Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 13:57

General

  • Target

    6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe

  • Size

    2.8MB

  • MD5

    4673b4d2b32efba511aa7dc9be2e5b72

  • SHA1

    9a7cbe8ef94e3570655a194d3902f80417978089

  • SHA256

    6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30

  • SHA512

    eac4dd42ca47bf2215f0a5ed95cec76567474572f314c0313779790d68e313cc5ea3db8fe9b9eb49ac837f3d3277c8de16182f40701689fa9bca6edb22c79c2c

  • SSDEEP

    49152:2+wK8GHrzRfcqwDTfh+a9PUnYnqXf/z25ee0JKqSS3jFzWo/Gu8gc4vV:RwrGHip8nfzyeJaipzW88gLvV

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 7 IoCs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe
    "C:\Users\Admin\AppData\Local\Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Modifies system certificate store
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe
      C:\Users\Admin\AppData\Local\Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=102.0.4880.56 --initial-client-data=0x2f4,0x2f8,0x2fc,0x2d0,0x300,0x74f13578,0x74f13588,0x74f13594
      2⤵
      • Loads dropped DLL
      PID:3656
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1060
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\Assistant_103.0.4928.25_Setup.exe_sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\Assistant_103.0.4928.25_Setup.exe_sfx.exe"
      2⤵
      • Executes dropped EXE
      PID:1252
    • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe
      "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe" --version
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports" "--crash-count-file=C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\crash_count.txt" --url=https://crashstats-collector.opera.com/collector/submit --annotation=channel=Stable --annotation=plat=Win32 --annotation=prod=OperaDesktop --annotation=ver=103.0.4928.25 --initial-client-data=0x268,0x26c,0x270,0x244,0x274,0xc71588,0xc71598,0xc715a4
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30.exe

          Filesize

          2.8MB

          MD5

          4673b4d2b32efba511aa7dc9be2e5b72

          SHA1

          9a7cbe8ef94e3570655a194d3902f80417978089

          SHA256

          6907943ea4af3beea1a4632bc1153c38bd42014736d8ca433ca63b719effdb30

          SHA512

          eac4dd42ca47bf2215f0a5ed95cec76567474572f314c0313779790d68e313cc5ea3db8fe9b9eb49ac837f3d3277c8de16182f40701689fa9bca6edb22c79c2c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\additional_file0.tmp

          Filesize

          1.9MB

          MD5

          b0f128c3579e6921cfff620179fb9864

          SHA1

          60e19c987a96182206994ffd509d2849fdb427e3

          SHA256

          1c3ddbdd3a8cc2e66a5f4c4db388dff028cd437d42f8982ddf7695cf38a1a9ee

          SHA512

          17977d85cbdbd4217098850d7eaff0a51e34d641648ec29e843fc299668d8127e367622c82b2a9ceab364099da8c707c8b4aa039e747102d7c950447a5d29212

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\Assistant_103.0.4928.25_Setup.exe_sfx.exe

          Filesize

          1.9MB

          MD5

          b0f128c3579e6921cfff620179fb9864

          SHA1

          60e19c987a96182206994ffd509d2849fdb427e3

          SHA256

          1c3ddbdd3a8cc2e66a5f4c4db388dff028cd437d42f8982ddf7695cf38a1a9ee

          SHA512

          17977d85cbdbd4217098850d7eaff0a51e34d641648ec29e843fc299668d8127e367622c82b2a9ceab364099da8c707c8b4aa039e747102d7c950447a5d29212

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\Assistant_103.0.4928.25_Setup.exe_sfx.exe

          Filesize

          1.9MB

          MD5

          b0f128c3579e6921cfff620179fb9864

          SHA1

          60e19c987a96182206994ffd509d2849fdb427e3

          SHA256

          1c3ddbdd3a8cc2e66a5f4c4db388dff028cd437d42f8982ddf7695cf38a1a9ee

          SHA512

          17977d85cbdbd4217098850d7eaff0a51e34d641648ec29e843fc299668d8127e367622c82b2a9ceab364099da8c707c8b4aa039e747102d7c950447a5d29212

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe

          Filesize

          2.1MB

          MD5

          34afbc4605531efdbe6f6ce57f567c0a

          SHA1

          6cb65f3565e40e7d08f5a0ad37b1b9182b4fc81b

          SHA256

          0441668bc7daf97c16734a8a95eb29de9fd2f4bec368f4d009e5437862249019

          SHA512

          577fe412d9b20055cf2f67e029a6829301d6b010cc03d2cf8ce89b87c213530dc4d396a27b92f56ed8260afd59d6fbd8cf841e807460f0a0bad4ad1df5b7c25c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\assistant_installer.exe

