Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 19:30

General

  • Target

    c665fa446b2a9c6ed7386339c3619bc3770969d13258457126dae591ac4acabf.exe

  • Size

    931KB

  • MD5

    4eabb210765036c2d32f9921168d6351

  • SHA1

    ad75235ad206168777d607bf5fe3e19e4a44589e

  • SHA256

    c665fa446b2a9c6ed7386339c3619bc3770969d13258457126dae591ac4acabf

  • SHA512

    622b34c3eb137b19e2f26e7fbe28adb062f4027d5767d51da8428d586d94226994d64a56dde7b90426395432879adbb09a5c0b2f420df096f09ef110f4006b5d

  • SSDEEP

    24576:h1OYdaOYCZ/iWCvu/2sWsJA/jlt+DHhss:h1OsCCpYO/dJJDHhss

Malware Config

Signatures

  • Executes dropped EXE 1 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
  • Drops file in System32 directory 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c665fa446b2a9c6ed7386339c3619bc3770969d13258457126dae591ac4acabf.exe
    "C:\Users\Admin\AppData\Local\Temp\c665fa446b2a9c6ed7386339c3619bc3770969d13258457126dae591ac4acabf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4664
    • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\R3HnJwxrKiKB8Ua.exe
      .\R3HnJwxrKiKB8Ua.exe
      2⤵
      • Executes dropped EXE
      • Drops Chrome extension
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4588
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:4932
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:5100

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\KcM@a.edu\bootstrap.js
        Filesize

        2KB

        MD5

        df13f711e20e9c80171846d4f2f7ae06

        SHA1

        56d29cda58427efe0e21d3880d39eb1b0ef60bee

        SHA256

        6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

        SHA512

        6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\KcM@a.edu\chrome.manifest
        Filesize

        35B

        MD5

        8f978430fca9f826ebf9d1cd04a22550

        SHA1

        035c42978657328983dd0230c1e2b945c6752f74

        SHA256

        b80e02873e33b2288e9e31c2a969078816d96120648b3d93415d6932ed7409b4

        SHA512

        bc2ac34f2b6e892919a6962d6c9b042fc1885e487b2d7fe7d983115508f8c60fbe7f3cc35d6d97808216e0ae9c8b1cc73cd3ea816d8ebbc7464f212bd5651ad5

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\KcM@a.edu\content\bg.js
        Filesize

        8KB

        MD5

        60a7fa1cace5a2c5763a4e714c6521a7

        SHA1

        6383fa058733e955b2a5368370b022bcb0d87d8f

        SHA256

        c383c7bc9946dc2216ace079608381e32439425d3c301bd5bc3df0abde0a4ca7

        SHA512

        98977122a2956917fc57c7de77d2743174a9afab6684a259038db138a1726703a1392fb7cc87aa6c2e82407a28f56e9de1cfe91efddd3ac77f133f0c05c9a693

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\KcM@a.edu\install.rdf
        Filesize

        591B

        MD5

        97309ea98f3b6776125b31ff2c7c2503

        SHA1

        19e53e95b9e8eee4db38330d83a4143804942d4b

        SHA256

        9c030e53486e2e9773d5c0ec8a56eaab092a6d3e595b3218bc42ed2d85fc9255

        SHA512

        77f077a31b0ce93fa85538c881ddb634328d54d2253d5e39567fc6e37a42ed46f13b046812c2ae96739def8812129cc561929b64dee95e870d0ac939c8b6463d

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\R3HnJwxrKiKB8Ua.dat
        Filesize

        1KB

        MD5

        88faba2bc9e87de1a397becb00e16ebc

        SHA1

        a6ae26d4935aa7cd9dd87cb077c496ee1ad0ee4e

        SHA256

        ed99b19f45fabb09781fcf764d54d657c8cc19ea6512e468156c82594c22c3d8

        SHA512

        f0ce8a736e46a22d64f407bdeaa585e2a79c43f3c81dd967e796a79fa4b794cfb3163758e0074839f754ecda89c3662d0de3ac3b5b418b8eb66b8e72a552811c

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\R3HnJwxrKiKB8Ua.exe
        Filesize

        772KB

        MD5

        5ed7019dcd0008dbcd8e54017b8c7dd9

        SHA1

        7e4457da2ff06c2170bad636c9eb7c1bb436fd06

        SHA256

        7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

        SHA512

        10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\R3HnJwxrKiKB8Ua.exe
        Filesize

        772KB

        MD5

        5ed7019dcd0008dbcd8e54017b8c7dd9

        SHA1

        7e4457da2ff06c2170bad636c9eb7c1bb436fd06

        SHA256

        7f069fe03db518eee8162ba5f65f98f2afd28137dfde9450d26cd47f6cea8eb7

        SHA512

        10cef6104aeca8f7a135d4ffffb907b127f055477af4d98228c7385f0da15677357dfed13fc442ee173f85245224fc4b0ae100b832514c80802c5e5a054b70db

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\pmmfgakbbbdljihhcahecbfpclfeaiom\background.html
        Filesize

        143B

        MD5

        eabc01b53e3c52a2954d27ca581f4ec4

        SHA1

        6b516785b3663a513892ea152c2d641eff1a7271

        SHA256

        edfd1f34e455047b43bb18a2894ab27ea88e05d9d29c9e7494e99e3b3d3b3a89

        SHA512

        4babb45b0c78edd8f30408c1ca985fa9625b4ac51f6f0c37b7b5938f059d8cb51129a771fe7c01cc64c286cc984c24f3554c4cde86e60bb1d20746b749360b59

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\pmmfgakbbbdljihhcahecbfpclfeaiom\content.js
        Filesize

        144B

        MD5

        fca19198fd8af21016a8b1dec7980002

        SHA1

        fd01a47d14004e17a625efe66cc46a06c786cf40

        SHA256

        332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

        SHA512

        60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\pmmfgakbbbdljihhcahecbfpclfeaiom\cxFZtb.js
        Filesize

        6KB

        MD5

        3bf478688e361d2bdf2d6ed08a797925

        SHA1

        06689b7b0c95ef7bc837617e93f48dc508ee5e87

        SHA256

        bbda4cde6861bb80704213438c6128997e51f3fe03226d5e6f09633e0ce63dd5

        SHA512

        41430429db402f7940eaf0d2be204ff315d08570b16aa1d7319cee0653cb22f3bfeb6615aa77c5d0e67dfb736af71ee5a755e4bf6c05f06bbd9b8002cda51d6c

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\pmmfgakbbbdljihhcahecbfpclfeaiom\lsdb.js
        Filesize

        531B

        MD5

        36d98318ab2b3b2585a30984db328afb

        SHA1

        f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

        SHA256

        ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

        SHA512

        6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

      • C:\Users\Admin\AppData\Local\Temp\7zS67D7.tmp\pmmfgakbbbdljihhcahecbfpclfeaiom\manifest.json
        Filesize

        498B

        MD5

        640199ea4621e34510de919f6a54436f

        SHA1

        dc65dbfad02bd2688030bd56ca1cab85917a9937

        SHA256

        e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

        SHA512

        d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

      • memory/4588-132-0x0000000000000000-mapping.dmp