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Analysis

  • max time kernel
    1801s
  • max time network
    1301s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    08-07-2021 22:09

General

  • Target

    toolspab2 (14).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

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 5 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 16 IoCs
  • 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.

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe
    "C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe
      "C:\Users\Admin\AppData\Local\Temp\toolspab2 (14).exe"
      2⤵
      • Loads dropped DLL
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2740
  • C:\Users\Admin\AppData\Local\Temp\931E.exe
    C:\Users\Admin\AppData\Local\Temp\931E.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:416
  • C:\Users\Admin\AppData\Local\Temp\9486.exe
    C:\Users\Admin\AppData\Local\Temp\9486.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:4036
  • C:\Users\Admin\AppData\Local\Temp\EA58.exe
    C:\Users\Admin\AppData\Local\Temp\EA58.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2288
    • C:\Users\Admin\AppData\Local\Temp\EA58.exe
      C:\Users\Admin\AppData\Local\Temp\EA58.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:768
  • C:\Users\Admin\AppData\Local\Temp\EE9F.exe
    C:\Users\Admin\AppData\Local\Temp\EE9F.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:2676
  • C:\Users\Admin\AppData\Local\Temp\F0D2.exe
    C:\Users\Admin\AppData\Local\Temp\F0D2.exe
    1⤵
    • Executes dropped EXE
    PID:3304
  • C:\Users\Admin\AppData\Local\Temp\F865.exe
    C:\Users\Admin\AppData\Local\Temp\F865.exe
    1⤵
    • Executes dropped EXE
    PID:3176
  • C:\Users\Admin\AppData\Local\Temp\FE13.exe
    C:\Users\Admin\AppData\Local\Temp\FE13.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Users\Admin\AppData\Local\Temp\FE13.exe
      C:\Users\Admin\AppData\Local\Temp\FE13.exe
      2⤵
      • Executes dropped EXE
      PID:504
    • C:\Users\Admin\AppData\Local\Temp\FE13.exe
      C:\Users\Admin\AppData\Local\Temp\FE13.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4036
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:1100
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1464
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:2280
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:4080
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:3916
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:3252
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:2204
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:3648
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:2528
                    • C:\Users\Admin\AppData\Roaming\aicuwff
                      C:\Users\Admin\AppData\Roaming\aicuwff
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:2848
                      • C:\Users\Admin\AppData\Roaming\aicuwff
                        C:\Users\Admin\AppData\Roaming\aicuwff
                        2⤵
                        • Executes dropped EXE
                        PID:1104
                    • C:\Users\Admin\AppData\Roaming\aicuwff
                      C:\Users\Admin\AppData\Roaming\aicuwff
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:60
                      • C:\Users\Admin\AppData\Roaming\aicuwff
                        C:\Users\Admin\AppData\Roaming\aicuwff
                        2⤵
                        • Executes dropped EXE
                        • Loads dropped DLL
                        • Checks SCSI registry key(s)
                        • Suspicious behavior: MapViewOfSection
                        PID:768
                    • C:\Users\Admin\AppData\Roaming\aicuwff
                      C:\Users\Admin\AppData\Roaming\aicuwff
                      1⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      PID:2240
                      • C:\Users\Admin\AppData\Roaming\aicuwff
                        C:\Users\Admin\AppData\Roaming\aicuwff
                        2⤵
                        • Executes dropped EXE
                        PID:3152

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • memory/740-117-0x0000000000460000-0x000000000050E000-memory.dmp

                      Filesize

                      696KB

                    • memory/768-154-0x0000000005460000-0x0000000005461000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-159-0x0000000005790000-0x0000000005791000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-161-0x00000000053E0000-0x00000000059E6000-memory.dmp

                      Filesize

                      6.0MB

                    • memory/768-155-0x00000000054C0000-0x00000000054C1000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-210-0x0000000007B10000-0x0000000007B11000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-189-0x0000000006BB0000-0x0000000006BB1000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-153-0x00000000059F0000-0x00000000059F1000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-147-0x0000000000400000-0x000000000041E000-memory.dmp

                      Filesize

                      120KB

                    • memory/768-156-0x0000000005500000-0x0000000005501000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-211-0x0000000006E20000-0x0000000006E21000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-187-0x00000000069E0000-0x00000000069E1000-memory.dmp

