Analysis

  • max time kernel
    37s
  • max time network
    46s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29/05/2024, 09:21

General

  • Target

    docfus.exe

  • Size

    6.9MB

  • MD5

    3554fa1057f1f0791928af0eb9509e69

  • SHA1

    3bbe43d751b9d67293dd2d2d352281630a8f36d9

  • SHA256

    5c70f002867b29b543af81320920cf2297ab4f4ed9b42b3b8fc432232fb91100

  • SHA512

    8ca399928e4a7cc2cf68f1bcda362394d973e856d022103371eda7324e00d2a54d3e8be8c74efc82b08d3aa599389064b8068449f56eee4b07f77b00df91cedd

  • SSDEEP

    196608:ls2g8QA1HeT39IigFeE9TFa0Z8DOjCdylEmQVyeoD:pp1+TtIiRY9Z8D8CclEt4D

Score
7/10

Malware Config

Signatures

  • 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 processor information in registry 2 TTPs 10 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\docfus.exe
    "C:\Users\Admin\AppData\Local\Temp\docfus.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3844
    • C:\Users\Admin\AppData\Local\Temp\docfus.exe
      "C:\Users\Admin\AppData\Local\Temp\docfus.exe"
      2⤵
      • Loads dropped DLL
      PID:1764
  • C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:464
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe"
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3160
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.0.2020837802\1509273271" -parentBuildID 20230214051806 -prefsHandle 1812 -prefMapHandle 1804 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {93182c3d-bea7-491c-9355-1718dcd563eb} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 1892 2207fb08a58 gpu
        3⤵
          PID:5060
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.1.2056235015\294578408" -parentBuildID 20230214051806 -prefsHandle 2404 -prefMapHandle 2396 -prefsLen 22110 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {0aa5599a-645f-4d10-8ea6-d6fe65319d2f} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 2416 22008169d58 socket
          3⤵
          • Checks processor information in registry
          PID:2172
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.2.664488653\474598433" -childID 1 -isForBrowser -prefsHandle 3204 -prefMapHandle 3200 -prefsLen 22148 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {4aa31080-33c9-4034-bd14-909747464887} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 2652 2200ab05558 tab
          3⤵
            PID:2288
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.3.2048874231\1468017725" -childID 2 -isForBrowser -prefsHandle 3432 -prefMapHandle 1164 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {b07fa555-a525-4561-b477-7d0b34e96554} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 3576 2200d723558 tab
            3⤵
              PID:548
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.4.1898997324\621326027" -childID 3 -isForBrowser -prefsHandle 5020 -prefMapHandle 5004 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2e53639f-1793-41d6-92af-25d3c0be0201} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 5016 22010081958 tab
              3⤵
                PID:1860
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.5.1398113370\640719356" -childID 4 -isForBrowser -prefsHandle 5252 -prefMapHandle 5248 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {7f011463-b504-4f80-a5de-fd041d5eef0b} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 5260 2201007fe58 tab
                3⤵
                  PID:1680
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.6.1983847479\561608248" -childID 5 -isForBrowser -prefsHandle 5260 -prefMapHandle 5280 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {757b55a1-8e0c-4cde-980f-7fb76544767d} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 5048 22010080d58 tab
                  3⤵
                    PID:1720
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3160.7.886940304\160881901" -childID 6 -isForBrowser -prefsHandle 5820 -prefMapHandle 5816 -prefsLen 27774 -prefMapSize 235121 -jsInitHandle 944 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {53296d61-09d4-43f8-a038-773bf120f2f1} 3160 "\\.\pipe\gecko-crash-server-pipe.3160" 5724 22011aa9258 tab
                    3⤵
                      PID:3076

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\mg2c1myw.default-release\activity-stream.discovery_stream.json.tmp

                  Filesize

                  27KB

                  MD5

                  a82f25f3000c7b882a5ee4a059a01da6

                  SHA1

                  ae52425728036d46d940c623c08590e4a5669cbc

                  SHA256

                  7f567a2c121deca1789be85ecea213088d2520711c0038e9ff3c836f3dacf106

                  SHA512

                  17426475252347055093b8c522a5ea8de6fb904cfef97af30e32a96148e1e8359b75d3779e0097625454e4a1e92d7bdacf219984a79184748b234776682af27d

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\mg2c1myw.default-release\cache2\doomed\15114

                  Filesize

                  16KB

                  MD5

                  e994920cdf8ca670a28855f086209ef1

                  SHA1

                  6528836fdfd4617fd096f4475287507cfa50b946

                  SHA256

                  5a0fc5247a34b4dc6ed3ce2e249ad45f2ea9305bb61c81da2c73eef0276de1b3

                  SHA512

                  ce9820bf8037d45401cd5792118d794c9e4859ec34a107b62d7a866985ed2da29a176d9f9fe5b98c9f875e6c8ecaf4705c8ec74aa47c9ddbe9122e698ce09986

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\mg2c1myw.default-release\cache2\doomed\1827