          Filesize

          2.1MB

          MD5

          34afbc4605531efdbe6f6ce57f567c0a

          SHA1

          6cb65f3565e40e7d08f5a0ad37b1b9182b4fc81b

          SHA256

          0441668bc7daf97c16734a8a95eb29de9fd2f4bec368f4d009e5437862249019

          SHA512

          577fe412d9b20055cf2f67e029a6829301d6b010cc03d2cf8ce89b87c213530dc4d396a27b92f56ed8260afd59d6fbd8cf841e807460f0a0bad4ad1df5b7c25c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbgcore.DLL

          Filesize

          166KB

          MD5

          5a6cd2117967ec78e7195b6ee10fc4da

          SHA1

          72d929eeb50dd58861a1d4cf13902c0b89fadc34

          SHA256

          a013652c95eca80356040312390d09ed78458fca6a0aef5ce3203dfe9cbc5040

          SHA512

          07aa64e6c681360c6c6c504041bd97f54dbf0aad8e498281dc8f8bdec2de4fc1c1bed9d0c4d3b6f4a4be19c408f7d34ff1c4a13db36488f698e3ae11855b895c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbgcore.dll

          Filesize

          166KB

          MD5

          5a6cd2117967ec78e7195b6ee10fc4da

          SHA1

          72d929eeb50dd58861a1d4cf13902c0b89fadc34

          SHA256

          a013652c95eca80356040312390d09ed78458fca6a0aef5ce3203dfe9cbc5040

          SHA512

          07aa64e6c681360c6c6c504041bd97f54dbf0aad8e498281dc8f8bdec2de4fc1c1bed9d0c4d3b6f4a4be19c408f7d34ff1c4a13db36488f698e3ae11855b895c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbgcore.dll

          Filesize

          166KB

          MD5

          5a6cd2117967ec78e7195b6ee10fc4da

          SHA1

          72d929eeb50dd58861a1d4cf13902c0b89fadc34

          SHA256

          a013652c95eca80356040312390d09ed78458fca6a0aef5ce3203dfe9cbc5040

          SHA512

          07aa64e6c681360c6c6c504041bd97f54dbf0aad8e498281dc8f8bdec2de4fc1c1bed9d0c4d3b6f4a4be19c408f7d34ff1c4a13db36488f698e3ae11855b895c

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbghelp.dll

          Filesize

          1.7MB

          MD5

          861a07bcf2a5cb0dda1aaf6dfcb57b26

          SHA1

          a0bdbbc398583a7cfdd88624c9ac2da1764e0826

          SHA256

          7878be3359a3ecfcf94f961bcdce3e6e8bc01a55eba640d45b867b94f30fcdbc

          SHA512

          062159168817968f1165cb06299217a556c4e6b00ef7c740f845fdcbbaca77da346ef5fd7403c6f9d81e173a2fcf40c63da57cb884158f8c037c0df0ce1cc5b9

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbghelp.dll

          Filesize

          1.7MB

          MD5

          861a07bcf2a5cb0dda1aaf6dfcb57b26

          SHA1

          a0bdbbc398583a7cfdd88624c9ac2da1764e0826

          SHA256

          7878be3359a3ecfcf94f961bcdce3e6e8bc01a55eba640d45b867b94f30fcdbc

          SHA512

          062159168817968f1165cb06299217a556c4e6b00ef7c740f845fdcbbaca77da346ef5fd7403c6f9d81e173a2fcf40c63da57cb884158f8c037c0df0ce1cc5b9

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\assistant\dbghelp.dll

          Filesize

          1.7MB

          MD5

          861a07bcf2a5cb0dda1aaf6dfcb57b26

          SHA1

          a0bdbbc398583a7cfdd88624c9ac2da1764e0826

          SHA256

          7878be3359a3ecfcf94f961bcdce3e6e8bc01a55eba640d45b867b94f30fcdbc

          SHA512

          062159168817968f1165cb06299217a556c4e6b00ef7c740f845fdcbbaca77da346ef5fd7403c6f9d81e173a2fcf40c63da57cb884158f8c037c0df0ce1cc5b9

        • C:\Users\Admin\AppData\Local\Temp\.opera\Opera Installer Temp\opera_package_202310120218571\opera_package

          Filesize

          94.5MB

          MD5

          c785c2774b5af04a95c0053764610704

          SHA1

          954ab1d56c79b5bfc40ef525220bc9a61c55a735

          SHA256

          ebaaf30ec84b56432060e83c0aca5421942019d428fb4f759f86f575d10911aa

          SHA512

          ab58c9cbd73585e67a90a875c854d05fa51c2a24956f96574962658ce6cd682489e78890c02f420bef0519f6e9606685f849adf028c9b06c86534021a2123052

