Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 13:56

General

  • Target

    77087ecd37071a3b3a927d177d47106d551e7f1b88e5d5f9e22da590bf97f4e3.exe

  • Size

    1.4MB

  • MD5

    573df529cb803e3ca1cd9e8f576678a6

  • SHA1

    c896a7e7123cae201e6572ebffafcebd3cbef870

  • SHA256

    77087ecd37071a3b3a927d177d47106d551e7f1b88e5d5f9e22da590bf97f4e3

  • SHA512

    b6c2dc733d68367e236b9ac5476e455f6c792d3230c8f56a444efc667fd093ff200ae58c948893a6a09bd238cf5cd2f93da1ac8ceef5cd0f5eab219c0b607b71

  • SSDEEP

    24576:5S6fJHL4IXtBFx3iD2hZScFYMz3QV0UMIbhpg0txRKC5HJlbkdRZEi9OTVQpP7S+:5740ZDv7YMMSU5bhqQxRKCRWRZEKOapJ

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 5 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77087ecd37071a3b3a927d177d47106d551e7f1b88e5d5f9e22da590bf97f4e3.exe
    "C:\Users\Admin\AppData\Local\Temp\77087ecd37071a3b3a927d177d47106d551e7f1b88e5d5f9e22da590bf97f4e3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dil.exe
      "C:\Users\Admin\AppData\Local\Temp/7d3e5551/dil.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:4676
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\SaveClicker\nk.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:5112
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\SaveClicker\nk.x64.dll"
          4⤵
          • Registers COM server for autorun
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          • Modifies Internet Explorer settings
          • Modifies registry class
          PID:3036
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:4652
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:5060

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\SaveClicker\nk.dat

        Filesize

        4KB

        MD5

        46c4d975191648be25e202ddc9aa3ec1

        SHA1

        c908d04bdc0ce9a6a9dddca1c4d3a42133cff106

        SHA256

        39230c1e0995b0241434f913a87fb679a14a2315dd46f61b2c4429de53fec5bd

        SHA512

        0a481dac695c6edc2a6ca8f077d7a55436eca4319998eed38c5aa5837cb2868413d564d65b1d78bef227c13ff98663b0538d8f1b9609c7de51522a80bd4a94f3

      • C:\Program Files (x86)\SaveClicker\nk.dll

        Filesize

        325KB

        MD5

        d316153e6feea98b96650c4f05e2f31a

        SHA1

        21ef422afe7f9bcbd86f0381b296a8f2d2f66fe4

        SHA256

        c22e935a2b45bf48d94ee2f268b163d73b1b0c6c10f5ef6737591ec3da7c1578

        SHA512

        9a9752d3cb544c3cbad053aa93e44e95892094099181a15b40b8dcf200180eb72eadd4fb1cd6792434d20e60d9ae433370a47ed19753317078e51e616438514c

      • C:\Program Files (x86)\SaveClicker\nk.tlb

        Filesize

        3KB

        MD5

        736f8e927a2bc98863a50a76ac7a0973

        SHA1

        fe78f86dc43442192b9f4e56dfdb35e36d23cfbb

        SHA256

        b7fb683bbb4c444b7121ad4cb00a4b8f247ea32ee367a4d0bc6ea05e6803c45f

        SHA512

        321e777413ee96dd05b3c412fd90b0e78ea8a9550a8d7af27d7a1530302833c97eb7e41b018e7bb89e82c8987e2527094b88ac94b74a3b5cc4b8bea1a0ef287e

      • C:\Program Files (x86)\SaveClicker\nk.x64.dll

        Filesize

        389KB

        MD5

        7cd46176b71eda0ecb89413ed185e606

        SHA1

        58f24d30eb5251a553ec7dac81f3fc2398e3e63e

        SHA256

        b959f8550304467338e0b2975acf36b6c530e575d3cc6847f82fa7576fb86bb7

        SHA512

        217eee22ebf8ca536e49378a6c831f71e0bdf6ef637d14395e8e765a9f2e1b98bbda0a9bf273592dc9665d9e63f72aa58fd9dbd66ede56f8855ee500c67becdd

      • C:\Program Files (x86)\SaveClicker\nk.x64.dll

        Filesize

        389KB

        MD5

        7cd46176b71eda0ecb89413ed185e606

        SHA1

        58f24d30eb5251a553ec7dac81f3fc2398e3e63e

        SHA256

        b959f8550304467338e0b2975acf36b6c530e575d3cc6847f82fa7576fb86bb7

        SHA512

        217eee22ebf8ca536e49378a6c831f71e0bdf6ef637d14395e8e765a9f2e1b98bbda0a9bf273592dc9665d9e63f72aa58fd9dbd66ede56f8855ee500c67becdd

      • C:\Program Files (x86)\SaveClicker\nk.x64.dll

        Filesize

        389KB

        MD5

        7cd46176b71eda0ecb89413ed185e606

        SHA1

        58f24d30eb5251a553ec7dac81f3fc2398e3e63e

        SHA256

        b959f8550304467338e0b2975acf36b6c530e575d3cc6847f82fa7576fb86bb7

        SHA512

        217eee22ebf8ca536e49378a6c831f71e0bdf6ef637d14395e8e765a9f2e1b98bbda0a9bf273592dc9665d9e63f72aa58fd9dbd66ede56f8855ee500c67becdd

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\[email protected]\bootstrap.js

        Filesize

        2KB

        MD5

        df13f711e20e9c80171846d4f2f7ae06

        SHA1

        56d29cda58427efe0e21d3880d39eb1b0ef60bee

        SHA256

        6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

        SHA512

        6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\[email protected]\chrome.manifest

        Filesize

        23B

        MD5

        6b06cfee89dc2866ae76b1eb2dd832a3

        SHA1

        563e25a2e5e5b40a7766d86a59950a5b16c2cda9

        SHA256

        979d95b54a36ea86d1d3ef09937a446cdaa9e2843f9849376cab853a617a2fb7

        SHA512

        5adcbf53975f59b295262a85702dc0f959ee95a19e4c395c5be9e0945f237049feb901b71b13ace3d5d115e109852c1e006c7c2888be823d3954f7a3d9ceaf9f

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\[email protected]\content\bg.js

        Filesize

        7KB

        MD5

        18c7cbf5a548f1bb7b9630cb7d62093f

        SHA1

        6f438ac80595a6e4c8aee0cfef8acdeee64ad87d

        SHA256

        5721176fb9f4628a301f2dfdebbeecad276c2fdbec4435c7ef24e5c8d335be42

        SHA512

        b3a08b2f0bedd1dcbe5a777c34212f42a5af01c92ad1524b7bebed0e4c7d6d9adab009f8d2f84d2bae3544e13410c1abb493016ed9446d8c2af593ac32a6d783

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\[email protected]\install.rdf

        Filesize

        602B

        MD5

        78cae3e0e5546bd7eab6a7e2294e6e39

        SHA1

        1780de8155b441f0ecf4268cd29532e5d127246f

        SHA256

        d8d8559aa4f34bc397b7aeb06613ce6620d6d29719a9752e764f5a9289db1657

        SHA512

        2c339fc5df9716d4e49812980970a369d77eb2c60a7b8345b0e349a22ac9be07ec4ca1d4481f5889385dd5f42779fce69e56bf698cec5af6a36563a76bc53359

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dbkdopegnjadnmcknfdkgelgbeigckbb\K.js

        Filesize

        5KB

        MD5

        c750d05945f1366fbb7ce07baad59dc4

        SHA1

        3ad6528f1dd0f4b22790249ddf0f0a1164719d95

        SHA256

        76776e86ad7c572fd7b6cef36451edd2b8849f4534b5b44e2b37748ddaf30289

        SHA512

        d7389099d183f9872e0303bad2cbd765954d6f13ecbd4f62f681553856280e3fc3c281e1f6bdc8e66480b91d8ee5bedb9f07f6885fddf3a0597554b08bf6950b

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dbkdopegnjadnmcknfdkgelgbeigckbb\background.html

        Filesize

        138B

        MD5

        699f62f61f5a144d9154daa748a18abc

        SHA1

        e688ffa801968a547ebda17e616702323777c04b

        SHA256

        5f624995f9af114785dbf4c353f63d1756d97e716b18ed64cff80a083ca63796

        SHA512

        bd4b48c4109d896ef1ce14780dd041582fc1ddde212d7cac69bd13ae6d54786fd79726f5d25503066471cb88cbb8ca2f760acbb825b568033c9eb7293394c54c

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dbkdopegnjadnmcknfdkgelgbeigckbb\content.js

        Filesize

        144B

        MD5

        fca19198fd8af21016a8b1dec7980002

        SHA1

        fd01a47d14004e17a625efe66cc46a06c786cf40

        SHA256

        332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

        SHA512

        60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dbkdopegnjadnmcknfdkgelgbeigckbb\lsdb.js

