Analysis

  • max time kernel
    136s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2024 11:23

General

  • Target

    $TEMP/dospop.exe

  • Size

    437KB

  • MD5

    b2347a5c2350b6342cdabda956618759

  • SHA1

    f6a779efafcf4bd6a9e1f8bf2c66af33f140622e

  • SHA256

    9240b45f226db49da56c7b12b7a347eaee578cfc0e4603019091a1fd81bfcafb

  • SHA512

    76468bda8a4e0df0bf49efdf6cf96d3f45a85db73540e066cc156ca0481d676606d46f3b98774395914c4f357d752c9bbae6e41f9277bc362dd712bd430eda04

  • SSDEEP

    12288:WGeC/oEjVcYKKrh/RfKum6YGBzz9QJWCqoRFf:8CNjVcNKrnVm6vBzBCqoH

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 7 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in Program Files directory 29 IoCs
  • Modifies Internet Explorer settings 1 TTPs 7 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\dospop.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32 /s "C:\Program Files (x86)\DosPop Toolbar\dospop.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies Internet Explorer settings
      • Modifies registry class
      PID:2672

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\DosPop Toolbar\RSSReader_plugin.dll

    Filesize

    260KB

    MD5

    131fa8aaa9f5e717477d6e16c6f8fb70

    SHA1

    17e50467e224d7461c46a456442f10a0da3cc7ec

    SHA256

    efb9b1707ca2447c63036b1074c402f8ff6a5f30441c03ea372d1f0ec8423bc5

    SHA512

    d87a6789aec7574c4888e4a6da3c7776e937b62ab481e2aa874752d71854b32a9ad2814321cb24da1f1b134e3b443be4474fbfb09335e06349862151beccd32e

  • C:\Program Files (x86)\DosPop Toolbar\basis.xml

    Filesize

    11KB

    MD5

    5c2f5edec42b592cdf320560602566f9

    SHA1

    cf0725203afc620590ef0ba06b23f83895c2a9e1

    SHA256

    e5e25d47c991d1b7582de5cb41427b4f58bbb72d67c208829dba6a52b40e9a27

    SHA512

    699f2982f9fa7afd3520c3afbde55bbda2e40b6d1043f325e9611db1639092fe2fa4df08f3735541409a17577e30af345ec0f5a73c6e868c9a02fcd9a71bcfda

  • C:\Program Files (x86)\DosPop Toolbar\dospop.dll

    Filesize

    872KB

    MD5

    c97179ba4ed0491d227335ffebdc856a

    SHA1

    6de5da7bf23ec5e519a9068817cd26890c1a8930

    SHA256

    7e333107d1b5d943b9ad2a52625b02d28d79be60734e2d77a8ed2c7335214632

    SHA512

    bc2eb7c9c939907e7390530722b722aefc7e59a06d59187d9cbb9b9678d2209f484d53b0e3c22337026c4ae6b8c619a53ccd0505612f5ab6b456ec204a4b2265

  • C:\Program Files (x86)\DosPop Toolbar\tbhelper.dll

    Filesize

    180KB

    MD5

    bd60d9ff3cfc8ce202063f75eb817780

    SHA1

    27f7e3d852ca84223f2a4b48a5a6f8fbca11dfbf

    SHA256

    3f56aa185c36a69557a87633def1b291bc7e61064e4ee51483e7b6a2659bb51c

    SHA512

    2946d94e697d02c6d25e9daa7b7f18430a6ba597f9f0ce082296b57e28821d2199aab92ed14c58a95a2fa80824c800ab968fc88797d0f0cf1839befb04518155

  • C:\Program Files (x86)\DosPop Toolbar\version.txt

    Filesize

    49B

    MD5

    f1610ba6a619c1703c4dd4ea1c8d71e5

    SHA1

    539d1b8b903d98bd9abaf232b4c2f370ac1e9e81

    SHA256

    0f85f776d85b5ee164a43c166dab525625655bd42b6c0503fa8d36fb702df666

    SHA512

    de5058badc73c1e267e24d7cd18e2c1207337d78185bcd17c4e1ab1131e30f4df5c051cceb748966fd4a8a6b8b2f1d11e2ced29bf5c5ca8404e3f5da5d2d438e

  • memory/2672-22-0x0000000002560000-0x0000000002590000-memory.dmp

    Filesize

    192KB

  • memory/2672-28-0x00000000025A0000-0x00000000025E4000-memory.dmp

    Filesize

    272KB