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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03/07/2024, 02:48

General

  • Target

    91ab8f3f8f9d99ad59f99299e1cf858e.exe

  • Size

    7.3MB

  • MD5

    91ab8f3f8f9d99ad59f99299e1cf858e

  • SHA1

    bd33293c34ec4d98a746268053213a37d483ec47

  • SHA256

    f7c675eff00556242cfff8bc446fe407211a689d487252490c005567d1fde390

  • SHA512

    ee4ce887180b7aa9186fc8359c8e6cd7ca490cdab401f16b72f9e1c1664a21536c95a0c59658c36bd674fddc20e0ca96f1e277f54118d7a4fae31fe4c855a82d

  • SSDEEP

    196608:zvFsitNvy4TuJfkPd1+RL+MEp1sjw/2Qw:TF1KW5PTKLw1sjwDw

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\91ab8f3f8f9d99ad59f99299e1cf858e.exe
    "C:\Users\Admin\AppData\Local\Temp\91ab8f3f8f9d99ad59f99299e1cf858e.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Users\Admin\AppData\Local\Temp\B7wnIR4tiF5evtB.exe
      C:\Users\Admin\AppData\Local\Temp\B7wnIR4tiF5evtB.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\config\chocolatey.config.backup

    Filesize

    809B

    MD5

    8b6737800745d3b99886d013b3392ac3

    SHA1

    bb94da3f294922d9e8d31879f2d145586a182e19

    SHA256

    86f10504ca147d13a157944f926141fe164a89fa8a71847458bda7102abb6594

    SHA512

    654dda9b645b4900ac6e5bb226494921194dab7de71d75806f645d9b94ed820055914073ef9a5407e468089c0b2ee4d021f03c2ea61e73889b553895e79713df

  • C:\Users\Admin\AppData\Local\Temp\logs\chocolatey.log

    Filesize

    4KB

    MD5

    b0933812adef57292b419d2b5254a7d5

    SHA1

    39a8a0a36e56228db0b9b308b83823be84a432ee

    SHA256

    f3905990329465db7cbdb1a389592deff7eeaa8af3c4da1728095fc0c3c3e9bf

    SHA512

    0bb22ada0a1be3f8682cf4161a33eabdc54c785261e560ee53625d5d4d36af273c414150983a8023f0e929ed9369993a59a04e75eddc19d0ebf2257c45bd1764

  • C:\Users\Admin\AppData\Local\Temp\redirects\cpush.exe.ignore

    Filesize

    2B

    MD5

    81051bcc2cf1bedf378224b0a93e2877

    SHA1

    ba8ab5a0280b953aa97435ff8946cbcbb2755a27

    SHA256

    7eb70257593da06f682a3ddda54a9d260d4fc514f645237f5ca74b08f8da61a6

    SHA512

    1b302a2f1e624a5fb5ad94ddc4e5f8bfd74d26fa37512d0e5face303d8c40eee0d0ffa3649f5da43f439914d128166cb6c4774a7caa3b174d7535451eb697b5d

  • C:\Windows\CTS.exe

    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25

  • \Users\Admin\AppData\Local\Temp\B7wnIR4tiF5evtB.exe

    Filesize

    7.3MB

    MD5

    dd6b75a77601d62ac66df1b0a51a7de3

    SHA1

    699fc35deccb0cd6e341420903fc993535c2c98f

    SHA256

    2f46a1d48e1589e0aa10f215e77cb48fb90c531e19aa3c05d766f59b449f3c15

    SHA512

    43bd57e5379c22494aade734a45a443722327d48c7f06aa521048c99adba576e29bd70bba7bd28ba94f8f24f88efed7b8e5a1b3249cbfcb4d95fd0bc1f424d86

  • memory/2488-17-0x000007FEF5753000-0x000007FEF5754000-memory.dmp

    Filesize

    4KB

  • memory/2488-18-0x0000000001110000-0x0000000001856000-memory.dmp

    Filesize

    7.3MB

  • memory/2488-19-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

    Filesize

    9.9MB

  • memory/2488-27-0x000000001C370000-0x000000001C652000-memory.dmp

    Filesize

    2.9MB

  • memory/2488-153-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

    Filesize

    9.9MB