Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 14:17

General

  • Target

    1b2a52507cdbfcd6a7e54916e2a95c04.exe

  • Size

    313KB

  • MD5

    1b2a52507cdbfcd6a7e54916e2a95c04

  • SHA1

    51ed8ae635f1a1e4821fed9ce1f74339bd494236

  • SHA256

    7da049f0f71e8f7efcef398ef39fce5d8f2c500bcc73d7007a08f4315c6f531e

  • SHA512

    a87d09a99a2df6b01bfd89f657509f9caf041697378032a18065bc7a196fa18dbd1a6933ea4cbe02566728d405e14437742dde3ec458834d84e8b955678bdc58

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4slUdKMtoe1Cxupm3auwi7mhwxscqMmA2v7Uf:91OgLdabdKMtsVKZi7mhwxv2Yf

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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).

  • NSIS installer 4 IoCs
  • Modifies registry class 63 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b2a52507cdbfcd6a7e54916e2a95c04.exe
    "C:\Users\Admin\AppData\Local\Temp\1b2a52507cdbfcd6a7e54916e2a95c04.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Users\Admin\AppData\Local\Temp\7zS4183.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:2824

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\TheBflix\uninstall.exe

    Filesize

    46KB

    MD5

    2628f4240552cc3b2ba04ee51078ae0c

    SHA1

    5b0cca662149240d1fd4354beac1338e97e334ea

    SHA256

    03c965d0bd9827a978ef4080139533573aa800c9803599c0ce91da48506ad8f6

    SHA512

    6ecfcc97126373e82f1edab47020979d7706fc2be39ca792e8f30595133cd762cd4a65a246bee9180713e40e61efa373ecfb5eb72501ee18b38f13e32e61793b

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\chrome.manifest

    Filesize

    114B

    MD5

    1dc9a2e7bd772895a7ca4114d8cc3f59

    SHA1

    45455d649356928ab3c6d7c3e7ed2b0daca3b891

    SHA256

    efddd2f1829fdaa4016c53c6776c09f46bdba0cf7e30a55ff565bd97cd1142f5

    SHA512

    f8c6d9d537ace5fa02179e61760e37bf8cf30d1e3264f9c81e1b451e9f8cdc2db11ea00b34653717aefb081e3bc9efa308d7c567710a1b061086b1e42168e4a0

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\indexeddb.js

    Filesize

    1KB

    MD5

    1bd9510a4c1856c63fab6eec31dd6dd5

    SHA1

    64cf5a1cedfa3a46070ab990dae65c8232103ecb

    SHA256

    6c52b10acf6031e21f8b3a09fec13b48a3c8464597622a218fdf5785e2639860

    SHA512

    1a31a366631ecf6b772642d4b3fdefb6051a5d2a9ac5632d9f08f3f169fdfb390f3cee1df739d3454601cc5fd3b8397d18af203ddab803aaf67e307de0357b98

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\jquery.js

    Filesize

    91KB

    MD5

    4bab8348a52d17428f684ad1ec3a427e

    SHA1

    56c912a8c8561070aee7b9808c5f3b2abec40063

    SHA256

    3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

    SHA512

    a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\jsext.js

    Filesize

    6KB

    MD5

    15b4bd04cf6a61965e98ddf65f8ec023

    SHA1

    6ab43f649339c9aa543be4545ed74521a4cbfa44

    SHA256

    11749f867d32e3a8955689ab0ec4b458fd2fd936f861d9cd167c924b112c77c4

    SHA512

    99526a74a7afb9d2e571de5f0c95c9d11fdf77c9f8bfc4feccf1790ad62b33e36a2dc3f6eee49e07fbbcf23c0263658374a1e6b64304448e3a8178f8819cff54

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\lsdb.js

    Filesize

    1KB

    MD5

    a5d7e6bdb164f8f0e03c3a366d796ef3

    SHA1

    11f34363d0f6affe45d46f3bf6d49d1e2a495731

    SHA256

    2cbcd3215cb34fa6877424cdfa75e1d5c0c979e26f7115f580bf8215d548b1d5

    SHA512

    0ca223f2fb38de2dbf0b8079774ac7823708fdfee6b3fd2a07b2a0ee755c1506454378351a9166c0d9d0d010e420076faf769cd40d3be6deb5b50427f5c65eaf

