Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 00:00

General

  • Target

    eb4ac6df43c243f068001eea68263007050e8b301b9aedf138011d050dc3f682.exe

  • Size

    315KB

  • MD5

    a19cf93513fe44a551ac4abdb37ff5b5

  • SHA1

    737cecb197b4f1c5cafb1ce196d2f07b6bb8b38c

  • SHA256

    eb4ac6df43c243f068001eea68263007050e8b301b9aedf138011d050dc3f682

  • SHA512

    5a8700b7e6da84496de54bc97d0704bcb8529cc0a3504715efb41e997eaaa05ce42efff70abaf5802aa0fa68c3289f13e2b989d2e2ef34e7539d36951300bedc

  • SSDEEP

    6144:91OgDPdkBAFZWjadD4s2EasWNxpjbTQ7ol4duQR/M4yC:91OgLda9Ev83bMo+D

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\eb4ac6df43c243f068001eea68263007050e8b301b9aedf138011d050dc3f682.exe
    "C:\Users\Admin\AppData\Local\Temp\eb4ac6df43c243f068001eea68263007050e8b301b9aedf138011d050dc3f682.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Users\Admin\AppData\Local\Temp\7zS8C56.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:1836

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\7zS8C56.tmp\[email protected]\chrome.manifest

          Filesize

          114B

          MD5

          143796dacadb170286eb2a491afca7c5

          SHA1

          3c7234f05b9975059c58917b8a912447bb9d4888

          SHA256

          1b819a177a5c13e30648ff255425ce70e299be7a8e02dba4c46c450c0b56d120

          SHA512

          3c10c97c68500e50df69c6879d6db7ad59d7ee4a36082115588b66e4bce27e382746fbb90fa9939665aef02a140bf5afcae0769a5aea50812370ce1843136911

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\indexeddb.js

          Filesize

          1KB

          MD5

          e92df6063315654baae8a2d04e1e4490

          SHA1

          5098ed72bf98b7b530fa71a329bc30520f162a43

          SHA256

          c168fec047fd3a41e0fe2095514b321a88d5db3f8920e613690f69e9f6d5e16e

          SHA512

          b8b5953f674b66a09ed1d28f403760e268678c5ab00e006a05ee577bae7786f9e792af47a0e20c408436377bf53fd23c8bb83fe1f1a5bf62b8079a1c5ded165a

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\jquery.js

          Filesize

          91KB

          MD5

          4bab8348a52d17428f684ad1ec3a427e

          SHA1

          56c912a8c8561070aee7b9808c5f3b2abec40063

          SHA256

          3739b485ac39b157caa066b883e4d9d3f74c50beff0b86cd8a24ce407b179a23

          SHA512

          a693069c66d8316d73a3c01ed9e6a4553c9b92d98b294f0e170cc9f9f5502c814255f5f92b93aeb07e0d6fe4613f9a1d511e1bfd965634f04e6cf18f191a7480

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\jsext.js

          Filesize

          6KB

          MD5

          317b9fa2d9ee7caebe7590bdc16472e7

          SHA1

          972bcd159ab7177cbd73d0d794c4343e8402fc7d

          SHA256

          9f36431f17abb58f7010642d38cdf27b6b719abcf00d53a018d973e45b38432f

          SHA512

          1860e4e372c1932beb5205078af20155aa957fd8de40640004c96d4808ebba1de5f2d8b59abfe696a1a9fc6cb002c0a9782c4b7d61d2d1c786db2b0f8d11e9ec

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\lsdb.js

          Filesize

          1KB

          MD5

          db435ff283f52d9e31e42150076c665b

          SHA1

          72665d00a40754f1ff4bc2045fc20504bf8159a5

          SHA256

          f805fa17e1c9b258ae172757e6848b4ba7fe0d663bfdb166b499350178e5315c

          SHA512

          abc80a7a5e11379885b21fbadc525b594df8cf80593d9f77ed2f3a0f4dd28788a49d14afcf66c8e6383c00f38c8ca86e542b41f81aa89f2abe1a4ae40368224b

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\prfdb.js

          Filesize

          1KB

          MD5

          671855970549e29dc7fc0de2a608c895

          SHA1

          b1df483a43b0d099fcdfdba407c8bff27364070a

          SHA256

          76da9648e6481d35356dd2de56208318367dc007fe8d5c1c75f641e3379ba9ea

          SHA512

          39a074e1e40fb59a8ea35e5b077d8d9f253628b7b0af37276294679b932890146b6fb20a1e9e5cdb10ed0130a81dec78c219345cfcb1d47671cbc910be372450

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\sqlite.js

          Filesize

          1KB

          MD5

          6099e30fa8d99f169a2a2daffafbaffb

          SHA1

          b62f288b0128058e359d4c812ce825a5e74d99d3

          SHA256

          ae38d214bd68093339aea02dbd7d39045c8f98ec3add25fb0819991eb1a6dae2

          SHA512

          5ad5d322e3764edc955a6bc27a482ca93fa3651a56405ead49cade721a9c2c9c922e2267eb45d2d98ecfd7d00975163e5a6ba94334986dd1ac6ad27d60c4dcdd

