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Analysis

  • max time kernel
    1800s
  • max time network
    1592s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (16).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

1

C2

45.32.235.238:45555

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 6 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 15 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 12 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
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 6 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 12 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (16).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (16).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1644
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (16).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (16).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1240
  • C:\Users\Admin\AppData\Local\Temp\9953.exe
    C:\Users\Admin\AppData\Local\Temp\9953.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:860
  • C:\Users\Admin\AppData\Local\Temp\9ACA.exe
    C:\Users\Admin\AppData\Local\Temp\9ACA.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:568
  • C:\Users\Admin\AppData\Local\Temp\9D79.exe
    C:\Users\Admin\AppData\Local\Temp\9D79.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:540
    • C:\Users\Admin\AppData\Local\Temp\9D79.exe
      C:\Users\Admin\AppData\Local\Temp\9D79.exe
      2⤵
      • Executes dropped EXE
      PID:848
    • C:\Users\Admin\AppData\Local\Temp\9D79.exe
      C:\Users\Admin\AppData\Local\Temp\9D79.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1708
  • C:\Users\Admin\AppData\Local\Temp\A1DE.exe
    C:\Users\Admin\AppData\Local\Temp\A1DE.exe
    1⤵
    • Executes dropped EXE
    PID:920
  • C:\Users\Admin\AppData\Local\Temp\A5F4.exe
    C:\Users\Admin\AppData\Local\Temp\A5F4.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
    PID:628
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\A5F4.exe"
      2⤵
        PID:1532
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          3⤵
          • Delays execution with timeout.exe
          PID:1800
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      1⤵
        PID:924
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe
        1⤵
          PID:896
        • C:\Windows\SysWOW64\explorer.exe
          C:\Windows\SysWOW64\explorer.exe
          1⤵
            PID:2040
          • C:\Windows\explorer.exe
            C:\Windows\explorer.exe
            1⤵
              PID:1876
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              1⤵
                PID:1004
              • C:\Windows\explorer.exe
                C:\Windows\explorer.exe
                1⤵
                  PID:1300
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:824
                  • C:\Windows\explorer.exe
                    C:\Windows\explorer.exe
                    1⤵
                      PID:1328
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:568
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {7377798B-F6BA-423E-9AA7-93C74A6425A0} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:2028
                          • C:\Users\Admin\AppData\Roaming\crchcat
                            C:\Users\Admin\AppData\Roaming\crchcat
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:1468
                            • C:\Users\Admin\AppData\Roaming\crchcat
                              C:\Users\Admin\AppData\Roaming\crchcat
                              3⤵
                              • Executes dropped EXE
                              PID:1396
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {5EC2F088-B186-4D05-B9E1-42D12BC7C4B6} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:1612
                            • C:\Users\Admin\AppData\Roaming\crchcat
                              C:\Users\Admin\AppData\Roaming\crchcat
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:924
                              • C:\Users\Admin\AppData\Roaming\crchcat
                                C:\Users\Admin\AppData\Roaming\crchcat
                                3⤵
                                • Executes dropped EXE
                                • Loads dropped DLL
                                • Checks SCSI registry key(s)
                                • Suspicious behavior: MapViewOfSection
                                PID:960
                          • C:\Users\Admin\AppData\Local\Temp\D2CF.exe
                            C:\Users\Admin\AppData\Local\Temp\D2CF.exe
                            1⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            • Suspicious use of SetThreadContext
                            • Suspicious use of AdjustPrivilegeToken
                            PID:1932
                            • C:\Users\Admin\AppData\Local\Temp\D2CF.exe
                              C:\Users\Admin\AppData\Local\Temp\D2CF.exe
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1488
                          • C:\Windows\system32\taskeng.exe
                            taskeng.exe {9F0F6D50-3A2D-4CE7-A6AD-A6EF2C988DDB} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                            1⤵
                              PID:672
                              • C:\Users\Admin\AppData\Roaming\crchcat
                                C:\Users\Admin\AppData\Roaming\crchcat
                                2⤵
                                • Executes dropped EXE
                                • Suspicious use of SetThreadContext
                                PID:1952
                                • C:\Users\Admin\AppData\Roaming\crchcat
                                  C:\Users\Admin\AppData\Roaming\crchcat
                                  3⤵
                                  • Executes dropped EXE
                                  PID:1072

