Analysis

  • max time kernel
    4265104s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15/01/2022, 04:19

General

  • Target

    4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c.exe

  • Size

    319KB

  • MD5

    8f18b3951ebf449691a64b31cdb19f3e

  • SHA1

    299884e381f8d243430b00732de3d6374a8cb245

  • SHA256

    4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c

  • SHA512

    26e979d335d72954550915efe62fad1d07a0981ec4f9502ed81115cefaf329fb5bfd161cf4f5e634dc389fb77f1a186c7827f3bd2c8ac167821f6fd266570b89

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://host-data-coin-11.com/

http://file-coin-host-12.com/

http://srtuiyhuali.at/

http://fufuiloirtu.com/

http://amogohuigotuli.at/

http://novohudosovu.com/

http://brutuilionust.com/

http://bubushkalioua.com/

http://dumuilistrati.at/

http://verboliatsiaeeees.com/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

arkei

Botnet

Default

C2

http://file-file-host4.com/tratata.php

Extracted

Family

tofsee

C2

patmushta.info

parubey.info

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

    suricata: ET MALWARE Sharik/Smoke CnC Beacon 11

  • Arkei Stealer Payload 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 6 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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

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

  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c.exe
    "C:\Users\Admin\AppData\Local\Temp\4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c.exe
      "C:\Users\Admin\AppData\Local\Temp\4fd9309f1c39c28d69415f834c167a3fc943f1abf428e7c131f1b2f16bbb536c.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1940
  • C:\Windows\system32\MusNotification.exe
    C:\Windows\system32\MusNotification.exe
    1⤵
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:776
  • C:\Users\Admin\AppData\Local\Temp\7472.exe
    C:\Users\Admin\AppData\Local\Temp\7472.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:4012
  • C:\Users\Admin\AppData\Local\Temp\7A8D.exe
    C:\Users\Admin\AppData\Local\Temp\7A8D.exe
    1⤵
    • Executes dropped EXE
    PID:1020
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1020 -s 552
      2⤵
      • Program crash
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:3316
  • C:\Users\Admin\AppData\Local\Temp\7DDA.exe
    C:\Users\Admin\AppData\Local\Temp\7DDA.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ckyvzhyv\
      2⤵
        PID:844
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rchhlcno.exe" C:\Windows\SysWOW64\ckyvzhyv\
        2⤵
          PID:3396
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create ckyvzhyv binPath= "C:\Windows\SysWOW64\ckyvzhyv\rchhlcno.exe /d\"C:\Users\Admin\AppData\Local\Temp\7DDA.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:3088
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description ckyvzhyv "wifi internet conection"
            2⤵
              PID:2004
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start ckyvzhyv
              2⤵
                PID:236
              • C:\Windows\SysWOW64\netsh.exe
                "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
                2⤵
                  PID:552
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 784
                  2⤵
                  • Program crash
                  PID:3844
              • C:\Users\Admin\AppData\Local\Temp\7FBF.exe
                C:\Users\Admin\AppData\Local\Temp\7FBF.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:3112
                • C:\Users\Admin\AppData\Local\Temp\7FBF.exe
                  C:\Users\Admin\AppData\Local\Temp\7FBF.exe
                  2⤵
                  • Executes dropped EXE
                  PID:3528
              • C:\Windows\SysWOW64\ckyvzhyv\rchhlcno.exe
                C:\Windows\SysWOW64\ckyvzhyv\rchhlcno.exe /d"C:\Users\Admin\AppData\Local\Temp\7DDA.exe"
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of WriteProcessMemory
                PID:3956
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe
                  2⤵
                  • Drops file in System32 directory
                  • Modifies data under HKEY_USERS
                  PID:4048
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 3956 -s 528
                  2⤵
                  • Program crash
                  PID:3756
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2912 -ip 2912
                1⤵
                  PID:1152
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3956 -ip 3956
                  1⤵
                    PID:100
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1020 -ip 1020
                    1⤵
                    • Suspicious use of NtCreateProcessExOtherParentProcess
                    • Suspicious use of WriteProcessMemory
                    PID:3016

