Analysis

  • max time kernel
    141s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2023, 23:29

General

  • Target

    1c8b151ea43c86b9326fdd32c1c12f5313c817d84df2d832821e66fe0fb11552.exe

  • Size

    25KB

  • MD5

    106b558d1b009c2362d1093cad229aa4

  • SHA1

    d036076efc439a8dc1081c47423e09f574238fa2

  • SHA256

    1c8b151ea43c86b9326fdd32c1c12f5313c817d84df2d832821e66fe0fb11552

  • SHA512

    573eaaa0614f4863f6f3910f05ee66ffead9991e78c1469ef88e0ea2878e6cced6902e92a82d619e639e5ad5d9128df91d189f955b0f4338090216c7c67d713c

  • SSDEEP

    384:qc0J+vqBoLotA8oPNIrxKRQSv7QrzVVvOytGxboE9K/mKHrjpjvqB:8Q3LotOPNSQVwVVxGKEvKHrVqB

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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c8b151ea43c86b9326fdd32c1c12f5313c817d84df2d832821e66fe0fb11552.exe
    "C:\Users\Admin\AppData\Local\Temp\1c8b151ea43c86b9326fdd32c1c12f5313c817d84df2d832821e66fe0fb11552.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3360
    • C:\Windows\spoolsv.exe
      "C:\Windows\spoolsv.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      PID:320

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

    351KB

    MD5

    0c278c6a15a7bd9d70f08378a0e52c83

    SHA1

    62871d04df237b07fc00dea7e2e17756ba1f2ab2

    SHA256

    1db3400e537a5e3995daa3b7ccd6d40610bc4ab662cfb9398901ee9ff9e7e809

    SHA512

    3672f960170071a0bd170fcd7983bf2feac801029fc7acbf8d2c6e5ba8445598faee742ea3b592dee1b159d95f080ff44d2c6fdf8edd70bd81b928ce8cce2eee

  • C:\Users\Admin\AppData\Local\Temp\slBwo13kw6gzkki.exe

    Filesize

    25KB

    MD5

    a08fe85984c096805512a065401c5b11

    SHA1

    adbcb482d83648047ed5326bfa59c94b31e8c852

    SHA256

    6c88f4cdca9e1150b052cc374ed540d1f0c24b30083af54dea47a49c2e106b31

    SHA512

    70725e1bde4e0f2cb0df1423e9ef8e97175e7a01ea66c508a4042d1ab9b333193701e4eb34ad567a91aaafd176f7e68df033653f6b4571f2cdacdeda1f2a97bf

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb