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Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2024, 13:54

General

  • Target

    7a6cba1a259be59b2a986e31375d2a73.exe

  • Size

    29KB

  • MD5

    7a6cba1a259be59b2a986e31375d2a73

  • SHA1

    b6dd516cb9114789fa3f5e025623717597fcb6c9

  • SHA256

    8c4840972d3fa611898c849098e8420af9599ddbc8ac3708419613b710388d9a

  • SHA512

    f75d9fa57dfad9016d28bcb0594c1e5374685a3019cc7c0dc989433b4a490ceb3acba7d39f95d2fa0519845c5ce4bb61930d1d87a31a375392c267f0e2d62edd

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFMl:SKcR4mjD9r823FA

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.

  • UPX packed file 6 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe
    "C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4472
    • 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:3084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    352KB

    MD5

    1cbe3f45979391cbb5b9762b18376d1b

    SHA1

    176178af24ded86a221f8d6aae33ef09ca1c7915

    SHA256

    374b25d5e0b17cd013ff190d5ddffd4b9365104988d613c9bb89bfd3310e41d6

    SHA512

    21637f739090baf3916d04736f769bafe70458ed949ad5dd96085e66d2b1925ab0b057e1ca82841b113a89da5082542eb32cd6360752d616940c282744da4cae

  • C:\Users\Admin\AppData\Local\Temp\zBQH8OgUnhVg91i.exe

    Filesize

    29KB

    MD5

    9241aa7c8ebdd885efaa01c80bf8b28f

    SHA1

    db63929d5967da66b03eb926107b88dc06c6ec55

    SHA256

    736cd9a3d09d61b041541115cb5e6ab8beee69c51590428ba3595c4e88f3eb34

    SHA512

    8cba743d55ad0786916aca5a4244a014cef11fc1cd734e7628fc8519971f45540778eb609f8c9673de8eac546cf28027762d5484bdb494d5b1d1f23c947fc8e4

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/3084-9-0x0000000000BF0000-0x0000000000C07000-memory.dmp

    Filesize

    92KB

  • memory/4472-0-0x0000000000690000-0x00000000006A7000-memory.dmp

    Filesize

    92KB

  • memory/4472-7-0x0000000000690000-0x00000000006A7000-memory.dmp

    Filesize

    92KB