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\content\wx.xul

          Filesize

          228B

          MD5

          26456821795319e60592e4f883057c8e

          SHA1

          6570be74fc673cf8fdca42b11274c7a56ff5a221

          SHA256

          ae5fd655be6238f340e90a73b28f7f483adb6200e271193ce20ff863c0cba0aa

          SHA512

          a134e0dee424b3f4424e4ab804edaaaea272452070d87c33f147cf4b656dba7f332bd507fa9a2f708d4e6abbb8da2dc3cefabdbf1d54872e0b9401c58f80fa13

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\[email protected]\install.rdf

          Filesize

          677B

          MD5

          e7492a1706be9ed7437bc5d17852978e

          SHA1

          d4b01e8ffe4cd6363d6f7e6d42b2c156bab57d9f

          SHA256

          bedb6e9ddf4579188c5d2f034c3d66a106184be329a33924e0cc39afc9fb1084

          SHA512

          9af7f442babf92d431b80250bec6d42b3201e396276cce7e800c7dcb5b1346f0d0c92337b25611be8334a66d3f78674b875bddb36609bbdd34dffe671d891a17

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\background.html

          Filesize

          5KB

          MD5

          a2696f48696cae916518af247e39285d

          SHA1

          a5d0c40b1c203b4ea984b03a542db315e0c67a84

          SHA256

          e2cbf25723939bee1cea0e701b5156f9609549fb32b986bc92673ebc3334a66f

          SHA512

          930429918dffe16dd40f8f04049de4eb7bb6e825b02bff42b0feb43aa6f9242aaef768e554e989d98f4c810b507ad55c4e51441e3822bcd579e372a2fbfe9743

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\bhoclass.dll

          Filesize

          139KB

          MD5

          4b35f6c1f932f52fa9901fbc47b432df

          SHA1

          8e842bf068b04f36475a3bf86c5ea6a9839bbb5e

          SHA256

          2b4d643a8a14f060bf3885f872b36e5e1fe1e777ad94783ba9593487c8e1f196

          SHA512

          8716b9a8e46933bf29348254a68d1a21392bdbbe3b4d5010e55fe638d02cc04eb685e424d440f7c5b58ffbca82e5772dd95bef73fa831595c2ae9599f3b05a99

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\content.js

          Filesize

          390B

          MD5

          3db9be8cf763e407371cd8ae06152149

          SHA1

          2e6bc446a6f2c1b3476ba66f11e455723d6ba314

          SHA256

          61a92fda31cc3b75a7061a4e51a79dddd1859b53a4378408733638b533fc0ecb

          SHA512

          aa4201fd43d882df50ce47efc2a15976120cd59e5e37bb343af51afcce13979773cb1472ebe568a919467ecc5c965a2a38d3ffdd8e9eca00ab57fefe88f34db3

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\doobdapiikpheghchjhkmbjgnjmekfjn.crx

          Filesize

          37KB

          MD5

          10ff467a8165d729f441ddb9b50b9bff

          SHA1

          3853546f0c3609cf2b8e5beebfdbce55b9fa0530

          SHA256

          7e9f40fd4a44457b96e768f50ca994eaf4e1d49a66ef448d64a6eeb3cbe15640

          SHA512

          42867cc51b0c0de1a269e969f7696ad75a3ba6e08ea653a3aa931cbdacbb82b83b37be27d7a717044460504e11f94715c9ab6598acc98612ef7a405bd920fc31

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\settings.ini

          Filesize

          603B

          MD5

          88051e5cff1eb62134c20d0887193c66

          SHA1

          c6ee42b32b0cc191e739d8f4127d514b9f20ccb5

          SHA256

          6da59eb3ededf75db45944c7e9da782dfe2a0ddd7ea4a0bcb7abb0fc4c613f73

          SHA512

          dc84c84ac0016840ff6452a9164a6f2937b44c813874957b3ae54ec7d4362859125698d8e58acd730ba536fc6178587781dc467881969fd7ce41189d47c5c5fb

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\setup.exe

          Filesize

          61KB

          MD5

          201d2311011ffdf6c762fd46cdeb52ab

          SHA1

          65c474ca42a337745e288be0e21f43ceaafd5efe

          SHA256

          15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

          SHA512

          235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b

        • C:\Users\Admin\AppData\Local\Temp\7zS8C56.tmp\setup.exe

          Filesize

          61KB

          MD5

          201d2311011ffdf6c762fd46cdeb52ab

          SHA1

          65c474ca42a337745e288be0e21f43ceaafd5efe

          SHA256

          15c0e4fd6091cda70fa308ea5ee956996f6eb23d24e44700bd5c74bf111cf2aa

          SHA512

          235d70114f391d9e7a319d94bdfc49665d147723379de7487ef76cfc968f7faa3191153b32ba1ab466caeeeeef4852381529a168c3acca9a8d5a26dfe0436f6b