Analysis

  • max time kernel
    31s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 19:36

General

  • Target

    c40c2c6cab9e303b00f5c453b56ae8079f769df819f2b6d4e386e44d155037fe.exe

  • Size

    2.5MB

  • MD5

    876dd8f46ee1cba676ce60175c20c52b

  • SHA1

    41a421251fbf5348b82b905dfde83ab9c741b5f7

  • SHA256

    c40c2c6cab9e303b00f5c453b56ae8079f769df819f2b6d4e386e44d155037fe

  • SHA512

    a47708aa3d936a1745594764a2a56b3a239eb45fb485c7f3258e97da41d6cfc993c66f7ec8f9d142159f033309367a9881681ad25172a1cb1782e5615fa047fc

  • SSDEEP

    49152:h1OsFsNQH0eNGTTOxTnkSM1XN+QMz3p6bOkAk+YetEW6FOCMwEFhjzdUwe:h1OSH0eNGunkt3+1z3p6iVCl

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 11 IoCs

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

  • Drops file in Program Files directory 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c40c2c6cab9e303b00f5c453b56ae8079f769df819f2b6d4e386e44d155037fe.exe
    "C:\Users\Admin\AppData\Local\Temp\c40c2c6cab9e303b00f5c453b56ae8079f769df819f2b6d4e386e44d155037fe.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:884
    • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\uMMj6HEnxtWDDv8.exe
      .\uMMj6HEnxtWDDv8.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops Chrome extension
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32.exe /s "C:\Program Files (x86)\GoSave\nXbwbHrsWWkyMb.x64.dll"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1200
        • C:\Windows\system32\regsvr32.exe
          /s "C:\Program Files (x86)\GoSave\nXbwbHrsWWkyMb.x64.dll"
          4⤵
          • Loads dropped DLL
          • Installs/modifies Browser Helper Object
          PID:1364

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Browser Extensions

1
T1176

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\GoSave\nXbwbHrsWWkyMb.dat
    Filesize

    6KB

    MD5

    c006e2b68d4185ae7d54b151246f58d4

    SHA1

    61fec617c84ed17e255d69584bba007a3f5d6973

    SHA256

    644d8fe5170c1a98e104cf8d128e7b0ebaa692c0bbfbf3b25acb4cc255c4f5de

    SHA512

    01f1a8f28a4826d95e5259cdba5b13b6a1ec12411e8a8fd45c52e972f84a487aba397d84a4d7b9c9681c49a8e1d5d7c42a81d2e1c7a6173a77eb8fa17bacceb3

  • C:\Program Files (x86)\GoSave\nXbwbHrsWWkyMb.x64.dll
    Filesize

    891KB

    MD5

    bef492ffc032769cde00802f48a17fab

    SHA1

    a91e733c1269eb785f8e23dc475acac7432f0563

    SHA256

    473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

    SHA512

    4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\dblinoemocgkdninkcbmjllfghhcfmid\EQAdq.js
    Filesize

    5KB

    MD5

    8b6c47d491912f49ad20ead521c01181

    SHA1

    64e6a8a3372978af682f2e47c5729d147ddfdbc6

    SHA256

    615be935561801b78238fbb558f6b79a2fd2fe6b5966d5beb93910bf5b21699d

    SHA512

    1fe909d1e0061d6b11eccc4a7171f134f2fdc2260fa7b8b6fb78dc5e9df18fbdbaba3539be78d348fa527167f458e9d6e85ce39f23cec8e5cb31988c2f78fa05

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\dblinoemocgkdninkcbmjllfghhcfmid\background.html
    Filesize

    142B

    MD5

    039ffd12ce57a9b8a2d9d2bec9518327

    SHA1

    2b49beaacf54c9850942742a320c48cbc699f4db

    SHA256

    ce668a43e7c2545c9915c80794f1c9b9757d0565dd90441146c7616943867edb

    SHA512

    d05a624e1eecb762b45476e28f58d4728abd72db11e44245249af3de694dd5e197c6642ad94a1e5cb588debf1987d58071c101a5f872c9f33e2d56ee418888a7

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\dblinoemocgkdninkcbmjllfghhcfmid\content.js
    Filesize

    144B

    MD5

    fca19198fd8af21016a8b1dec7980002

    SHA1

    fd01a47d14004e17a625efe66cc46a06c786cf40

    SHA256

    332b00395bc23d4cb0bf6506b0fbb7e17d690ed41f91cf9b5d1c481cb1d3e82a

    SHA512

    60f4286b3818f996fab50c09b191fbc82ed1c73b2b98d00b088b5afbbc0368c01819bd3868bd3c6bcb2cd083b719e29c28209317c7411213a25f923cfc1f0e47

