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Analysis

  • max time kernel
    62s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/10/2022, 16:35

General

  • Target

    4381f206e57b909b1e0e47284bfce0cec1ba0d513bf92d438aea225150598b87.exe

  • Size

    251KB

  • MD5

    8352fb64c62c98d5c196c8b1f18919dc

  • SHA1

    4beafbdaa2dbc8238784eadfd11a60117fc9e38f

  • SHA256

    4381f206e57b909b1e0e47284bfce0cec1ba0d513bf92d438aea225150598b87

  • SHA512

    46d000b067f0574b3aa0f25c2e9452aad91b21e55769762c64427546f2c079e28d5f6e627a64efdb9aaa460d79dabc9e51c5478555fec0d47d6d57b6e839fd58

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4s/LeKYDKhctX+Hidd7tTFLdRWOiTVT:91OgLdaMLejDKa1+2RFnXi9

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4381f206e57b909b1e0e47284bfce0cec1ba0d513bf92d438aea225150598b87.exe
    "C:\Users\Admin\AppData\Local\Temp\4381f206e57b909b1e0e47284bfce0cec1ba0d513bf92d438aea225150598b87.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\setup.exe
      .\setup.exe /s
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      • System policy modification
      PID:1156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wxDfast\bhoclass.dll

    Filesize

    139KB

    MD5

    4b35f6c1f932f52fa9901fbc47b432df

    SHA1

    8e842bf068b04f36475a3bf86c5ea6a9839bbb5e

    SHA256

    2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196

    SHA512

    8716b9a8e46933bf29348254a68d1a21392bdbbe3b4d5010e55fe638d02cc04eb685e424d440f7c5b58ffbca82e5772dd95bef73fa831595c2ae9599f3b05a99

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

    Filesize

    2KB

    MD5

    45ef3fd7a0a271a25309e3e53ff89021

    SHA1

    62c9c7630d31acd60f03dd3c0276cc1edf98a8fc

    SHA256

    ebab0953e71a77d5a6f87f1cdb39a6df3a15d87756514960c71b81c7a6ff19a3

    SHA512

    020c0872ac02db63ec36b2dd992647f9beed33c59679b91228a6b133908444acb04a8d86f2a1622c435235f65e43a61bfb18a4a4e5f0ad53b2b30f02a33771b4

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

    Filesize

    116B

    MD5

    17be9eede54fb9e41fa3f2ae7ede1a05

    SHA1

    effed1141f20483e9125bf942e20fa5400dee0f6

    SHA256

    f90da3f9a59cbb511356e5a3dee5f1ef7e4dba1e276e556ff246233c28b85f53

    SHA512

    b88917e6cce68dd7a2870329943fdce6f960f09268148795dfc75d225dea58aa744b459f9889a3b90e23726c9a171c1b206919b511f1473c22c2a831915fd2c3

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

    Filesize

    8KB

    MD5

    b79de8b057fec2da61e3aeb167d98656

    SHA1

    9dc727727d0cf8cd7db4483255f3f02ef1f4b09b

    SHA256

    3bd2b493516fb3b2bebf94053ddc8fb4906a52a823fa0a3f8bb3519ca315c562

    SHA512

    ffadec0c6052060db2ede6688421e4c4aa3c7628b6fe1740cfacda64f123934bbc5238ea95f60e099fe845ae3f08393ff38fad17747517ca83d196be2e08e2cb

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\[email protected]\content\zy.xul

    Filesize

    225B

    MD5

    4f163a1ccedb25a62960ed667c8337fa

    SHA1

    495f176fdfdc2c6e3c83bb694d337e17f3c64f6e

    SHA256

    50f234ef5bb7bc181ff957dd8d5f0364579af10dd327533eaa4aa66c7532e412

    SHA512

    1ba93b03304b524e65f8ea445fbaf62a0cfb0a4598ca3bd7d4a7b7dca32603260c0c590190b2eceadcfbdc4e45d0e0ee99082192cbddc356326be5fd028356da

