Analysis

  • max time kernel
    91s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2022, 19:59

General

  • Target

    a9527b4c2419559d21347342f8c3834d5a634aac25421dc16cbf6d7da68373cf.exe

  • Size

    313KB

  • MD5

    0b09854eb1c558bccb820831bcebaba4

  • SHA1

    27e56fed6c4d8b7345becac8b6424913b2289739

  • SHA256

    a9527b4c2419559d21347342f8c3834d5a634aac25421dc16cbf6d7da68373cf

  • SHA512

    c375e1dfd37e617177f2e766f34e2c636c6f8c1f22efc8cc9e975458eafbe2d9fe5f9d79e4b07a7d4754f3966504e264949c724128abd55e90fd582e4b46c198

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4solRk13lymDzzeVcIPUWpjddBg:91OgLdabkllwKXsjdXg

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\a9527b4c2419559d21347342f8c3834d5a634aac25421dc16cbf6d7da68373cf.exe
    "C:\Users\Admin\AppData\Local\Temp\a9527b4c2419559d21347342f8c3834d5a634aac25421dc16cbf6d7da68373cf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.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:636

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\wxDfast\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\chrome.manifest

    Filesize

    114B

    MD5

    fc7fa21f1af397591528eaa5cadd5e33

    SHA1

    36f1640b6b3ae7aa8173023057b130edf2717dde

    SHA256

    72b9a4fc46cd3fb40365537c5ba98821d8d02ca840deda315f2eea44cc893575

    SHA512

    cf7484be024c757bb2e79544a3dfe8954fccee2fc128bd0e17eb0201c3b74ac073b08bdcccae26e53b7fd24b21546654f00a453c0796e18a95cdbd60fa1021ea

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\indexeddb.js

    Filesize

    1KB

    MD5

    23aa412c2b9310f4b4acfe11d016bbd1

    SHA1

    dc16b4a58b523626a7950047d7fa41079bebe6c3

    SHA256

    b807732aec3156231ed3326317af7174b1b1f9c85e0f05be24b25d1a01cdfdbc

    SHA512

    1de71628235c120a31484b19f8f2ef0dd1496f920b953183da8c5cfa9d12d5bd1bd0c024aee39be589df1875b625428be24791128733f47c4304391fe1fd6c74

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\jquery.js

    Filesize

    91KB

    MD5

    4bab8348a52d17428f684ad1ec3a427e

    SHA1

    56c912a8c8561070aee7b9808c5f3b2abec40063

    SHA256

    3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

    SHA512

    a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\jsext.js

    Filesize

    6KB

    MD5

    4e0ef1bd3c61e6f2ae99efa0d1fbe668

    SHA1

    1001bb5993786cee773413f1d997de33ce7edc8d

    SHA256

    699626398614cb7c11da1b7e6b7217b7e5b7068a2e2dbddbe59da6008413b55c

    SHA512

    9d4e989d5d9209426fd13b3ebef9a2ab9bc79d288a8dec6d7d410c1791dab63d053d63feb712e3ceb882af6569fadd33c29ab98f3ee8977fc6b07badab1f78d3

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\lsdb.js

    Filesize

    1KB

    MD5

    310638d6ae8e6b04c9b6d0855f953c56

    SHA1

    98ccaa374145845c77fe7b2834a6f9cc2deb21c5

    SHA256

    e49585aa9d1d4358692481419da0237e2e34265e5cdb9221d727e7e740df5c6d

    SHA512

    38df68e2908226038039d29d6221564fcbfe58a001a2e31386185ff114428a193b535ee652343ee3315dc564dd0dffb5c4fc16b8694aa2e7eabf85ac72e83eb6

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\prfdb.js

    Filesize

    1KB

    MD5

    4525aaf0f5676a1e753fd1bccef213fd

    SHA1

    d632cd767750af51ac6c256558f4b9f909792e62

    SHA256

    2f6c5fe4018e458ee6fe2106063276fa5eabb23661c733fcae178b02ede38aea

    SHA512

    481daa4ebc9ca759a69a246c241d43aed67a1d7a3d892fcc595c1d40049952a784b9c5c123f0cbead0c9e16fcbe014b3b1c2b2bed16d49c7cab8395c788c2f20

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\sqlite.js

    Filesize

    1KB

    MD5

    6ab939cc15e4a6ed354ec89a1bb3b4fd

    SHA1

    9dba159e38799b37db903138e64fb93f3d143f7c

    SHA256

    1af0228f42de42e9e2fd192c025b63e64492e4022bd5d6a3fe2784d8770db06d

    SHA512

    ed85442648c87ad177ab9940578c1289d78a7389290f3ddc402b1990f273049f898f3ed0ade17714d0a924dc38ea5653072ce1794c426383cf3f34286e56235e