                  Filesize

                  16KB

                  MD5

                  c333d3609609896a41665da2418d0525

                  SHA1

                  67db527592185c4fa580180d89c68ce15dd802a9

                  SHA256

                  966748db5face32d9d3a77ad45b630d672047559cc2d45101ce9a9d85b592ed5

                  SHA512

                  872de94b6ece4d796c641f949aa78dc91e28bd121bcbd66ea96b6cc4814bc140a32d157ad5455832e1af349cdcf3773386c3b3e77d9254774898aa332a4219c2

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\mg2c1myw.default-release\cache2\doomed\2276

                  Filesize

                  16KB

                  MD5

                  3347807aa25a48507ab206902511104f

                  SHA1

                  60cf8ed794166497c52648ae3c46980599ee3838

                  SHA256

                  e8b6b7c53a7ffed97dc8eaba40f482f97d0282c79bfabcabb1ad0672b96cbbc9

                  SHA512

                  40fcc1a4a8b0ae41ac9cdb1e09d2b1b91fbefcac4bf31842d9da62bdafe5a274657592cc4518c281d4c40987700e1b12eeddca16abf0b68e431b34de7ba43890

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\VCRUNTIME140.dll

                  Filesize

                  116KB

                  MD5

                  be8dbe2dc77ebe7f88f910c61aec691a

                  SHA1

                  a19f08bb2b1c1de5bb61daf9f2304531321e0e40

                  SHA256

                  4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83

                  SHA512

                  0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\_bz2.pyd

                  Filesize

                  83KB

                  MD5

                  223fd6748cae86e8c2d5618085c768ac

                  SHA1

                  dcb589f2265728fe97156814cbe6ff3303cd05d3

                  SHA256

                  f81dc49eac5ecc528e628175add2ff6bda695a93ea76671d7187155aa6326abb

                  SHA512

                  9c22c178417b82e68f71e5b7fe7c0c0a77184ee12bd0dc049373eace7fa66c89458164d124a9167ae760ff9d384b78ca91001e5c151a51ad80c824066b8ecce6

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\_decimal.pyd

                  Filesize

                  245KB

                  MD5

                  3055edf761508190b576e9bf904003aa

                  SHA1

                  f0dc8d882b5cd7955cc6dfc8f9834f70a83c7890

                  SHA256

                  e4104e47399d3f635a14d649f61250e9fd37f7e65c81ffe11f099923f8532577

                  SHA512

                  87538fe20bd2c1150a8fefd0478ffd32e2a9c59d22290464bf5dfb917f6ac7ec874f8b1c70d643a4dc3dd32cbe17e7ea40c0be3ea9dd07039d94ab316f752248

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\_hashlib.pyd

                  Filesize

                  64KB

                  MD5

                  eedb6d834d96a3dffffb1f65b5f7e5be

                  SHA1

                  ed6735cfdd0d1ec21c7568a9923eb377e54b308d

                  SHA256

                  79c4cde23397b9a35b54a3c2298b3c7a844454f4387cb0693f15e4facd227dd2

                  SHA512

                  527bd7bb2f4031416762595f4ce24cbc6254a50eaf2cc160b930950c4f2b3f5e245a486972148c535f8cd80c78ec6fa8c9a062085d60db8f23d4b21e8ae4c0ad

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\_lzma.pyd

                  Filesize

                  156KB

                  MD5

                  05e8b2c429aff98b3ae6adc842fb56a3

                  SHA1

                  834ddbced68db4fe17c283ab63b2faa2e4163824

                  SHA256

                  a6e2a5bb7a33ad9054f178786a031a46ea560faeef1fb96259331500aae9154c

                  SHA512

                  badeb99795b89bc7c1f0c36becc7a0b2ce99ecfd6f6bb493bda24b8e57e6712e23f4c509c96a28bc05200910beddc9f1536416bbc922331cae698e813cbb50b3

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\_socket.pyd

                  Filesize

                  81KB

                  MD5

                  dc06f8d5508be059eae9e29d5ba7e9ec

                  SHA1

                  d666c88979075d3b0c6fd3be7c595e83e0cb4e82

                  SHA256

                  7daff6aa3851a913ed97995702a5dfb8a27cb7cf00fb496597be777228d7564a

                  SHA512

                  57eb36bc1e9be20c85c34b0a535b2349cb13405d60e752016e23603c4648939f1150e4dbebc01ec7b43eb1a6947c182ccb8a806e7e72167ad2e9d98d1fd94ab3

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\base_library.zip

                  Filesize

                  1.3MB

                  MD5

                  8dad91add129dca41dd17a332a64d593

                  SHA1

                  70a4ec5a17ed63caf2407bd76dc116aca7765c0d

                  SHA256

                  8de4f013bfecb9431aabaa97bb084fb7de127b365b9478d6f7610959bf0d2783

                  SHA512

                  2163414bc01fc30d47d1de763a8332afe96ea7b296665b1a0840d5197b7e56f4963938e69de35cd2bf89158e5e2240a1650d00d86634ac2a5e2ad825455a2d50

