Analysis

  • max time kernel
    49s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    20-07-2021 06:01

General

  • Target

    474a473bf46fdbfb5a9344937674c1455d764e74c2cd8892da7d59f68ffadd5c.exe

  • Size

    3.2MB

  • MD5

    88a990a868eada802839185b6f05c541

  • SHA1

    499be12d4fe4f30e672601b1ccbfc4f014a8bca8

  • SHA256

    474a473bf46fdbfb5a9344937674c1455d764e74c2cd8892da7d59f68ffadd5c

  • SHA512

    7bd11e52a079da6584669707617a433a9f233a7300057d4751872ab202dc665b9c8429df7a641951ef04f51af74fe09e5ac6be49aa7fe2aedb235409e0243cad

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • 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.

  • Socelars

    Socelars is an infostealer targeting browser cookies and credit card credentials.

  • Socelars Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 15 IoCs
  • VMProtect packed file 5 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • autoit_exe 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in Windows directory 1 IoCs
  • 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 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Schedule
    1⤵
    • Drops file in System32 directory
    PID:860
    • C:\Users\Admin\AppData\Roaming\vuthggc
      C:\Users\Admin\AppData\Roaming\vuthggc
      2⤵
        PID:5708
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s Themes
      1⤵
        PID:1252
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s SENS
        1⤵
          PID:1412
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
          1⤵
            PID:2416
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
            1⤵
              PID:2424
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
              1⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:2620
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
              1⤵
                PID:1844
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s Browser
                1⤵
                  PID:2852
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s WpnService
                  1⤵
                    PID:2628
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                    1⤵
                      PID:1232
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
                      1⤵
                        PID:1080
                      • c:\windows\system32\svchost.exe
                        c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
                        1⤵
                          PID:1000
                        • C:\Users\Admin\AppData\Local\Temp\474a473bf46fdbfb5a9344937674c1455d764e74c2cd8892da7d59f68ffadd5c.exe
                          "C:\Users\Admin\AppData\Local\Temp\474a473bf46fdbfb5a9344937674c1455d764e74c2cd8892da7d59f68ffadd5c.exe"
                          1⤵
                          • Checks computer location settings
                          • Suspicious use of WriteProcessMemory
                          PID:3492
                          • C:\Users\Admin\AppData\Local\Temp\Files.exe
                            "C:\Users\Admin\AppData\Local\Temp\Files.exe"
                            2⤵
                            • Executes dropped EXE
                            • Checks computer location settings
                            • Suspicious use of WriteProcessMemory
                            PID:2572
                            • C:\Users\Admin\AppData\Local\Temp\RarSFX0\File.exe
                              "C:\Users\Admin\AppData\Local\Temp\RarSFX0\File.exe"
                              3⤵
                              • Executes dropped EXE
                              • Suspicious use of FindShellTrayWindow
                              • Suspicious use of SendNotifyMessage
                              PID:2812
                          • C:\Users\Admin\AppData\Local\Temp\Folder.exe
                            "C:\Users\Admin\AppData\Local\Temp\Folder.exe"
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of WriteProcessMemory
                            PID:2804
                            • C:\Users\Admin\AppData\Local\Temp\Folder.exe
                              "C:\Users\Admin\AppData\Local\Temp\Folder.exe" -a
                              3⤵
                              • Executes dropped EXE
                              PID:4476
                          • C:\Users\Admin\AppData\Local\Temp\KRSetp.exe
                            "C:\Users\Admin\AppData\Local\Temp\KRSetp.exe"
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of AdjustPrivilegeToken
                            PID:3568
                          • C:\Users\Admin\AppData\Local\Temp\Info.exe
                            "C:\Users\Admin\AppData\Local\Temp\Info.exe"
                            2⤵
                            • Executes dropped EXE
                            • Suspicious use of SetWindowsHookEx
                            • Suspicious use of WriteProcessMemory
                            PID:4132
                            • C:\Users\Admin\Documents\CupflGKtJXGtokuIRIlLl1KC.exe
                              "C:\Users\Admin\Documents\CupflGKtJXGtokuIRIlLl1KC.exe"
                              3⤵
                              • Executes dropped EXE
                              PID:5128
                            • C:\Users\Admin\Documents\45EQltnOw3cRjhjG_e8y02TA.exe
                              "C:\Users\Admin\Documents\45EQltnOw3cRjhjG_e8y02TA.exe"
                              3⤵
                                PID:5220
                              • C:\Users\Admin\Documents\sf3RLwrggmAlXhmYYEI_B2dz.exe
                                "C:\Users\Admin\Documents\sf3RLwrggmAlXhmYYEI_B2dz.exe"
                                3⤵
                                  PID:5204
                                • C:\Users\Admin\Documents\Tjn6YA0tUDzdVRMEh4C5bICH.exe
                                  "C:\Users\Admin\Documents\Tjn6YA0tUDzdVRMEh4C5bICH.exe"
                                  3⤵