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\content\wx.xul

    Filesize

    228B

    MD5

    9ecd2de266affcc9a5ddb06824b1dea7

    SHA1

    feba87a7707cfb55399cec45f20a531cc1f39953

    SHA256

    59379cea55b03f34f754073fe6bd23151149e4328f8da1fd2336df4a71232125

    SHA512

    87272bfa84805ef1081a3fbfd6d377cd14adfd32eeaf09b8ff22771e6fd6149e009b2da625bd386710c543b45b166fe604f9ff49bc5c8daf1b055fa56748b922

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\[email protected]\install.rdf

    Filesize

    677B

    MD5

    9e9559c93124cc2cd5ac397d467ee45f

    SHA1

    61b52177bd3861c17c3593c89c7c62cf5d6fa93e

    SHA256

    93a14f255d97e07f0c4a865c4f8053a4e1b159cc85a21b1a0ded88a1307844b7

    SHA512

    92d07e49ee36c60b65e18c55893c253d8c4282831fdc4d43ac4dad489e81ca21000af0cef49f252166a4936106e11fb0d31875a25fb42157fd25eca9484e60eb

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\background.html

    Filesize

    5KB

    MD5

    88c2cc51c89281ba5a9b8b9cbea6e023

    SHA1

    f8ccfb9baade869029c8f28ddd3fff65f350738d

    SHA256

    d7df16d1bddec76771716debfb4fc2d6e217ea647a8c85a820b5963b936c639e

    SHA512

    a7c7d4fedd1757c06ffab2a769c55167afc4930ff6747cae9fb120af11f09e66e1684cecb354f691f71eb8d61466467e3808b73da0081c4b32afee824e117c59

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\bhoclass.dll

    Filesize

    137KB

    MD5

    ac13c733379328f86568f6e514c2f7f8

    SHA1

    338901240fedcef4e3892fd4c723c89154f4de05

    SHA256

    7bf09b5c2a9b6348227199c1b3951b57907ca6a5c215a04ad8d5e43232f5b562

    SHA512

    35f69a82694a2ea4268a3dde7940af6bd1c87a32d93a72723464f90e4e818805be9e80872469d1cc29150a9aac872fc78613a584baa1327dfa8478c2de5672c4

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\content.js

    Filesize

    387B

    MD5

    38b34b649034edaa140c9124f4228a98

    SHA1

    c9695d76f4459cd796b9606c16ebb6e98a84c132

    SHA256

    f9803c24904e929fc51e4d713e928d5816ad153b1e0e516e12342f9d0cc9d21f

    SHA512

    2b18319034e512c0da0ce2888cf443dbaac3725362ba9ad98837130bed7bba9020b246589a4fdeb8d6b7e90cacd22ac6c24bd6bfeceb602b3a1db96edbf77656

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\obchomoikmnemfmmhbagfckmfidlmbag.crx

    Filesize

    37KB

    MD5

    8ab4801bd7b27c03eebe200a14e0c3d3

    SHA1

    878fa76b7889d88357725fd50b01695714aae1b2

    SHA256

    9fa0dd49aada61e7287814449f0c07eee5ba39839ce80545d92920f30f249e8a

    SHA512

    33fc3e0641c9d2fbff6b77219b262afb66e1d692df6437bd280cef5f11dbf833fd81557ed551bdc45d8508bdee0dc11e123e67bba05e39105106a4d305a094b3

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\settings.ini

    Filesize

    599B

    MD5

    2b7c9bcc25c882b4fa6950a7646bf613

    SHA1

    7a75c061dbcbdf1d7ba00ed11c58bb09c86e8579

    SHA256

    0df7dc91916c29c7b823e9992d5d74dca0299c7f3200bb3910143ce5bce55b5d

    SHA512

    178fb0b2532f4b8a71a41e848f8bb60bf9c7abc8b6660ba6b0064a022af8a12e25f494bf4583ae248b5052b3afbb4f3b39d66d0d73e972d1427bf6e7e57e6912

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b

  • C:\Users\Admin\AppData\Local\Temp\7zSAF8E.tmp\setup.exe

    Filesize

    61KB

    MD5

    201d2311011ffdf6c762fd46cdeb52ab

    SHA1

    65c474ca42a337745e288be0e21f43ceaafd5efe

    SHA256

    15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

    SHA512

    235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b