                  Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/1020-144-0x000000000089D000-0x00000000008AE000-memory.dmp

                          Filesize

                          68KB

                        • memory/1020-151-0x0000000000770000-0x000000000078C000-memory.dmp

                          Filesize

                          112KB

                        • memory/1020-152-0x0000000000400000-0x0000000000560000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/1940-136-0x0000000000400000-0x0000000000409000-memory.dmp

                          Filesize

                          36KB

                        • memory/2484-137-0x0000000000660000-0x0000000000676000-memory.dmp

                          Filesize

                          88KB

                        • memory/2484-170-0x0000000002440000-0x0000000002456000-memory.dmp

                          Filesize

                          88KB

                        • memory/2696-134-0x0000000002290000-0x0000000002299000-memory.dmp

                          Filesize

                          36KB

                        • memory/2696-133-0x00000000005BE000-0x00000000005CF000-memory.dmp

                          Filesize

                          68KB

                        • memory/2912-158-0x0000000000400000-0x000000000055F000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/2912-157-0x0000000002150000-0x0000000002163000-memory.dmp

                          Filesize

                          76KB

                        • memory/2912-156-0x000000000076D000-0x000000000077E000-memory.dmp

                          Filesize

                          68KB

                        • memory/3112-160-0x00000000005E0000-0x000000000066A000-memory.dmp

                          Filesize

                          552KB

                        • memory/3112-165-0x0000000004FA0000-0x0000000004FBE000-memory.dmp

                          Filesize

                          120KB

                        • memory/3112-166-0x0000000005020000-0x0000000005021000-memory.dmp

                          Filesize

                          4KB

                        • memory/3112-167-0x0000000004F20000-0x0000000004F21000-memory.dmp

                          Filesize

                          4KB

                        • memory/3112-162-0x0000000005030000-0x00000000050A6000-memory.dmp

                          Filesize

                          472KB

                        • memory/3112-159-0x00000000005E0000-0x000000000066A000-memory.dmp

                          Filesize

                          552KB

                        • memory/3112-171-0x00000000057D0000-0x0000000005D74000-memory.dmp

                          Filesize

                          5.6MB

                        • memory/3528-191-0x0000000005680000-0x0000000005C98000-memory.dmp

                          Filesize

                          6.1MB

                        • memory/3528-190-0x0000000005770000-0x00000000057AC000-memory.dmp

                          Filesize

                          240KB

                        • memory/3528-189-0x0000000005840000-0x000000000594A000-memory.dmp

                          Filesize

                          1.0MB

                        • memory/3528-188-0x0000000005710000-0x0000000005722000-memory.dmp

                          Filesize

                          72KB

                        • memory/3528-187-0x0000000005CA0000-0x00000000062B8000-memory.dmp

                          Filesize

                          6.1MB

                        • memory/3528-186-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/3528-182-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/3528-185-0x0000000000400000-0x0000000000420000-memory.dmp

                          Filesize

                          128KB

                        • memory/3956-175-0x0000000000829000-0x0000000000839000-memory.dmp

                          Filesize

                          64KB

                        • memory/3956-180-0x0000000000400000-0x000000000055F000-memory.dmp

                          Filesize

                          1.4MB

                        • memory/4012-148-0x0000000001F50000-0x0000000001F59000-memory.dmp

                          Filesize

                          36KB

                        • memory/4012-149-0x0000000001F70000-0x0000000001F79000-memory.dmp

                          Filesize

                          36KB

                        • memory/4012-150-0x0000000000400000-0x0000000000452000-memory.dmp

                          Filesize

                          328KB

                        • memory/4048-179-0x00000000006D0000-0x00000000006D1000-memory.dmp

                          Filesize

                          4KB

                        • memory/4048-178-0x00000000006D0000-0x00000000006D1000-memory.dmp

                          Filesize

                          4KB

                        • memory/4048-177-0x00000000027C0000-0x00000000027D5000-memory.dmp

                          Filesize

                          84KB