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\prfdb.js

    Filesize

    1KB

    MD5

    691b62a71fd565086ee7705ae5ea50cd

    SHA1

    d4ecba20595942e75a09fc49a56cf6f45642c61a

    SHA256

    f4294dfe9f8690efe4d74cddff46270f4f7b1da585f4f36dfb382ddf8bb5bf92

    SHA512

    b8f8ecccfed28af371203072d86d729c3f6ac313355a42d3f3af1a2f4f7f0e6c86d5b25f718048290cfc2ffe63453264c42bd2499af0f8c8dfb040cdf9835857

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\sqlite.js

    Filesize

    1KB

    MD5

    21c3bccbb60b6f09645bef1197782e68

    SHA1

    69c9f358c0ab4999f74612ab4b730d97ca5dc2e8

    SHA256

    c8c9ac3aff364742cd3332a68633db68ac837fcd09a93e8df93201ea303b9b0c

    SHA512

    808e91f4e30385477473d77828efe8cb10c9393455e996112734dda30ac268a48c5eb5c7a17d1d9daf466fbb11314ad99e40275673b6b1e5399c671e29716be1

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\content\wx.xul

    Filesize

    228B

    MD5

    9ac98226bc7ccb477df286693ac2b93e

    SHA1

    72306f33f95777e6eb085436f2b0a5e49940165a

    SHA256

    ee3f1f9a4ea0a7525117cc5f28c8c6ad98783debfbd3cb8ad2524003d3c8661b

    SHA512

    199c6f34d3fe19eec271645a2d6db6c87c0e9675bc495b24fd74b321d631bddcc2a95a672f313880cd41e01fd3c4ebd16df63cdefb19297131ab1a09d5c98f05

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\[email protected]\install.rdf

    Filesize

    694B

    MD5

    3a5fd46bdf2dd57be9e8f224bec4ba71

    SHA1

    44ddc5fc9145cce00c1c8e11c48e2c988ae010fb

    SHA256

    0d00d4b9f76a3dcfa4dcf6ccfc1db7b3063133afceb268e11b61f353b2dfeef8

    SHA512

    fde669d5e3c79042ef66c59da19e6dc7875efe5983f5ae78bc9a81aa921c453a8dff9534d1bc006b2e05908a798de0f62484e51475e7df53afecb16c75ca4206

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\background.html

    Filesize

    4KB

    MD5

    bba43f182fc2e15491458be343a8cb9f

    SHA1

    329340de101a7e36e5a5bfa104cb48c28945d734

    SHA256

    5bd101dea0777de6acc5e42d7840ec36bea9a503e370ddb597d16694273c900a

    SHA512

    068c411aba83c3e9a8a8821cdf172edbbe13688b79501edd9c7299cbbcdfe7b755d0ba6e2b97614ac97595f16c7cbc8d3b1c86a8f42cd81c49f492bdbb61ce09

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\content.js

    Filesize

    388B

    MD5

    d3ff8ab55eeaadaf70fee7a121ebfa58

    SHA1

    b85995bed69fd7fcba6b93b778ac30d5a1b66584

    SHA256

    2d07a5ade080e54df4978da67c370bfa314caa1514d5f76266b9a743f1abb011

    SHA512

    e3a0cecc603c242592fe9b4ca8654b0738e7eaeae6a7dcbf60cb76f6ab079200bb39a79e96a7bdd29c5cf1cf9c3d3a82a30013fb9a06d10e41132d9c629bd474

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\fgdimjiihkmkbblmiendfpgennkbebke.crx

    Filesize

    37KB

    MD5

    79eebd3fd7f425ffcac3959e98fb699d

    SHA1

    57d37e83fd2fc1f774069a2b083cd8a5dc6e1d2a

    SHA256

    7ebc1ef14e4d2bf84200570b6e12ac6143e91b48d4278d2f5d0a06d30fd224e6

    SHA512

    0a491a0283296dfb106fe95d664b04ee762941e71bf1c29399f9177b81484575f18a32118ff5f115aabe056d8c4db37a18ab4a54d421986f94d50ac1661a136d

  • C:\Users\Admin\AppData\Local\Temp\7zS4183.tmp\settings.ini

    Filesize

    595B

    MD5

    841c1338948728c71201795a303fac34

    SHA1

    48ba02610eb09049f547bbddef9f996447369747

    SHA256

    7dd4ea5fdd1699c9ecb925a6b481f65f8fc3cd9ad3aa584401a4286f285586fa

    SHA512

    22329f28ef58db175779b1cec620c9793d0a8aa221fa441967abbc5d927cb9ad0813a8449b62d54848d59db17c139b1808b985604f86f653abae9a6da768ac32

  • \Users\Admin\AppData\Local\Temp\7zS4183.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b