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2310120218554612532.dll

          Filesize

          4.6MB

          MD5

          6aceaeba686345df2e1f3284cc090abe

          SHA1

          5cc8eb87a170c5bc91472cd6cc6d435370ae741b

          SHA256

          73e29a88eccb162b70b366b9c91986b7bf5ce90b9072eaa88f146fb06e8d8885

          SHA512

          8448a64feaed4bb1af04c9a34d92c5ecfbf7da3c4cb2a1f23ccc024cfd53da8a18a6bdb45c8c337f212c23e0f1b25da44118e9b41774d7aa74b6e0a64f944d69

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2310120218562743656.dll

          Filesize

          4.6MB

          MD5

          6aceaeba686345df2e1f3284cc090abe

          SHA1

          5cc8eb87a170c5bc91472cd6cc6d435370ae741b

          SHA256

          73e29a88eccb162b70b366b9c91986b7bf5ce90b9072eaa88f146fb06e8d8885

          SHA512

          8448a64feaed4bb1af04c9a34d92c5ecfbf7da3c4cb2a1f23ccc024cfd53da8a18a6bdb45c8c337f212c23e0f1b25da44118e9b41774d7aa74b6e0a64f944d69

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2310120218568211060.dll

          Filesize

          4.6MB

          MD5

          6aceaeba686345df2e1f3284cc090abe

          SHA1

          5cc8eb87a170c5bc91472cd6cc6d435370ae741b

          SHA256

          73e29a88eccb162b70b366b9c91986b7bf5ce90b9072eaa88f146fb06e8d8885

          SHA512

          8448a64feaed4bb1af04c9a34d92c5ecfbf7da3c4cb2a1f23ccc024cfd53da8a18a6bdb45c8c337f212c23e0f1b25da44118e9b41774d7aa74b6e0a64f944d69

        • C:\Users\Admin\AppData\Local\Temp\Opera_installer_2310120218568211060.dll

          Filesize

          4.6MB

          MD5

          6aceaeba686345df2e1f3284cc090abe

          SHA1

          5cc8eb87a170c5bc91472cd6cc6d435370ae741b

          SHA256

          73e29a88eccb162b70b366b9c91986b7bf5ce90b9072eaa88f146fb06e8d8885

          SHA512

          8448a64feaed4bb1af04c9a34d92c5ecfbf7da3c4cb2a1f23ccc024cfd53da8a18a6bdb45c8c337f212c23e0f1b25da44118e9b41774d7aa74b6e0a64f944d69

        • C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports\settings.dat

          Filesize

          40B

          MD5

          7704c0e8d1cc9b0f7ce6ccda72632aa3

          SHA1

          5ff4e44a9c2ba106bafae5389ed07471c7aaff3b

          SHA256

          5b647f1777d1436250aa6093854cd70b95d53de6e06698d78ce5cf017731fce4

          SHA512

          757197bf7e7249c071cc0e3d01f2ca29d5e9ce24685725c0e9cbe0545e16bc67077d67aef415eab166ca709a5a6d9f6370e09052c9b32095afa23edc8d24540b

        • C:\Users\Admin\AppData\Roaming\Opera Software\Opera Stable\Crash Reports\settings.dat

          Filesize

          40B

          MD5

          7704c0e8d1cc9b0f7ce6ccda72632aa3

          SHA1

          5ff4e44a9c2ba106bafae5389ed07471c7aaff3b

          SHA256

          5b647f1777d1436250aa6093854cd70b95d53de6e06698d78ce5cf017731fce4

          SHA512

          757197bf7e7249c071cc0e3d01f2ca29d5e9ce24685725c0e9cbe0545e16bc67077d67aef415eab166ca709a5a6d9f6370e09052c9b32095afa23edc8d24540b

        • memory/1060-17-0x00000000009A0000-0x0000000000ED5000-memory.dmp

          Filesize

          5.2MB

        • memory/1060-19-0x00000000009A0000-0x0000000000ED5000-memory.dmp

          Filesize

          5.2MB

        • memory/2532-0-0x00000000003A0000-0x00000000008D5000-memory.dmp

          Filesize

          5.2MB

        • memory/2532-27-0x00000000003A0000-0x00000000008D5000-memory.dmp

          Filesize

          5.2MB

        • memory/3656-4-0x00000000003A0000-0x00000000008D5000-memory.dmp

          Filesize

          5.2MB

        • memory/3656-29-0x00000000003A0000-0x00000000008D5000-memory.dmp

          Filesize

          5.2MB