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\libcrypto-3.dll

                  Filesize

                  5.0MB

                  MD5

                  e547cf6d296a88f5b1c352c116df7c0c

                  SHA1

                  cafa14e0367f7c13ad140fd556f10f320a039783

                  SHA256

                  05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de

                  SHA512

                  9f42edf04c7af350a00fa4fdf92b8e2e6f47ab9d2d41491985b20cd0adde4f694253399f6a88f4bdd765c4f49792f25fb01e84ec03fd5d0be8bb61773d77d74d

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\python312.dll

                  Filesize

                  6.6MB

                  MD5

                  3c388ce47c0d9117d2a50b3fa5ac981d

                  SHA1

                  038484ff7460d03d1d36c23f0de4874cbaea2c48

                  SHA256

                  c98ba3354a7d1f69bdca42560feec933ccba93afcc707391049a065e1079cddb

                  SHA512

                  e529c5c1c028be01e44a156cd0e7cad0a24b5f91e5d34697fafc395b63e37780dc0fac8f4c5d075ad8fe4bd15d62a250b818ff3d4ead1e281530a4c7e3ce6d35

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\select.pyd

                  Filesize

                  29KB

                  MD5

                  92b440ca45447ec33e884752e4c65b07

                  SHA1

                  5477e21bb511cc33c988140521a4f8c11a427bcc

                  SHA256

                  680df34fb908c49410ac5f68a8c05d92858acd111e62d1194d15bdce520bd6c3

                  SHA512

                  40e60e1d1445592c5e8eb352a4052db28b1739a29e16b884b0ba15917b058e66196988214ce473ba158704837b101a13195d5e48cb1dc2f07262dfecfe8d8191

                • C:\Users\Admin\AppData\Local\Temp\_MEI38442\unicodedata.pyd

                  Filesize

                  1.1MB

                  MD5

                  16be9a6f941f1a2cb6b5fca766309b2c

                  SHA1

                  17b23ae0e6a11d5b8159c748073e36a936f3316a

                  SHA256

                  10ffd5207eeff5a836b330b237d766365d746c30e01abf0fd01f78548d1f1b04

                  SHA512

                  64b7ecc58ae7cf128f03a0d5d5428aaa0d4ad4ae7e7d19be0ea819bbbf99503836bfe4946df8ee3ab8a92331fdd002ab9a9de5146af3e86fef789ce46810796b

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\mg2c1myw.default-release\prefs-1.js

                  Filesize

                  6KB

                  MD5

                  066ca219ff5004576f614bb5bca2e18b

                  SHA1

                  6ac10ce0d099464e309f6fc7e9f498a51ddaf93d

                  SHA256

                  97337a621f5ea800f33e184c8b1ad53984f32eb2ef9c3a5aad03b095c10d591e

                  SHA512

                  924231d72ba9e9d18656c8b9027d7b93752d6d1bcb8f02b14e89eb7101a19448b8c33747300def40b2c0053030d9ad301823a1179547e5076c0ab8167848da5c

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\mg2c1myw.default-release\sessionCheckpoints.json

                  Filesize

                  259B

                  MD5

                  e6c20f53d6714067f2b49d0e9ba8030e

                  SHA1

                  f516dc1084cdd8302b3e7f7167b905e603b6f04f

                  SHA256

                  50a670fb78ff2712aae2c16d9499e01c15fddf24e229330d02a69b0527a38092

                  SHA512

                  462415b8295c1cdcac0a7cb16bb8a027ef36ae2ce0b061071074ac3209332a7eae71de843af4b96bbbd6158ca8fd5c18147bf9a79b8a7768a9a35edce8b784bf

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\mg2c1myw.default-release\sessionstore-backups\recovery.jsonlz4

                  Filesize

                  3KB

                  MD5

                  33240623e9e2675ff8f8094cfcde17bc

                  SHA1

                  d02d4650b38dcfff3e649a573528d5c088c9a5e1

                  SHA256

                  83f3664fe5218eb2c8268f45ad19db542c5a34a5b33ee465b857891493ea6b3e

                  SHA512

                  271a0fc6a23d9219ae5504c85a4e4fe2fe517f6e91944460bb3ddcacba6d55e194f420d39aa0c269523ede57703daa58f2505e284022cfad5f9bd5f954dd6392

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\mg2c1myw.default-release\sessionstore.jsonlz4

                  Filesize

                  7KB

                  MD5

                  817fb599dc29313211c0959bf9699371

                  SHA1

                  1fcc6f6191dd353ade72068fe1902326bcff0e6a

                  SHA256

                  b699dacbeda760d40ec87a00209c421adc19990bd24d471db3a98a1d0707e1eb

                  SHA512

                  c97ebfaab6f9974f8aab2d30b167b285315523b441914d6393ecc0b2010b7567dcc3e8133624e57ea2e996b4acf10f9cbe37292a1c12d6ff4ef6d4664163c8e5