                      Filesize

                      4KB

                    • memory/768-188-0x00000000070E0000-0x00000000070E1000-memory.dmp

                      Filesize

                      4KB

                    • memory/800-163-0x0000000000BB0000-0x0000000000BB1000-memory.dmp

                      Filesize

                      4KB

                    • memory/800-172-0x0000000005660000-0x0000000005661000-memory.dmp

                      Filesize

                      4KB

                    • memory/1100-169-0x0000000003040000-0x00000000030AB000-memory.dmp

                      Filesize

                      428KB

                    • memory/1100-168-0x00000000030B0000-0x0000000003124000-memory.dmp

                      Filesize

                      464KB

                    • memory/1464-170-0x0000000001220000-0x0000000001227000-memory.dmp

                      Filesize

                      28KB

                    • memory/1464-171-0x0000000001210000-0x000000000121C000-memory.dmp

                      Filesize

                      48KB

                    • memory/2204-206-0x00000000001F0000-0x00000000001F9000-memory.dmp

                      Filesize

                      36KB

                    • memory/2204-205-0x0000000000400000-0x0000000000404000-memory.dmp

                      Filesize

                      16KB

                    • memory/2240-249-0x0000000000460000-0x00000000005AA000-memory.dmp

                      Filesize

                      1.3MB

                    • memory/2280-174-0x0000000003260000-0x0000000003267000-memory.dmp

                      Filesize

                      28KB

                    • memory/2280-175-0x0000000003250000-0x000000000325B000-memory.dmp

                      Filesize

                      44KB

                    • memory/2288-136-0x0000000004D80000-0x0000000004D81000-memory.dmp

                      Filesize

                      4KB

                    • memory/2288-135-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

                      Filesize

                      4KB

                    • memory/2288-133-0x00000000005B0000-0x00000000005B1000-memory.dmp

                      Filesize

                      4KB

                    • memory/2288-140-0x0000000004FB0000-0x0000000004FB1000-memory.dmp

                      Filesize

                      4KB

                    • memory/2528-216-0x0000000000870000-0x0000000000875000-memory.dmp

                      Filesize

                      20KB

                    • memory/2528-217-0x0000000000860000-0x0000000000869000-memory.dmp

                      Filesize

                      36KB

                    • memory/2676-178-0x0000000000400000-0x00000000004A0000-memory.dmp

                      Filesize

                      640KB

                    • memory/2676-177-0x00000000005D0000-0x000000000071A000-memory.dmp

                      Filesize

                      1.3MB

                    • memory/2740-114-0x0000000000400000-0x000000000040C000-memory.dmp

                      Filesize

                      48KB

                    • memory/2848-234-0x0000000000580000-0x000000000058C000-memory.dmp

                      Filesize

                      48KB

                    • memory/3048-119-0x00000000011F0000-0x0000000001207000-memory.dmp

                      Filesize

                      92KB

                    • memory/3048-243-0x0000000001240000-0x0000000001257000-memory.dmp

                      Filesize

                      92KB

                    • memory/3252-192-0x0000000000DC0000-0x0000000000DCC000-memory.dmp

                      Filesize

                      48KB

                    • memory/3252-191-0x0000000000DD0000-0x0000000000DD6000-memory.dmp

                      Filesize

                      24KB

                    • memory/3304-181-0x00000000020A0000-0x0000000002131000-memory.dmp

                      Filesize

                      580KB

                    • memory/3648-213-0x00000000009A0000-0x00000000009A5000-memory.dmp

                      Filesize

                      20KB

                    • memory/3648-214-0x0000000000990000-0x0000000000999000-memory.dmp

                      Filesize

                      36KB

                    • memory/3916-186-0x00000000006B0000-0x00000000006B9000-memory.dmp

                      Filesize

                      36KB

                    • memory/3916-185-0x00000000006C0000-0x00000000006C5000-memory.dmp

                      Filesize

                      20KB

                    • memory/4036-195-0x0000000000400000-0x000000000041E000-memory.dmp

                      Filesize

                      120KB

                    • memory/4036-212-0x0000000005840000-0x0000000005E46000-memory.dmp

                      Filesize

                      6.0MB

                    • memory/4080-180-0x0000000000FD0000-0x0000000000FDF000-memory.dmp

                      Filesize

                      60KB

                    • memory/4080-179-0x0000000000FE0000-0x0000000000FE9000-memory.dmp

                      Filesize

                      36KB