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

    Filesize

    714B

    MD5

    ec75a822ebbd2798ea410e14e1fef04f

    SHA1

    bf029f4e44e577593c16ca3917c0a16250137324

    SHA256

    01796b5a2112b9905b94cad78e0227dfa4ff0efed72d9c18d7666eead9b7c170

    SHA512

    58e1fb7a28e69f982a9241fcd1faa3a588f8f6c27c7d088db44896f889a0fd6093bab78e6f508a6cd4298979a1f247e180b2c7123ad378c0133c2d390a3584f2

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\background.html

    Filesize

    4KB

    MD5

    dd990f813251aadcbaad58010fddd390

    SHA1

    f1f7a76dc678488663c0f4cd107acaaea1f899d3

    SHA256

    dd77023408d91cdd4dc096ab59de14046f934fa33064b05a828d348d18fb709f

    SHA512

    879abfc66a86543be7b0e4232ab54c9a091fb4a1f34c364d9aae06954a4d599d304c2076bb816b2a8f226548ecd6762eb327c83cf979df0848fba923fa00c001

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\bhoclass.dll

    Filesize

    139KB

    MD5

    4b35f6c1f932f52fa9901fbc47b432df

    SHA1

    8e842bf068b04f36475a3bf86c5ea6a9839bbb5e

    SHA256

    2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196

    SHA512

    8716b9a8e46933bf29348254a68d1a21392bdbbe3b4d5010e55fe638d02cc04eb685e424d440f7c5b58ffbca82e5772dd95bef73fa831595c2ae9599f3b05a99

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\content.js

    Filesize

    391B

    MD5

    596ac59bed5a95e4c51f9fb3650e2c2c

    SHA1

    a0012bbedab8cadf36477ced87ca14bac9774e77

    SHA256

    a4eaf0302cd46d662644620f200b8fe37d9b2e4b50e49b675638e425fa13ce99

    SHA512

    e191cd7353420488420b18e683d956dcb552c5a2fad2cf02d3ca87b83c232a51edfda3a16bb271e8b48b01976e1e5cccd8a8e1d629f1972d52d26e684d0dc79b

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\mgnkcaaclgejflagedcoapigninpgomo.crx

    Filesize

    3KB

    MD5

    a9ecd54058781eeca2a23e891781d1f0

    SHA1

    daa458c8aa1060430efd1c456aedfcd6a77eb577

    SHA256

    15b370c4f0c29ae7b42dccd9245fd8f042215c1980aa914ac4790029df4141bb

    SHA512

    d04cfe2684554d87e2bc118aef03c1def91779fefb1230f9359e77d99f56eb69ae2a7c369c6243dc941d9304a8d559d0f1a4a51d9ca02870b3d37a2bfa363e15

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\settings.ini

    Filesize

    660B

    MD5

    372796655b2b238160d63e93efa2baa7

    SHA1

    cafa3832740d47a85beb1db92caa9f20e95c4e58

    SHA256

    d724d260e897f5c94f6cc738e51184c1cf2090ee7ecc21933a4edc70b0920703

    SHA512

    274353c90e0edff787b193827c6a15e887e7752e089b5d85997a324d4aee1060692d6487372e3291ef40b0bbd165fb9705735188f865dc5a4ece63eb2576f5e6

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059

  • C:\Users\Admin\AppData\Local\Temp\7zSCECE.tmp\setup.exe

    Filesize

    61KB

    MD5

    16ef6e914973925977cdc5ef6b8b2565

    SHA1

    4815da2815975b33f5dc94d482e6dbc02588afa6

    SHA256

    6b9a2b64b90799f1d50458dc38fb4e9e13a8abb37210c8f5d9eeedae84c6912f

    SHA512

    c74f0e17878c4598b626edb5e75e7ee098b71c0c26454ba709e2ea438517670ce11abf7d909470e6c935a21d0413c0d14b29960af9bd6a423e3261789a35b059