\cfsrirh
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:1664
                          • C:\Users\Admin\AppData\Roaming\cfsrirh
                            C:\Users\Admin\AppData\Roaming\cfsrirh
                            3⤵
                            • Executes dropped EXE
                            PID:384
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {DE452F4B-7ECD-452F-AAAA-5FCD2FE12CAD} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:276
                          • C:\Users\Admin\AppData\Roaming\cfsrirh
                            C:\Users\Admin\AppData\Roaming\cfsrirh
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:436
                            • C:\Users\Admin\AppData\Roaming\cfsrirh
                              C:\Users\Admin\AppData\Roaming\cfsrirh
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:1608
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {64DDB69E-4417-4DF8-9D4A-AB119129A7AB} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:1648
                            • C:\Users\Admin\AppData\Roaming\cfsrirh
                              C:\Users\Admin\AppData\Roaming\cfsrirh
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:1800
                              • C:\Users\Admin\AppData\Roaming\cfsrirh
                                C:\Users\Admin\AppData\Roaming\cfsrirh
                                3⤵
                                • Executes dropped EXE
                                PID:1472

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/276-92-0x0000000000070000-0x0000000000077000-memory.dmp

                            Filesize

                            28KB

                          • memory/276-93-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/568-104-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/568-101-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/568-119-0x0000000004CF0000-0x0000000004CF1000-memory.dmp

                            Filesize

                            4KB

                          • memory/596-84-0x0000000000510000-0x00000000005A1000-memory.dmp

                            Filesize

                            580KB

                          • memory/596-88-0x0000000000400000-0x00000000004A0000-memory.dmp

                            Filesize

                            640KB

                          • memory/824-120-0x00000000000D0000-0x00000000000D5000-memory.dmp

                            Filesize

                            20KB

                          • memory/824-121-0x00000000000C0000-0x00000000000C9000-memory.dmp

                            Filesize

                            36KB

                          • memory/1076-60-0x0000000000400000-0x000000000040C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1076-62-0x00000000765F1000-0x00000000765F3000-memory.dmp

                            Filesize

                            8KB

                          • memory/1248-130-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1248-129-0x0000000000090000-0x0000000000094000-memory.dmp

                            Filesize

                            16KB

                          • memory/1256-158-0x0000000002760000-0x0000000002777000-memory.dmp

                            Filesize

                            92KB

                          • memory/1256-66-0x0000000002210000-0x0000000002227000-memory.dmp

                            Filesize

                            92KB

                          • memory/1452-82-0x0000000075091000-0x0000000075093000-memory.dmp

                            Filesize

                            8KB

                          • memory/1452-91-0x0000000000080000-0x00000000000EB000-memory.dmp

                            Filesize

                            428KB

                          • memory/1452-89-0x00000000000F0000-0x0000000000164000-memory.dmp

                            Filesize

                            464KB

                          • memory/1516-76-0x00000000001F0000-0x00000000001F1000-memory.dmp

                            Filesize

                            4KB

                          • memory/1516-83-0x0000000004C80000-0x0000000004C81000-memory.dmp

                            Filesize

                            4KB

                          • memory/1612-98-0x00000000000D0000-0x00000000000D7000-memory.dmp

                            Filesize

                            28KB

                          • memory/1612-100-0x00000000000C0000-0x00000000000CB000-memory.dmp

                            Filesize

                            44KB

                          • memory/1612-96-0x0000000071831000-0x0000000071833000-memory.dmp

                            Filesize

                            8KB

                          • memory/1680-125-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1680-124-0x0000000000070000-0x0000000000076000-memory.dmp

                            Filesize

                            24KB

                          • memory/1728-133-0x0000000000060000-0x0000000000069000-memory.dmp

                            Filesize

                            36KB

                          • memory/1728-132-0x0000000000070000-0x0000000000075000-memory.dmp

                            Filesize

                            20KB

                          • memory/1932-111-0x0000000000070000-0x0000000000079000-memory.dmp

                            Filesize

                            36KB

                          • memory/1932-113-0x0000000000060000-0x000000000006F000-memory.dmp

                            Filesize

                            60KB

                          • memory/1972-137-0x0000000000090000-0x0000000000095000-memory.dmp

                            Filesize

                            20KB

                          • memory/1972-138-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/2004-64-0x0000000000220000-0x000000000022C000-memory.dmp

                            Filesize

                            48KB