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\dblinoemocgkdninkcbmjllfghhcfmid\lsdb.js
    Filesize

    531B

    MD5

    36d98318ab2b3b2585a30984db328afb

    SHA1

    f30b85fbe08e1d569ad49dfeafaf7cb2da6585a5

    SHA256

    ea2caf61817c6f7781ee049217e51c1083c8fc4f1e08e07792052dfdfa529ae7

    SHA512

    6f61ccda2eba18369409850b2c91c9817fc741755e29a1579646e3816e0deab80e34a5adb9ff865c773793d32ac338163a224dbf363b46420d6ea42a7bbb2b3a

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\dblinoemocgkdninkcbmjllfghhcfmid\manifest.json
    Filesize

    498B

    MD5

    640199ea4621e34510de919f6a54436f

    SHA1

    dc65dbfad02bd2688030bd56ca1cab85917a9937

    SHA256

    e4aa7c089e32d14ddf584e9de6d007ec16581cd30c248ff7284bc0eb7757d4af

    SHA512

    d64bc524d6df7c4c21a5ddfb0e6636317482ef4dc28006bd0a38d5e26c2db75626f216143026bf8acf3baa11d86c278e902c78afad4f806ca36f9e54bc75ff0a

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\[email protected]\bootstrap.js
    Filesize

    2KB

    MD5

    df13f711e20e9c80171846d4f2f7ae06

    SHA1

    56d29cda58427efe0e21d3880d39eb1b0ef60bee

    SHA256

    6c325461fba531a94cf8cbdcfc52755494973df0629ce0ee3fef734ab0838fc4

    SHA512

    6c51cee3bf13f164c4a5c9884cc6053cbf9db9701d34c07dc5761d2c047d3d1f7a361b32996a430107e9a4ce68a29149d747a84c76778a1e8780719a3d30470e

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\[email protected]\chrome.manifest
    Filesize

    35B

    MD5

    53b8a7d575773567fe10f00dd2851be5

    SHA1

    f82c15d0fd4275e974cc40a1ca892d855152434e

    SHA256

    6043fc073d094cd11b662265ac4ae570c490f13b2af529b1fba8bfb6ebd4ccc8

    SHA512

    ed44ec8e66744241c44d8865b6cbcc517814618c6b2a0893cae652b31d57222653309919c6beda8516874c21049aa1e2f195a8bb56a1df323589b93c819ea1a7

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\[email protected]\content\bg.js
    Filesize

    7KB

    MD5

    63c9021274e20710f98706b60cd5f068

    SHA1

    adf38a8bb0391fa7d3194ae3ce24116b81aabc1d

    SHA256

    2fc4ef4c1b7cb864401d1989b9bdffb6a09c83aa710ea83a2e985676154cfddb

    SHA512

    92fec6c369221a65a2722b3fb5b61aa5e48b5687f116f2d61480c176fa4a728a3e78e3682df7096fa1b5c3aa17e5b9dc217ad92097e8f5a254e104b7c33035b3

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\[email protected]\install.rdf
    Filesize

    595B

    MD5

    69e3e21e1ae09b8d4dd5f839bd370bb5

    SHA1

    220bd77e257a387fde084271168acbb51b97b496

    SHA256

    16bcecfeb65bd5486abe73646996fc5cc7d0237c883822eb711aad3bcc989155

    SHA512

    e5c9f5d7174aad66a607eb6625736258db9ccaa7b1cccb2bb2022ab57526f5d50d6f3ee56210e4fdab851fd80660fbc857698531f4743c38ec28638270bc192e

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\nXbwbHrsWWkyMb.dll
    Filesize

    754KB

    MD5

    0ea14ffbf9bc129f87d5a633ca028a12

    SHA1

    c91e00a9d6590556a4c13a46cb6c934f84cf2b2b

    SHA256

    9206058e3e04af4fb8d5c05ae8f088cf0a289ea0e4cd692c4f2d76439adb0d47

    SHA512

    0cfd075335346690ead8c5aef2340b56ce07c59d6243ad102fee0053d64f1a7847e56ba27f5bbcac4048f2c1cf70038e7cdffafe1cc28994603fdd65d2bf7bb2

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\nXbwbHrsWWkyMb.tlb
    Filesize

    3KB

    MD5

    4ab2bba691d66beca01f76ac65546fe8

    SHA1

    16f05ce91f3e2fe4b43452e24d56836fc65615af

    SHA256

    12816936003f13a1711de73328e38f311926a4cc9d1a836f46c9ccc02b6fb06f

    SHA512

    f034390bfd57618bbfd218c3df9e465dda8f4fa51fc0445c74e246472a4cde2bc0bfe4607cbc8cb31ac0edff62a84e954179fadddc2b644b8726cfa3e01694a2

