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10-07-2021 13:25

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09-07-2021 23:00

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09-07-2021 16:08

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Analysis

  • max time kernel
    1800s
  • max time network
    1829s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    10-07-2021 13:25

General

  • Target

    toolspab2 (12).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

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 4 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 13 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 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (12).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (12).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1164
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (12).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (12).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1308
  • C:\Users\Admin\AppData\Local\Temp\B70F.exe
    C:\Users\Admin\AppData\Local\Temp\B70F.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1460
  • C:\Users\Admin\AppData\Local\Temp\B8A6.exe
    C:\Users\Admin\AppData\Local\Temp\B8A6.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1616
  • C:\Users\Admin\AppData\Local\Temp\BEAF.exe
    C:\Users\Admin\AppData\Local\Temp\BEAF.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:780
    • C:\Users\Admin\AppData\Local\Temp\BEAF.exe
      C:\Users\Admin\AppData\Local\Temp\BEAF.exe
      2⤵
      • Executes dropped EXE
      PID:1580
    • C:\Users\Admin\AppData\Local\Temp\BEAF.exe
      C:\Users\Admin\AppData\Local\Temp\BEAF.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1540
  • C:\Users\Admin\AppData\Local\Temp\C5D2.exe
    C:\Users\Admin\AppData\Local\Temp\C5D2.exe
    1⤵
    • Executes dropped EXE
    PID:1592
  • C:\Users\Admin\AppData\Local\Temp\C95B.exe
    C:\Users\Admin\AppData\Local\Temp\C95B.exe
    1⤵
    • Executes dropped EXE
    PID:912
  • C:\Users\Admin\AppData\Local\Temp\D139.exe
    C:\Users\Admin\AppData\Local\Temp\D139.exe
    1⤵
    • Executes dropped EXE
    PID:920
  • C:\Users\Admin\AppData\Local\Temp\D945.exe
    C:\Users\Admin\AppData\Local\Temp\D945.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:1740
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1720
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1636
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:1520
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:2004
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1572
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1792
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1140
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1408
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:560
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {017863AA-99DA-423A-B8D1-8405C705FB72} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                      1⤵
                        PID:304
                        • C:\Users\Admin\AppData\Roaming\gjdidtw
                          C:\Users\Admin\AppData\Roaming\gjdidtw
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:336
                          • C:\Users\Admin\AppData\Roaming\gjdidtw
                            C:\Users\Admin\AppData\Roaming\gjdidtw
                            3⤵
                            • Executes dropped EXE
                            PID:572
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {B23FE5B4-1B1D-474B-A884-EE170404716C} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:1220
                          • C:\Users\Admin\AppData\Roaming\gjdidtw
                            C:\Users\Admin\AppData\Roaming\gjdidtw
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:992
                            • C:\Users\Admin\AppData\Roaming\gjdidtw
                              C:\Users\Admin\AppData\Roaming\gjdidtw
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:1824

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/560-142-0x0000000000080000-0x0000000000089000-memory.dmp

                          Filesize

                          36KB

                        • memory/560-141-0x0000000000090000-0x0000000000095000-memory.dmp

                          Filesize

                          20KB

                        • memory/780-80-0x0000000004A10000-0x0000000004A11000-memory.dmp

                          Filesize

                          4KB

                        • memory/780-77-0x0000000000370000-0x0000000000371000-memory.dmp

                          Filesize

                          4KB

                        • memory/1140-134-0x0000000000080000-0x0000000000089000-memory.dmp

                          Filesize

                          36KB

                        • memory/1140-133-0x0000000000090000-0x0000000000094000-memory.dmp

                          Filesize

                          16KB

                        • memory/1164-64-0x0000000000220000-0x000000000022C000-memory.dmp

                          Filesize

                          48KB

                        • memory/1264-158-0x0000000002A10000-0x0000000002A27000-memory.dmp

                          Filesize

                          92KB

                        • memory/1264-65-0x0000000002AB0000-0x0000000002AC7000-memory.dmp

                          Filesize

                          92KB

                        • memory/1308-62-0x0000000075551000-0x0000000075553000-memory.dmp

                          Filesize

                          8KB

                        • memory/1308-60-0x0000000000400000-0x000000000040C000-memory.dmp

                          Filesize

                          48KB

                        • memory/1408-137-0x0000000000060000-0x0000000000069000-memory.dmp

                          Filesize

                          36KB

                        • memory/1408-136-0x0000000000070000-0x0000000000075000-memory.dmp

                          Filesize

                          20KB

                        • memory/1520-116-0x0000000071D61000-0x0000000071D63000-memory.dmp

                          Filesize

                          8KB

                        • memory/1520-117-0x00000000000D0000-0x00000000000D7000-memory.dmp

                          Filesize

                          28KB

                        • memory/1520-118-0x0000000000080000-0x000000000008B000-memory.dmp

                          Filesize

                          44KB

                        • memory/1540-99-0x0000000000400000-0x000000000041E000-memory.dmp

                          Filesize

                          120KB

                        • memory/1540-94-0x0000000000400000-0x000000000041E000-memory.dmp

                          Filesize

                          120KB

                        • memory/1540-105-0x0000000004B40000-0x0000000004B41000-memory.dmp

                          Filesize

                          4KB

                        • memory/1572-125-0x0000000000090000-0x0000000000095000-memory.dmp

                          Filesize

                          20KB

                        • memory/1572-126-0x0000000000080000-0x0000000000089000-memory.dmp

                          Filesize

                          36KB

                        • memory/1592-89-0x0000000000400000-0x0000000000492000-memory.dmp

                          Filesize

                          584KB

                        • memory/1592-88-0x00000000004A0000-0x0000000000531000-memory.dmp

                          Filesize

                          580KB

                        • memory/1636-113-0x0000000000060000-0x000000000006C000-memory.dmp

                          Filesize

                          48KB

                        • memory/1636-112-0x0000000000070000-0x0000000000077000-memory.dmp

                          Filesize

                          28KB

                        • memory/1720-111-0x0000000000080000-0x00000000000EB000-memory.dmp

                          Filesize

                          428KB

                        • memory/1720-107-0x0000000073AF1000-0x0000000073AF3000-memory.dmp

                          Filesize

                          8KB

                        • memory/1720-109-0x00000000004D0000-0x0000000000544000-memory.dmp

                          Filesize

                          464KB

                        • memory/1740-102-0x0000000000370000-0x0000000000371000-memory.dmp

                          Filesize

                          4KB

                        • memory/1740-108-0x0000000004D30000-0x0000000004D31000-memory.dmp

                          Filesize

                          4KB

                        • memory/1792-128-0x00000000000F0000-0x00000000000F6000-memory.dmp

                          Filesize

                          24KB

                        • memory/1792-129-0x00000000000E0000-0x00000000000EC000-memory.dmp

                          Filesize

                          48KB

                        • memory/2004-120-0x0000000000070000-0x0000000000079000-memory.dmp

                          Filesize

                          36KB

                        • memory/2004-121-0x0000000000060000-0x000000000006F000-memory.dmp

                          Filesize

                          60KB