Analysis

  • max time kernel
    33s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/02/2024, 20:51

General

  • Target
    af70fcf0d4032564a34f82a4cda2ae87.exe
  • Size 160KB
  • Sample240229-znf3escc2s
  • SHA256 108e554f9a900d232f2156033cd9339f1316843befbeaf809f3bdb9186b6970e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • sality

C2
  • http://89.119.67.154/testo5/

  • http://kukutrustnet777.info/home.gif

  • http://kukutrustnet888.info/home.gif

  • http://kukutrustnet987.info/home.gif

Signatures

  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 11 IoCs
  • UPX packed file 9 IoCs

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

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:788
    • C:\Windows\system32\fontdrvhost.exe
      "fontdrvhost.exe"
      1⤵
        PID:796
      • C:\Windows\system32\dwm.exe
        "dwm.exe"
        1⤵
          PID:388
        • C:\Windows\system32\sihost.exe
          sihost.exe
          1⤵
            PID:2436
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
              PID:2464
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
                PID:2556
              • C:\Windows\Explorer.EXE
                C:\Windows\Explorer.EXE
                1⤵
                  PID:3360
                  • C:\Users\Admin\AppData\Local\Temp\af70fcf0d4032564a34f82a4cda2ae87.exe
                    "C:\Users\Admin\AppData\Local\Temp\af70fcf0d4032564a34f82a4cda2ae87.exe"
                    2⤵
                    • UAC bypass
                    • Checks whether UAC is enabled
                    • Drops file in Windows directory
                    • Suspicious use of WriteProcessMemory
                    • System policy modification
                    PID:472
                    • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
                      "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
                      3⤵
                      • UAC bypass
                      • Deletes itself
                      • Executes dropped EXE
                      • Loads dropped DLL
                      • Checks whether UAC is enabled
                      • Drops file in Program Files directory
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      • Suspicious use of WriteProcessMemory
                      • System policy modification
                      PID:4852
                      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                        "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://www.shopperreports.com/Installation/Browsing/Uninstall.aspx?partner=ShopperReports&group=SR&UID=&bar_ver=2.7.37&CID=&IID=&BANNER_ID=&REQUESTOR_ID=&COUNTRY=&SG=&USER_CREATE_DATE=&Affiliate_Id=1000007000&ie_user_agent=
                        4⤵
                          PID:1368
                          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1368 CREDAT:17410 /prefetch:2
                            5⤵
                              PID:3508
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:3644
                      • C:\Windows\system32\DllHost.exe
                        C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                        1⤵
                          PID:3872
                        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                          1⤵
                            PID:3968
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            1⤵
                              PID:4084
                            • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                              "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                              1⤵
                                PID:2668
                              • C:\Windows\System32\RuntimeBroker.exe
                                C:\Windows\System32\RuntimeBroker.exe -Embedding
                                1⤵
                                  PID:4116
                                • C:\Windows\System32\RuntimeBroker.exe
                                  C:\Windows\System32\RuntimeBroker.exe -Embedding
                                  1⤵
                                    PID:2156
                                  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe
                                    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost.exe" -ServerName:InputApp.AppX9jnwykgrccxc8by3hsrsh07r423xzvav.mca
                                    1⤵
                                      PID:4896
                                    • C:\Windows\System32\RuntimeBroker.exe
                                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                                      1⤵
                                        PID:1948
                                      • C:\Windows\system32\backgroundTaskHost.exe
                                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
                                        1⤵
                                          PID:3720
                                        • C:\Windows\system32\backgroundTaskHost.exe
                                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                                          1⤵
                                            PID:5028
                                          • C:\Windows\system32\backgroundTaskHost.exe
                                            "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                                            1⤵
                                              PID:4872
                                            • C:\Windows\System32\RuntimeBroker.exe
                                              C:\Windows\System32\RuntimeBroker.exe -Embedding
                                              1⤵
                                                PID:4948

                                              Network

                                                    MITRE ATT&CK Enterprise v15

                                                    Replay Monitor

                                                    Loading Replay Monitor...

