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Analysis

  • max time kernel
    1802s
  • max time network
    1303s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    12-07-2021 16:55

General

  • Target

    toolspab2 (11).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

  • 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 2 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 7 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 49 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2252
  • C:\Users\Admin\AppData\Local\Temp\67B4.exe
    C:\Users\Admin\AppData\Local\Temp\67B4.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1020
  • C:\Users\Admin\AppData\Local\Temp\690C.exe
    C:\Users\Admin\AppData\Local\Temp\690C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1156
  • C:\Users\Admin\AppData\Local\Temp\6B6F.exe
    C:\Users\Admin\AppData\Local\Temp\6B6F.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1112
    • C:\Users\Admin\AppData\Local\Temp\6B6F.exe
      C:\Users\Admin\AppData\Local\Temp\6B6F.exe
      2⤵
      • Executes dropped EXE
      PID:2204
    • C:\Users\Admin\AppData\Local\Temp\6B6F.exe
      C:\Users\Admin\AppData\Local\Temp\6B6F.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3160
  • C:\Users\Admin\AppData\Local\Temp\6F19.exe
    C:\Users\Admin\AppData\Local\Temp\6F19.exe
    1⤵
    • Executes dropped EXE
    PID:2156
  • C:\Users\Admin\AppData\Local\Temp\7302.exe
    C:\Users\Admin\AppData\Local\Temp\7302.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:3964
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\7302.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3136
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:2236
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:3480
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:3972
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:1004
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1332
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3768
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1944
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:2120
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:3084
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:3848
                    • C:\Users\Admin\AppData\Roaming\dgccwbu
                      C:\Users\Admin\AppData\Roaming\dgccwbu
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:3380
                      • C:\Users\Admin\AppData\Roaming\dgccwbu
                        C:\Users\Admin\AppData\Roaming\dgccwbu
                        2⤵
                        • Executes dropped EXE
                        PID:3584
                    • C:\Users\Admin\AppData\Roaming\dgccwbu
                      C:\Users\Admin\AppData\Roaming\dgccwbu
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:1920
                      • C:\Users\Admin\AppData\Roaming\dgccwbu
                        C:\Users\Admin\AppData\Roaming\dgccwbu
                        2⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        • Checks SCSI registry key(s)
                        • Suspicious behavior: MapViewOfSection
                        PID:4008
                    • C:\Users\Admin\AppData\Roaming\dgccwbu
                      C:\Users\Admin\AppData\Roaming\dgccwbu
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:2236
                      • C:\Users\Admin\AppData\Roaming\dgccwbu
                        C:\Users\Admin\AppData\Roaming\dgccwbu
                        2⤵
                        • Executes dropped EXE
                        PID:3556

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • memory/632-114-0x0000000000500000-0x000000000064A000-memory.dmp

                      Filesize

                      1.3MB

                    • memory/1004-157-0x0000000000DB0000-0x0000000000DBB000-memory.dmp

                      Filesize

                      44KB

                    • memory/1004-156-0x0000000000DC0000-0x0000000000DC7000-memory.dmp

                      Filesize

                      28KB

                    • memory/1112-132-0x0000000000460000-0x0000000000461000-memory.dmp

                      Filesize

                      4KB

                    • memory/1112-135-0x0000000002920000-0x0000000002921000-memory.dmp

                      Filesize

                      4KB

                    • memory/1112-134-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

                      Filesize

                      4KB

                    • memory/1112-139-0x0000000004F10000-0x0000000004F11000-memory.dmp

                      Filesize

                      4KB

                    • memory/1332-163-0x00000000001E0000-0x00000000001E9000-memory.dmp

                      Filesize

                      36KB

                    • memory/1332-164-0x00000000001D0000-0x00000000001DF000-memory.dmp

                      Filesize

                      60KB

                    • memory/1920-211-0x0000000000460000-0x00000000005AA000-memory.dmp

                      Filesize

                      1.3MB

                    • memory/1944-184-0x00000000009C0000-0x00000000009CC000-memory.dmp

                      Filesize

                      48KB

                    • memory/1944-183-0x00000000009D0000-0x00000000009D6000-memory.dmp

                      Filesize

                      24KB

                    • memory/2120-186-0x0000000000A20000-0x0000000000A24000-memory.dmp

                      Filesize

                      16KB

                    • memory/2120-187-0x0000000000A10000-0x0000000000A19000-memory.dmp

                      Filesize

                      36KB

                    • memory/2156-152-0x0000000000400000-0x0000000002C3C000-memory.dmp

                      Filesize

                      40.2MB

                    • memory/2156-148-0x0000000002F00000-0x0000000002F91000-memory.dmp

                      Filesize

                      580KB

                    • memory/2252-115-0x0000000000400000-0x000000000040C000-memory.dmp

                      Filesize

                      48KB

                    • memory/2428-118-0x0000000000440000-0x0000000000457000-memory.dmp

                      Filesize

                      92KB

                    • memory/2428-212-0x00000000004B0000-0x00000000004C7000-memory.dmp

                      Filesize

                      92KB

                    • memory/3084-189-0x0000000000720000-0x0000000000725000-memory.dmp

                      Filesize

                      20KB

                    • memory/3084-190-0x0000000000710000-0x0000000000719000-memory.dmp

                      Filesize

                      36KB

                    • memory/3160-196-0x0000000006DD0000-0x0000000006DD1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-194-0x0000000006C00000-0x0000000006C01000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-165-0x0000000000400000-0x000000000041E000-memory.dmp

                      Filesize

                      120KB

                    • memory/3160-174-0x00000000056E0000-0x00000000056E1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-177-0x0000000005720000-0x0000000005721000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-171-0x0000000005BE0000-0x0000000005BE1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-172-0x0000000005680000-0x0000000005681000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-182-0x00000000055D0000-0x0000000005BD6000-memory.dmp

                      Filesize

                      6.0MB

                    • memory/3160-197-0x00000000070E0000-0x00000000070E1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-198-0x0000000007D30000-0x0000000007D31000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-181-0x00000000059F0000-0x00000000059F1000-memory.dmp

                      Filesize

                      4KB

                    • memory/3160-195-0x0000000007300000-0x0000000007301000-memory.dmp

                      Filesize

                      4KB

                    • memory/3380-205-0x0000000000580000-0x000000000058C000-memory.dmp

                      Filesize

                      48KB

                    • memory/3480-147-0x00000000032D0000-0x000000000333B000-memory.dmp

                      Filesize

                      428KB

                    • memory/3480-146-0x0000000003340000-0x00000000033B4000-memory.dmp

                      Filesize

                      464KB

                    • memory/3768-175-0x0000000000510000-0x0000000000515000-memory.dmp

                      Filesize

                      20KB

                    • memory/3768-176-0x0000000000500000-0x0000000000509000-memory.dmp

                      Filesize

                      36KB

                    • memory/3848-193-0x0000000000510000-0x0000000000519000-memory.dmp

                      Filesize

                      36KB

                    • memory/3848-192-0x0000000000520000-0x0000000000525000-memory.dmp

                      Filesize

                      20KB

                    • memory/3964-145-0x00000000779F0000-0x0000000077B7E000-memory.dmp

                      Filesize

                      1.6MB

                    • memory/3964-143-0x0000000001160000-0x0000000001554000-memory.dmp

                      Filesize

                      4.0MB

                    • memory/3972-153-0x0000000000B70000-0x0000000000B77000-memory.dmp

                      Filesize

                      28KB

                    • memory/3972-154-0x0000000000B60000-0x0000000000B6C000-memory.dmp

                      Filesize

                      48KB