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Analysis

  • max time kernel
    1801s
  • max time network
    1713s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (17).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 (17).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (17).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1088
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (17).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (17).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1460
  • C:\Users\Admin\AppData\Local\Temp\79B2.exe
    C:\Users\Admin\AppData\Local\Temp\79B2.exe
    1⤵
    • Executes dropped EXE
    PID:756
  • C:\Users\Admin\AppData\Local\Temp\7EA3.exe
    C:\Users\Admin\AppData\Local\Temp\7EA3.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:892
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\7EA3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1532
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1556
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:968
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:872
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:1732
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1204
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:832
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:2020
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:896
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1476
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:1808
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {6497BB1A-659D-4271-9858-5DA2293E99ED} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                      1⤵
                        PID:328
                        • C:\Users\Admin\AppData\Roaming\chshssb
                          C:\Users\Admin\AppData\Roaming\chshssb
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:808
                          • C:\Users\Admin\AppData\Roaming\chshssb
                            C:\Users\Admin\AppData\Roaming\chshssb
                            3⤵
                            • Executes dropped EXE
                            PID:1584
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {5B994CC1-3F09-406C-84E7-306864C26407} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:1164
                          • C:\Users\Admin\AppData\Roaming\chshssb
                            C:\Users\Admin\AppData\Roaming\chshssb
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:1836
                            • C:\Users\Admin\AppData\Roaming\chshssb
                              C:\Users\Admin\AppData\Roaming\chshssb
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:776
                        • C:\Users\Admin\AppData\Local\Temp\BDB6.exe
                          C:\Users\Admin\AppData\Local\Temp\BDB6.exe
                          1⤵
                          • Executes dropped EXE
                          • Loads dropped DLL
                          • Suspicious use of SetThreadContext
                          • Suspicious use of AdjustPrivilegeToken
                          PID:852
                          • C:\Users\Admin\AppData\Local\Temp\BDB6.exe
                            C:\Users\Admin\AppData\Local\Temp\BDB6.exe
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of AdjustPrivilegeToken
                            PID:944
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {51A26A69-2085-40B9-8035-5C5BB3940838} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:1396
                            • C:\Users\Admin\AppData\Roaming\chshssb
                              C:\Users\Admin\AppData\Roaming\chshssb
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:1988
                              • C:\Users\Admin\AppData\Roaming\chshssb
                                C:\Users\Admin\AppData\Roaming\chshssb
                                3⤵
                                • Executes dropped EXE
                                PID:816

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/756-73-0x0000000000330000-0x00000000003C1000-memory.dmp

                            Filesize

                            580KB

                          • memory/756-81-0x0000000000400000-0x0000000002C3C000-memory.dmp

                            Filesize

                            40.2MB

                          • memory/832-100-0x00000000000D0000-0x00000000000D5000-memory.dmp

                            Filesize

                            20KB

                          • memory/832-101-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/852-142-0x0000000001E40000-0x0000000001E41000-memory.dmp

                            Filesize

                            4KB

                          • memory/852-143-0x00000000003D0000-0x00000000003D9000-memory.dmp

                            Filesize

                            36KB

                          • memory/852-140-0x00000000002C0000-0x00000000002C1000-memory.dmp

                            Filesize

                            4KB

                          • memory/872-79-0x0000000000070000-0x0000000000077000-memory.dmp

                            Filesize

                            28KB

                          • memory/872-82-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/896-108-0x0000000000090000-0x0000000000094000-memory.dmp

                            Filesize

                            16KB

                          • memory/896-109-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/944-150-0x0000000002290000-0x0000000002291000-memory.dmp

                            Filesize

                            4KB

                          • memory/944-148-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/944-145-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/968-80-0x0000000000110000-0x000000000017B000-memory.dmp

                            Filesize

                            428KB

                          • memory/968-75-0x00000000748C1000-0x00000000748C3000-memory.dmp

                            Filesize

                            8KB

                          • memory/968-78-0x0000000000180000-0x00000000001F4000-memory.dmp

                            Filesize

                            464KB

                          • memory/1088-64-0x0000000000220000-0x000000000022C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1204-96-0x0000000000060000-0x000000000006F000-memory.dmp

                            Filesize

                            60KB

                          • memory/1204-95-0x0000000000070000-0x0000000000079000-memory.dmp

                            Filesize

                            36KB

                          • memory/1264-136-0x0000000002BB0000-0x0000000002BC7000-memory.dmp

                            Filesize

                            92KB

                          • memory/1264-65-0x0000000002A50000-0x0000000002A67000-memory.dmp

                            Filesize

                            92KB

                          • memory/1460-60-0x0000000000400000-0x000000000040C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1460-62-0x00000000753B1000-0x00000000753B3000-memory.dmp

                            Filesize

                            8KB

                          • memory/1476-111-0x0000000000070000-0x0000000000075000-memory.dmp

                            Filesize

                            20KB

                          • memory/1476-112-0x0000000000060000-0x0000000000069000-memory.dmp

                            Filesize

                            36KB

                          • memory/1732-86-0x0000000000090000-0x0000000000097000-memory.dmp

                            Filesize

                            28KB

                          • memory/1732-85-0x0000000074391000-0x0000000074393000-memory.dmp

                            Filesize

                            8KB

                          • memory/1732-87-0x0000000000080000-0x000000000008B000-memory.dmp

                            Filesize

                            44KB

                          • memory/1808-119-0x0000000000100000-0x0000000000109000-memory.dmp

                            Filesize

                            36KB

                          • memory/1808-118-0x0000000000110000-0x0000000000115000-memory.dmp

                            Filesize

                            20KB

                          • memory/2020-104-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/2020-103-0x0000000000070000-0x0000000000076000-memory.dmp

                            Filesize

                            24KB