Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-01-2024 06:20

General

  • Target

    5832efb232bae2eab5cc20173ccc87dd.exe

  • Size

    46KB

  • MD5

    5832efb232bae2eab5cc20173ccc87dd

  • SHA1

    fff2b9e0a82bcde6973c8484b452710050d08e75

  • SHA256

    1cbc7acacc98c1a212fb493785b1e5094f39e35349015faa59cae9eb1542d59f

  • SHA512

    b22bc04cc847e58063ebb0bbc84186853d6ee2dca765b06342d10e9f14973b01ef121e1a66573b2e0cb40377fc924958f2112a609c051ac15ffb2a90b304ed5b

  • SSDEEP

    768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFwyRZ2kxPkd3kNNvJQYW:SKcR4mjD9r823Fcakd3WNvJo

Malware Config

Signatures

  • Executes dropped EXE 2 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 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5832efb232bae2eab5cc20173ccc87dd.exe
    "C:\Users\Admin\AppData\Local\Temp\5832efb232bae2eab5cc20173ccc87dd.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4616
    • C:\Users\Admin\AppData\Local\Temp\taO6B5MDAoEP4sO.exe
      C:\Users\Admin\AppData\Local\Temp\taO6B5MDAoEP4sO.exe
      2⤵
      • Executes dropped EXE
      PID:3264
    • 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:2116

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

    2558c396d0a35086a353fe890bc95794

    SHA1

    65cbde3e4d43c25ff0728c61a5c1bf36d87d81c6

    SHA256

    3079f4f2c0367982dd4eb53d27415806c871d3d3a362f42d846d1666a0a5937d

    SHA512

    34451071eddbce84c37b2a21db482a083d063d89888972e797adfb450c31995e78278b8841aeed7d4a3350380e4eae7e3787e053b915aea7a5c07cb56bb72987

  • C:\Users\Admin\AppData\Local\Temp\taO6B5MDAoEP4sO.exe

    Filesize

    16KB

    MD5

    95c9a037d3b01a21275aa6cc73b122a2

    SHA1

    c19ed8afc95b91d0cc6bc075047de30eae015386

    SHA256

    1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523

    SHA512

    761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

  • C:\Windows\CTS.exe

    Filesize

    29KB

    MD5

    70aa23c9229741a9b52e5ce388a883ac

    SHA1

    b42683e21e13de3f71db26635954d992ebe7119e

    SHA256

    9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

    SHA512

    be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

  • memory/2116-9-0x00000000009D0000-0x00000000009E7000-memory.dmp

    Filesize

    92KB

  • memory/2116-31-0x00000000009D0000-0x00000000009E7000-memory.dmp

    Filesize

    92KB

  • memory/4616-0-0x0000000000F60000-0x0000000000F77000-memory.dmp

    Filesize

    92KB

  • memory/4616-7-0x0000000000F60000-0x0000000000F77000-memory.dmp

    Filesize

    92KB