                                    PID:5192
                                  • C:\Users\Admin\Documents\uXBIc3lPS0_NgBL89h8Fsydq.exe
                                    "C:\Users\Admin\Documents\uXBIc3lPS0_NgBL89h8Fsydq.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    PID:5180
                                  • C:\Users\Admin\Documents\Rv08_X5AQOmr65izmjZ0_u1C.exe
                                    "C:\Users\Admin\Documents\Rv08_X5AQOmr65izmjZ0_u1C.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    PID:5156
                                  • C:\Users\Admin\Documents\_L_El8eHA4PcR_Gu7iXH20Cd.exe
                                    "C:\Users\Admin\Documents\_L_El8eHA4PcR_Gu7iXH20Cd.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    • Suspicious use of SetWindowsHookEx
                                    PID:5164
                                  • C:\Users\Admin\Documents\0ZRpSS6ctIKGfFhyELD5Ykwp.exe
                                    "C:\Users\Admin\Documents\0ZRpSS6ctIKGfFhyELD5Ykwp.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    PID:4852
                                  • C:\Users\Admin\Documents\8I7bq4_vxeowMnhAnl1HqjE5.exe
                                    "C:\Users\Admin\Documents\8I7bq4_vxeowMnhAnl1HqjE5.exe"
                                    3⤵
                                    • Executes dropped EXE
                                    PID:4300
                                  • C:\Users\Admin\Documents\s3xZlLWGCMz618QZwlfk7MXd.exe
                                    "C:\Users\Admin\Documents\s3xZlLWGCMz618QZwlfk7MXd.exe"
                                    3⤵
                                      PID:5256
                                    • C:\Users\Admin\Documents\M0NwE3HNQTkcOOhRD74p7cdt.exe
                                      "C:\Users\Admin\Documents\M0NwE3HNQTkcOOhRD74p7cdt.exe"
                                      3⤵
                                        PID:5264
                                      • C:\Users\Admin\Documents\_AswUW1CNwHCAN1MrQhpXmYB.exe
                                        "C:\Users\Admin\Documents\_AswUW1CNwHCAN1MrQhpXmYB.exe"
                                        3⤵
                                          PID:5428
                                        • C:\Users\Admin\Documents\KHa7cgwaXWoFcEz0HfNuyxrA.exe
                                          "C:\Users\Admin\Documents\KHa7cgwaXWoFcEz0HfNuyxrA.exe"
                                          3⤵
                                            PID:5416
                                          • C:\Users\Admin\Documents\JuAIOvAMmaWayCpOWLjhqI8v.exe
                                            "C:\Users\Admin\Documents\JuAIOvAMmaWayCpOWLjhqI8v.exe"
                                            3⤵
                                              PID:5612
                                            • C:\Users\Admin\Documents\Rcy2khxESqYPI5_vqozCSkrn.exe
                                              "C:\Users\Admin\Documents\Rcy2khxESqYPI5_vqozCSkrn.exe"
                                              3⤵
                                                PID:5560
                                              • C:\Users\Admin\Documents\RAV0K7EseQSYe0xJ7aDDC723.exe
                                                "C:\Users\Admin\Documents\RAV0K7EseQSYe0xJ7aDDC723.exe"
                                                3⤵
                                                  PID:5592
                                                • C:\Users\Admin\Documents\cKfMi86HzJMPQ7V_ER1mOhqN.exe
                                                  "C:\Users\Admin\Documents\cKfMi86HzJMPQ7V_ER1mOhqN.exe"
                                                  3⤵
                                                    PID:5580
                                                  • C:\Users\Admin\Documents\Gk5D2Iie_lCH8axzo9AHUDzs.exe
                                                    "C:\Users\Admin\Documents\Gk5D2Iie_lCH8axzo9AHUDzs.exe"
                                                    3⤵
                                                      PID:5568
                                                  • C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\jg3_3uag.exe"
                                                    2⤵
                                                    • Executes dropped EXE
                                                    • Checks whether UAC is enabled
                                                    PID:4188
                                                  • C:\Users\Admin\AppData\Local\Temp\Install.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\Install.exe"
                                                    2⤵
                                                    • Executes dropped EXE
                                                    • Modifies system certificate store
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    • Suspicious use of WriteProcessMemory
                                                    PID:4228
                                                    • C:\Windows\SysWOW64\cmd.exe
                                                      cmd.exe /c taskkill /f /im chrome.exe
                                                      3⤵
                                                      • Suspicious use of WriteProcessMemory
                                                      PID:4800
                                                      • C:\Windows\SysWOW64\taskkill.exe
                                                        taskkill /f /im chrome.exe
                                                        4⤵
                                                        • Kills process with taskkill
                                                        • Suspicious use of AdjustPrivilegeToken
                                                        PID:4912
                                                  • C:\Users\Admin\AppData\Local\Temp\pub2.exe
