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Analysis

  • max time kernel
    1802s
  • max time network
    1561s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    08-07-2021 22:09

General

  • Target

    toolspab2 (22).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

1

C2

45.32.235.238:45555

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 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 11 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 6 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 13 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 (22).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (22).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1256
  • C:\Users\Admin\AppData\Local\Temp\ED2C.exe
    C:\Users\Admin\AppData\Local\Temp\ED2C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:320
  • C:\Users\Admin\AppData\Local\Temp\EF30.exe
    C:\Users\Admin\AppData\Local\Temp\EF30.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:860
  • C:\Users\Admin\AppData\Local\Temp\4636.exe
    C:\Users\Admin\AppData\Local\Temp\4636.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:812
    • C:\Users\Admin\AppData\Local\Temp\4636.exe
      C:\Users\Admin\AppData\Local\Temp\4636.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1764
  • C:\Users\Admin\AppData\Local\Temp\4B17.exe
    C:\Users\Admin\AppData\Local\Temp\4B17.exe
    1⤵
    • Executes dropped EXE
    PID:548
  • C:\Users\Admin\AppData\Local\Temp\4D78.exe
    C:\Users\Admin\AppData\Local\Temp\4D78.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:1448
  • C:\Users\Admin\AppData\Local\Temp\5739.exe
    C:\Users\Admin\AppData\Local\Temp\5739.exe
    1⤵
    • Executes dropped EXE
    PID:1536
  • C:\Users\Admin\AppData\Local\Temp\64E1.exe
    C:\Users\Admin\AppData\Local\Temp\64E1.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1584
    • C:\Users\Admin\AppData\Local\Temp\64E1.exe
      C:\Users\Admin\AppData\Local\Temp\64E1.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:336
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1328
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1572
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:760
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:776
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:1456
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:912
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:1004
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:2036
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:532
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {D370D39E-B029-4426-B8A8-E9F348098F6C} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                      1⤵
                        PID:1584
                        • C:\Users\Admin\AppData\Roaming\bgeaefd
                          C:\Users\Admin\AppData\Roaming\bgeaefd
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of SetThreadContext
                          PID:524
                          • C:\Users\Admin\AppData\Roaming\bgeaefd
                            C:\Users\Admin\AppData\Roaming\bgeaefd
                            3⤵
                            • Executes dropped EXE
                            PID:320
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {B6FC8843-B667-41FF-BB48-FB8C2BFEC976} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                        1⤵
                          PID:788
                          • C:\Users\Admin\AppData\Roaming\bgeaefd
                            C:\Users\Admin\AppData\Roaming\bgeaefd
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            PID:964
                            • C:\Users\Admin\AppData\Roaming\bgeaefd
                              C:\Users\Admin\AppData\Roaming\bgeaefd
                              3⤵
                              • Executes dropped EXE
                              • Loads dropped DLL
                              • Checks SCSI registry key(s)
                              • Suspicious behavior: MapViewOfSection
                              PID:1428
                        • C:\Windows\system32\taskeng.exe
                          taskeng.exe {1D7B91B5-B22D-4D1C-ACD8-2E6CC180811B} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
                          1⤵
                            PID:1084
                            • C:\Users\Admin\AppData\Roaming\bgeaefd
                              C:\Users\Admin\AppData\Roaming\bgeaefd
                              2⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:1552
                              • C:\Users\Admin\AppData\Roaming\bgeaefd
                                C:\Users\Admin\AppData\Roaming\bgeaefd
                                3⤵
                                • Executes dropped EXE
                                PID:1228

                          Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • memory/336-131-0x00000000003A0000-0x00000000003A1000-memory.dmp

                            Filesize

                            4KB

                          • memory/336-127-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/336-124-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/532-158-0x0000000000110000-0x0000000000115000-memory.dmp

                            Filesize

                            20KB

                          • memory/532-159-0x0000000000100000-0x0000000000109000-memory.dmp

                            Filesize

                            36KB

                          • memory/548-105-0x0000000001CD0000-0x0000000001D61000-memory.dmp

                            Filesize

                            580KB

                          • memory/760-122-0x00000000000D0000-0x00000000000D7000-memory.dmp

                            Filesize

                            28KB

                          • memory/760-123-0x0000000000080000-0x000000000008B000-memory.dmp

                            Filesize

                            44KB

                          • memory/760-120-0x000000006F3E1000-0x000000006F3E3000-memory.dmp

                            Filesize

                            8KB

                          • memory/776-134-0x00000000000E0000-0x00000000000EF000-memory.dmp

                            Filesize

                            60KB

                          • memory/776-132-0x00000000000F0000-0x00000000000F9000-memory.dmp

                            Filesize

                            36KB

                          • memory/788-64-0x00000000003A0000-0x00000000003AC000-memory.dmp

                            Filesize

                            48KB

                          • memory/812-81-0x0000000004B30000-0x0000000004B31000-memory.dmp

                            Filesize

                            4KB

                          • memory/812-78-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

                            Filesize

                            4KB

                          • memory/912-145-0x0000000000070000-0x0000000000076000-memory.dmp

                            Filesize

                            24KB

                          • memory/912-146-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1004-151-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1004-150-0x0000000000090000-0x0000000000094000-memory.dmp

                            Filesize

                            16KB

                          • memory/1256-62-0x0000000075551000-0x0000000075553000-memory.dmp

                            Filesize

                            8KB

                          • memory/1256-60-0x0000000000400000-0x000000000040C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1264-66-0x0000000002F10000-0x0000000002F27000-memory.dmp

                            Filesize

                            92KB

                          • memory/1264-179-0x00000000029E0000-0x00000000029F7000-memory.dmp

                            Filesize

                            92KB

                          • memory/1328-104-0x000000006F4D1000-0x000000006F4D3000-memory.dmp

                            Filesize

                            8KB

                          • memory/1328-109-0x0000000000140000-0x00000000001B4000-memory.dmp

                            Filesize

                            464KB

                          • memory/1328-110-0x00000000000D0000-0x000000000013B000-memory.dmp

                            Filesize

                            428KB

                          • memory/1448-108-0x0000000000400000-0x00000000004A0000-memory.dmp

                            Filesize

                            640KB

                          • memory/1456-142-0x0000000000090000-0x0000000000095000-memory.dmp

                            Filesize

                            20KB

                          • memory/1456-143-0x0000000000080000-0x0000000000089000-memory.dmp

                            Filesize

                            36KB

                          • memory/1572-114-0x0000000000070000-0x0000000000077000-memory.dmp

                            Filesize

                            28KB

                          • memory/1572-115-0x0000000000060000-0x000000000006C000-memory.dmp

                            Filesize

                            48KB

                          • memory/1584-98-0x0000000000C70000-0x0000000000C71000-memory.dmp

                            Filesize

                            4KB

                          • memory/1584-106-0x0000000002250000-0x0000000002251000-memory.dmp

                            Filesize

                            4KB

                          • memory/1764-93-0x0000000004DF0000-0x0000000004DF1000-memory.dmp

                            Filesize

                            4KB

                          • memory/1764-89-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/1764-86-0x0000000000400000-0x000000000041E000-memory.dmp

                            Filesize

                            120KB

                          • memory/2036-153-0x0000000000070000-0x0000000000075000-memory.dmp

                            Filesize

                            20KB

                          • memory/2036-154-0x0000000000060000-0x0000000000069000-memory.dmp

                            Filesize

                            36KB