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\nXbwbHrsWWkyMb.x64.dll
    Filesize

    891KB

    MD5

    bef492ffc032769cde00802f48a17fab

    SHA1

    a91e733c1269eb785f8e23dc475acac7432f0563

    SHA256

    473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

    SHA512

    4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\uMMj6HEnxtWDDv8.dat
    Filesize

    6KB

    MD5

    c006e2b68d4185ae7d54b151246f58d4

    SHA1

    61fec617c84ed17e255d69584bba007a3f5d6973

    SHA256

    644d8fe5170c1a98e104cf8d128e7b0ebaa692c0bbfbf3b25acb4cc255c4f5de

    SHA512

    01f1a8f28a4826d95e5259cdba5b13b6a1ec12411e8a8fd45c52e972f84a487aba397d84a4d7b9c9681c49a8e1d5d7c42a81d2e1c7a6173a77eb8fa17bacceb3

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\uMMj6HEnxtWDDv8.exe
    Filesize

    774KB

    MD5

    fac681323e2e0ea322ef16fa551cf1e8

    SHA1

    744f89e591a6ced737cfe9214ce09c263de50211

    SHA256

    537f2df71a2f21f943a39d1c6d093a442e7ee975ed3e29b733b8bc5bf646793c

    SHA512

    22626bd0e79edac062b61d64234f563e3a8218703276a19a0b01749e2cad8387c8bd39bfe13810b787fb9e4c7f1669ea542e36bbf63c7c243fc68bb6fdf5c7b2

  • C:\Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\uMMj6HEnxtWDDv8.exe
    Filesize

    774KB

    MD5

    fac681323e2e0ea322ef16fa551cf1e8

    SHA1

    744f89e591a6ced737cfe9214ce09c263de50211

    SHA256

    537f2df71a2f21f943a39d1c6d093a442e7ee975ed3e29b733b8bc5bf646793c

    SHA512

    22626bd0e79edac062b61d64234f563e3a8218703276a19a0b01749e2cad8387c8bd39bfe13810b787fb9e4c7f1669ea542e36bbf63c7c243fc68bb6fdf5c7b2

  • \Program Files (x86)\GoSave\nXbwbHrsWWkyMb.dll
    Filesize

    754KB

    MD5

    0ea14ffbf9bc129f87d5a633ca028a12

    SHA1

    c91e00a9d6590556a4c13a46cb6c934f84cf2b2b

    SHA256

    9206058e3e04af4fb8d5c05ae8f088cf0a289ea0e4cd692c4f2d76439adb0d47

    SHA512

    0cfd075335346690ead8c5aef2340b56ce07c59d6243ad102fee0053d64f1a7847e56ba27f5bbcac4048f2c1cf70038e7cdffafe1cc28994603fdd65d2bf7bb2

  • \Program Files (x86)\GoSave\nXbwbHrsWWkyMb.x64.dll
    Filesize

    891KB

    MD5

    bef492ffc032769cde00802f48a17fab

    SHA1

    a91e733c1269eb785f8e23dc475acac7432f0563

    SHA256

    473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

    SHA512

    4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

  • \Program Files (x86)\GoSave\nXbwbHrsWWkyMb.x64.dll
    Filesize

    891KB

    MD5

    bef492ffc032769cde00802f48a17fab

    SHA1

    a91e733c1269eb785f8e23dc475acac7432f0563

    SHA256

    473507950695ec743b98e5ef4b8970b2c7e6936556903c94f7fa88917265255d

    SHA512

    4f61d5f3a45d20cd00ed7ee6b874bf2dcbf248b8f65dfd8580c7148d6c71c316cace409be675a2ea919e8a12caf8690fafaf14c0f5479df55689401d2432afa0

  • \Users\Admin\AppData\Local\Temp\7zS2DB6.tmp\uMMj6HEnxtWDDv8.exe
    Filesize

    774KB

    MD5

    fac681323e2e0ea322ef16fa551cf1e8

    SHA1

    744f89e591a6ced737cfe9214ce09c263de50211

    SHA256

    537f2df71a2f21f943a39d1c6d093a442e7ee975ed3e29b733b8bc5bf646793c

    SHA512

    22626bd0e79edac062b61d64234f563e3a8218703276a19a0b01749e2cad8387c8bd39bfe13810b787fb9e4c7f1669ea542e36bbf63c7c243fc68bb6fdf5c7b2

  • memory/884-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
    Filesize

    8KB

  • memory/1200-73-0x0000000000000000-mapping.dmp
  • memory/1364-77-0x0000000000000000-mapping.dmp
  • memory/1364-78-0x000007FEFB731000-0x000007FEFB733000-memory.dmp
    Filesize

    8KB

  • memory/2004-56-0x0000000000000000-mapping.dmp