                                                    "C:\Users\Admin\AppData\Local\Temp\pub2.exe"
                                                    2⤵
                                                    • Executes dropped EXE
                                                    • Loads dropped DLL
                                                    • Checks SCSI registry key(s)
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious behavior: MapViewOfSection
                                                    PID:4288
                                                • \??\c:\windows\system32\svchost.exe
                                                  c:\windows\system32\svchost.exe -k netsvcs -s BITS
                                                  1⤵
                                                  • Suspicious use of SetThreadContext
                                                  • Modifies data under HKEY_USERS
                                                  • Modifies registry class
                                                  • Suspicious behavior: EnumeratesProcesses
                                                  • Suspicious use of AdjustPrivilegeToken
                                                  • Suspicious use of WriteProcessMemory
                                                  PID:3720
                                                  • C:\Windows\system32\svchost.exe
                                                    C:\Windows\system32\svchost.exe -k SystemNetworkService
                                                    2⤵
                                                    • Checks processor information in registry
                                                    • Modifies data under HKEY_USERS
                                                    PID:5000
                                                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
                                                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
                                                  1⤵
                                                  • Drops file in Windows directory
                                                  • Modifies Internet Explorer settings
                                                  • Modifies registry class
                                                  • Suspicious use of AdjustPrivilegeToken
                                                  • Suspicious use of SetWindowsHookEx
                                                  PID:3144
                                                • C:\Windows\system32\browser_broker.exe
                                                  C:\Windows\system32\browser_broker.exe -Embedding
                                                  1⤵
                                                  • Modifies Internet Explorer settings
                                                  PID:4008
                                                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                                                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                                                  1⤵
                                                  • Modifies registry class
                                                  • Suspicious behavior: MapViewOfSection
                                                  • Suspicious use of SetWindowsHookEx
                                                  • Suspicious use of WriteProcessMemory
                                                  PID:4596
                                                • C:\Windows\system32\rUNdlL32.eXe
                                                  rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                                                  1⤵
                                                  • Process spawned unexpected child process
                                                  • Suspicious use of WriteProcessMemory
                                                  PID:4644
                                                  • C:\Windows\SysWOW64\rundll32.exe
                                                    rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                                                    2⤵
                                                    • Loads dropped DLL
                                                    • Modifies registry class
                                                    • Suspicious behavior: EnumeratesProcesses
                                                    • Suspicious use of AdjustPrivilegeToken
                                                    • Suspicious use of WriteProcessMemory
                                                    PID:4680
                                                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                                                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                                                  1⤵
                                                  • Modifies registry class
                                                  PID:4876
                                                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                                                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                                                  1⤵
                                                  • Modifies Internet Explorer settings
                                                  • Modifies registry class
                                                  PID:4520
                                                • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
                                                  "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
                                                  1⤵
                                                    PID:4168