                                                    Downloads

                                                    suggestions[1].en-US

                                                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\86GPDKUQ\suggestions[1].en-US
                                                    • Size 17KB
                                                    • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    Au_.exe

                                                    • Path C:\Users\Admin\AppData\Local\Temp\0E5775AD_Rar\Au_.exe
                                                    • Size 88KB
                                                    • SHA256 d9e6aacf461011e39561b5e25c11c99def46f1383df9cafdc9bc32f4c1424c7f
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    Dialer.dll

                                                    • Path C:\Users\Admin\AppData\Local\Temp\nsd75EC.tmp\Dialer.dll
                                                    • Size 3KB
                                                    • SHA256 4742cddec8e5e059ca106fb85f6a2dc690c18461b4cde07b36aa2b25c6e3f2c9
                                                    • MD5 SHA1 SHA512

                                                    InstallOptions.dll

                                                    • Path C:\Users\Admin\AppData\Local\Temp\nsd75EC.tmp\InstallOptions.dll
                                                    • Size 14KB
                                                    • SHA256 17f0946e0847bbaa6a06eb58aead13fce22a8606e9b3744cd2241debdf8d8bae
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    InstallerHelperPlugin.dll

                                                    • Path C:\Users\Admin\AppData\Local\Temp\nsd75EC.tmp\InstallerHelperPlugin.dll
                                                    • Size 49KB
                                                    • SHA256 ea67e8f37654c7278903c73d62fbc8ec183881ab32feee5e2109c84715e63ecc
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    System.dll

                                                    • Path C:\Users\Admin\AppData\Local\Temp\nsd75EC.tmp\System.dll
                                                    • Size 10KB
                                                    • SHA256 7f3057abae7e8b5b91a35fbb23897657accb8c724e923d5d4a0e9208ca09c445
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    ioSpecial.ini

                                                    • Path C:\Users\Admin\AppData\Local\Temp\nsd75EC.tmp\ioSpecial.ini
                                                    • Size 1KB
                                                    • SHA256 8eb452bff31690511b95156f323ee2f61727256a605a1dc424f365944d457af5
                                                    • MD5 SHA1 SHA512

                                                    Au_.exe

                                                    • Path C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
                                                    • Size 160KB
                                                    • SHA256 108e554f9a900d232f2156033cd9339f1316843befbeaf809f3bdb9186b6970e
                                                    • MD5 SHA1 SHA512 SSDEEP

                                                    SYSTEM.INI

                                                    • Path C:\Windows\SYSTEM.INI
                                                    • Size 258B
                                                    • SHA256 ec5080cadbe18fa15935be2c1699cca32320dbee99566b705c48dfa0f86ce71c
                                                    • MD5 SHA1 SHA512

                                                    memory/472-14-0x0000000000400000-0x000000000044A000-memory.dmp

                                                    memory/472-4-0x0000000002360000-0x0000000003390000-memory.dmp

                                                    memory/472-2-0x0000000002360000-0x0000000003390000-memory.dmp

                                                    memory/472-0-0x0000000000400000-0x000000000044A000-memory.dmp

                                                    memory/4852-233-0x0000000005CF0000-0x0000000005CF2000-memory.dmp

                                                    memory/4852-234-0x0000000005CF0000-0x0000000005CF2000-memory.dmp

                                                    memory/4852-232-0x0000000005F40000-0x0000000005F41000-memory.dmp

                                                    memory/4852-230-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-231-0x0000000005CF0000-0x0000000005CF2000-memory.dmp

                                                    memory/4852-254-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-295-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-228-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-300-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-311-0x00000000031B0000-0x00000000041E0000-memory.dmp

                                                    memory/4852-337-0x0000000005CF0000-0x0000000005CF2000-memory.dmp

                                                    memory/4852-341-0x0000000000400000-0x000000000044A000-memory.dmp

                                                    memory/4852-229-0x00000000031B0000-0x00000000041E0000-memory.dmp