        Filesize

        531B

        MD5

        36d98318ab2b3b2585a30984db328afb

        SHA1

        f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

        SHA256

        ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

        SHA512

        6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dbkdopegnjadnmcknfdkgelgbeigckbb\manifest.json

        Filesize

        503B

        MD5

        aa6fc24e028b07a032fbc6f859819dca

        SHA1

        166f2c578c4f164da313ece0e914e56e053418c2

        SHA256

        2f026100e6faf41a63ea0c5d289914bfceba28094b32c9a3566a4932b7c71038

        SHA512

        4f5328b27ace6ec4d786e7369b8a071fedf46f30e0b1d223d8fa9332d1df60914f22b84725e3055c894f027f79f05dd91d47ae5c22bebaad34c0af440f634701

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dil.dat

        Filesize

        4KB

        MD5

        46c4d975191648be25e202ddc9aa3ec1

        SHA1

        c908d04bdc0ce9a6a9dddca1c4d3a42133cff106

        SHA256

        39230c1e0995b0241434f913a87fb679a14a2315dd46f61b2c4429de53fec5bd

        SHA512

        0a481dac695c6edc2a6ca8f077d7a55436eca4319998eed38c5aa5837cb2868413d564d65b1d78bef227c13ff98663b0538d8f1b9609c7de51522a80bd4a94f3

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dil.exe

        Filesize

        564KB

        MD5

        0e40283546a07f8655a29d2dd0eb47b2

        SHA1

        708483119bf61e380a38df9b3d951ed9fef578d5

        SHA256

        175bc9c1241f15ae0a43f6b12fdc01337cb824c9b5ce6a51fdcbea7c4c98e323

        SHA512

        56adfd58ee0314b77d8351b6ec266ade8f0f59ccf6ac48f6641531733cc9b2b836f18a0ec2952d7e6a30bd18a320c3d1d796f6619e93ae449c6ccf3195514926

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\dil.exe

        Filesize

        564KB

        MD5

        0e40283546a07f8655a29d2dd0eb47b2

        SHA1

        708483119bf61e380a38df9b3d951ed9fef578d5

        SHA256

        175bc9c1241f15ae0a43f6b12fdc01337cb824c9b5ce6a51fdcbea7c4c98e323

        SHA512

        56adfd58ee0314b77d8351b6ec266ade8f0f59ccf6ac48f6641531733cc9b2b836f18a0ec2952d7e6a30bd18a320c3d1d796f6619e93ae449c6ccf3195514926

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\nk.dll

        Filesize

        325KB

        MD5

        d316153e6feea98b96650c4f05e2f31a

        SHA1

        21ef422afe7f9bcbd86f0381b296a8f2d2f66fe4

        SHA256

        c22e935a2b45bf48d94ee2f268b163d73b1b0c6c10f5ef6737591ec3da7c1578

        SHA512

        9a9752d3cb544c3cbad053aa93e44e95892094099181a15b40b8dcf200180eb72eadd4fb1cd6792434d20e60d9ae433370a47ed19753317078e51e616438514c

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\nk.tlb

        Filesize

        3KB

        MD5

        736f8e927a2bc98863a50a76ac7a0973

        SHA1

        fe78f86dc43442192b9f4e56dfdb35e36d23cfbb

        SHA256

        b7fb683bbb4c444b7121ad4cb00a4b8f247ea32ee367a4d0bc6ea05e6803c45f

        SHA512

        321e777413ee96dd05b3c412fd90b0e78ea8a9550a8d7af27d7a1530302833c97eb7e41b018e7bb89e82c8987e2527094b88ac94b74a3b5cc4b8bea1a0ef287e

      • C:\Users\Admin\AppData\Local\Temp\7d3e5551\nk.x64.dll

        Filesize

        389KB

        MD5

        7cd46176b71eda0ecb89413ed185e606

        SHA1

        58f24d30eb5251a553ec7dac81f3fc2398e3e63e

        SHA256

        b959f8550304467338e0b2975acf36b6c530e575d3cc6847f82fa7576fb86bb7

        SHA512

        217eee22ebf8ca536e49378a6c831f71e0bdf6ef637d14395e8e765a9f2e1b98bbda0a9bf273592dc9665d9e63f72aa58fd9dbd66ede56f8855ee500c67becdd

      • memory/3036-152-0x0000000000000000-mapping.dmp

      • memory/4676-132-0x0000000000000000-mapping.dmp

      • memory/5112-149-0x0000000000000000-mapping.dmp