                                                  Network

                                                  MITRE ATT&CK Enterprise v6

                                                  Replay Monitor

                                                  Loading Replay Monitor...

                                                  Downloads

                                                  • memory/860-199-0x000002DE7B830000-0x000002DE7B8A1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1000-191-0x0000023AACF10000-0x0000023AACF81000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1080-197-0x0000021265D30000-0x0000021265DA1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1232-194-0x000002BDB2210000-0x000002BDB2281000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1252-187-0x0000019FE3180000-0x0000019FE31F1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1412-201-0x00000234F8B50000-0x00000234F8BC1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/1844-203-0x000002022E270000-0x000002022E2E1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/2416-195-0x000002212F640000-0x000002212F6B1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/2424-193-0x0000023641140000-0x00000236411B1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/2620-200-0x000001EA89D80000-0x000001EA89DF1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/2628-205-0x000001F581810000-0x000001F581881000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/2852-188-0x000002D932400000-0x000002D932471000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/3000-216-0x0000000002770000-0x0000000002785000-memory.dmp

                                                    Filesize

                                                    84KB

                                                  • memory/3568-147-0x00000000015E0000-0x00000000015E1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/3568-149-0x000000001B9A0000-0x000000001B9A2000-memory.dmp

                                                    Filesize

                                                    8KB

                                                  • memory/3568-146-0x0000000001530000-0x000000000154D000-memory.dmp

                                                    Filesize

                                                    116KB

                                                  • memory/3568-142-0x0000000001520000-0x0000000001521000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/3568-133-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

                                                    Filesize

                                                    4KB

                                                  • memory/3720-186-0x0000023104B40000-0x0000023104BB1000-memory.dmp

                                                    Filesize

                                                    452KB

                                                  • memory/3720-183-0x0000023104A80000-0x0000023104ACC000-memory.dmp

                                                    Filesize

                                                    304KB

                                                  • memory/4188-240-0x00000000036A0000-0x0000000003700000-memory.dmp

                                                    Filesize

                                                    384KB

                                                  • memory/4188-224-0x00000000036A0000-0x00000000036B0000-memory.dmp

                                                    Filesize

                                                    64KB

                                                  • memory/4188-218-0x0000000003500000-0x0000000003510000-memory.dmp

                                                    Filesize

                                                    64KB

                                                  • memory/4188-233-0x0000000004A40000-0x0000000004A48000-memory.dmp

                                                    Filesize

                                                    32KB

                                                  • memory/4188-232-0x0000000004A40000-0x0000000004A48000-memory.dmp

                                                    Filesize

                                                    32KB

                                                  • memory/4188-231-0x0000000004AE0000-0x0000000004AE8000-memory.dmp

                                                    Filesize

                                                    32KB

                                                  • memory/4188-234-0x0000000003500000-0x0000000003560000-memory.dmp

                                                    Filesize

                                                    384KB

                                                  • memory/4188-230-0x00000000048E0000-0x00000000048E8000-memory.dmp

                                                    Filesize

                                                    32KB

                                                  • memory/4188-143-0x0000000000400000-0x00000000005DB000-memory.dmp

                                                    Filesize

                                                    1.9MB

                                                  • memory/4288-158-0x0000000000400000-0x00000000009AC000-memory.dmp

                                                    Filesize

                                                    5.7MB

                                                  • memory/4288-157-0x0000000000AA0000-0x0000000000BEA000-memory.dmp

                                                    Filesize

                                                    1.3MB

                                                  • memory/4680-160-0x0000000004420000-0x000000000447D000-memory.dmp

                                                    Filesize

                                                    372KB

                                                  • memory/4680-159-0x00000000044BD000-0x00000000045BE000-memory.dmp

                                                    Filesize

                                                    1.0MB

                                                  • memory/5000-189-0x000001FEE4400000-0x000001FEE4471000-memory.dmp

                                                    Filesize

                                                    452KB