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • memory/540-81-0x0000000001F30000-0x0000000001F31000-memory.dmp

                              Filesize

                              4KB

                            • memory/540-76-0x0000000000240000-0x0000000000241000-memory.dmp

                              Filesize

                              4KB

                            • memory/568-141-0x00000000000C0000-0x00000000000C9000-memory.dmp

                              Filesize

                              36KB

                            • memory/568-140-0x00000000000D0000-0x00000000000D5000-memory.dmp

                              Filesize

                              20KB

                            • memory/824-130-0x0000000000090000-0x0000000000094000-memory.dmp

                              Filesize

                              16KB

                            • memory/824-131-0x0000000000080000-0x0000000000089000-memory.dmp

                              Filesize

                              36KB

                            • memory/896-98-0x0000000000060000-0x000000000006C000-memory.dmp

                              Filesize

                              48KB

                            • memory/896-97-0x0000000000070000-0x0000000000077000-memory.dmp

                              Filesize

                              28KB

                            • memory/920-89-0x0000000002CB0000-0x0000000002D41000-memory.dmp

                              Filesize

                              580KB

                            • memory/920-92-0x0000000000400000-0x0000000002C3C000-memory.dmp

                              Filesize

                              40.2MB

                            • memory/924-90-0x0000000000130000-0x00000000001A4000-memory.dmp

                              Filesize

                              464KB

                            • memory/924-88-0x0000000071251000-0x0000000071253000-memory.dmp

                              Filesize

                              8KB

                            • memory/924-91-0x00000000000C0000-0x000000000012B000-memory.dmp

                              Filesize

                              428KB

                            • memory/1004-122-0x0000000000080000-0x0000000000089000-memory.dmp

                              Filesize

                              36KB

                            • memory/1004-121-0x00000000000D0000-0x00000000000D5000-memory.dmp

                              Filesize

                              20KB

                            • memory/1200-64-0x0000000002AB0000-0x0000000002AC7000-memory.dmp

                              Filesize

                              92KB

                            • memory/1200-158-0x0000000002960000-0x0000000002977000-memory.dmp

                              Filesize

                              92KB

                            • memory/1240-59-0x0000000000400000-0x000000000040C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1240-61-0x0000000075411000-0x0000000075413000-memory.dmp

                              Filesize

                              8KB

                            • memory/1300-126-0x0000000000060000-0x000000000006C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1300-125-0x0000000000070000-0x0000000000076000-memory.dmp

                              Filesize

                              24KB

                            • memory/1328-134-0x00000000000F0000-0x00000000000F5000-memory.dmp

                              Filesize

                              20KB

                            • memory/1328-135-0x00000000000E0000-0x00000000000E9000-memory.dmp

                              Filesize

                              36KB

                            • memory/1488-167-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1488-170-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1488-172-0x0000000000E10000-0x0000000000E11000-memory.dmp

                              Filesize

                              4KB

                            • memory/1644-63-0x0000000000220000-0x000000000022C000-memory.dmp

                              Filesize

                              48KB

                            • memory/1708-116-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1708-113-0x0000000000400000-0x000000000041E000-memory.dmp

                              Filesize

                              120KB

                            • memory/1708-124-0x0000000004C60000-0x0000000004C61000-memory.dmp

                              Filesize

                              4KB

                            • memory/1876-112-0x00000000000E0000-0x00000000000EF000-memory.dmp

                              Filesize

                              60KB

                            • memory/1876-111-0x00000000000F0000-0x00000000000F9000-memory.dmp

                              Filesize

                              36KB

                            • memory/1932-165-0x0000000000460000-0x0000000000469000-memory.dmp

                              Filesize

                              36KB

                            • memory/1932-164-0x0000000004CE0000-0x0000000004CE1000-memory.dmp

                              Filesize

                              4KB

                            • memory/1932-162-0x0000000001280000-0x0000000001281000-memory.dmp

                              Filesize

                              4KB

                            • memory/2040-101-0x0000000071221000-0x0000000071223000-memory.dmp

                              Filesize

                              8KB

                            • memory/2040-103-0x0000000000080000-0x000000000008B000-memory.dmp

                              Filesize

                              44KB

                            • memory/2040-102-0x0000000000090000-0x0000000000097000-memory.dmp

                              Filesize

                              28KB