Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    21-10-2024 17:09

General

  • Target

    free robux by jan.exe

  • Size

    37KB

  • MD5

    890ee6656ca4c3b83fd466f7cfb985d4

  • SHA1

    b66619a4c85075912452f245ad488698819716ea

  • SHA256

    653bfeb94f41c3a3e35b39f8f980393fcbed4c4ee1f82c2e82d9f1089f2b08fa

  • SHA512

    08bdf9bdedd4921b2b302daa533c314676bb8ccfe2346e07daf19e7eb03142223238865ed80a94841de3b8269be7ee7436b297354473986986240dc4f08186ff

  • SSDEEP

    384:4yVvEiTbTvpWNcZ0y8fvCv3v3HLkacparAF+rMRTyN/0L+EcoinblneHQM3epzX9:JV7TZ38fvCv3v1cQrM+rMRa8Nudrt

Malware Config

Signatures

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 8 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 39 IoCs
  • Suspicious use of FindShellTrayWindow 21 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\free robux by jan.exe
    "C:\Users\Admin\AppData\Local\Temp\free robux by jan.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3776
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\free robux by jan.exe" "free robux by jan.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:1680
  • C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2572
    • 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 SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=1996 -parentBuildID 20240401114208 -prefsHandle 1924 -prefMapHandle 1916 -prefsLen 23678 -prefMapSize 244658 -appDir "C:\Program Files\Mozilla Firefox\browser" - {928c96bc-3d36-4bee-80f3-c8c9ae1aab47} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" gpu
        3⤵
          PID:3128
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2392 -parentBuildID 20240401114208 -prefsHandle 2368 -prefMapHandle 2364 -prefsLen 23714 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {6c9b6fdc-974a-4f73-84f6-7aa01139808a} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" socket
          3⤵
            PID:1936
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3060 -childID 1 -isForBrowser -prefsHandle 2752 -prefMapHandle 2736 -prefsLen 23855 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {e9e3f113-36ad-4be4-b6b5-be48b2ded162} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
            3⤵
              PID:2760
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4004 -childID 2 -isForBrowser -prefsHandle 3996 -prefMapHandle 3992 -prefsLen 29088 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {0a5b5816-b4d7-4fb2-a6dc-abb71d3f4f5d} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
              3⤵
                PID:2160
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4980 -parentBuildID 20240401114208 -sandboxingKind 0 -prefsHandle 1584 -prefMapHandle 4968 -prefsLen 29088 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {eda23868-f07f-4030-b305-f99147e85524} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" utility
                3⤵
                • Checks processor information in registry
                PID:3160
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5384 -childID 3 -isForBrowser -prefsHandle 5320 -prefMapHandle 5368 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {866d8bc0-87a3-47bf-850d-2cf89cea6a30} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
                3⤵
                  PID:1848
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5540 -childID 4 -isForBrowser -prefsHandle 5616 -prefMapHandle 5612 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {54f8baaf-41c2-4709-8836-726f044d10c4} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
                  3⤵
                    PID:2504
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5736 -childID 5 -isForBrowser -prefsHandle 5812 -prefMapHandle 5808 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {61022119-25f0-4bbb-af8f-5245448064bb} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
                    3⤵
                      PID:828
                    • C:\Program Files\Mozilla Firefox\firefox.exe
                      "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3588 -childID 6 -isForBrowser -prefsHandle 5808 -prefMapHandle 5616 -prefsLen 27211 -prefMapSize 244658 -jsInitHandle 936 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f3c38b58-6d7f-499b-9c14-20d8ad414375} 2768 "\\.\pipe\gecko-crash-server-pipe.2768" tab
                      3⤵
                        PID:2780

                  Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Temp\tmpaddon

                    Filesize

                    479KB

                    MD5

                    09372174e83dbbf696ee732fd2e875bb

                    SHA1

                    ba360186ba650a769f9303f48b7200fb5eaccee1

                    SHA256

                    c32efac42faf4b9878fb8917c5e71d89ff40de580c4f52f62e11c6cfab55167f

                    SHA512

                    b667086ed49579592d435df2b486fe30ba1b62ddd169f19e700cd079239747dd3e20058c285fa9c10a533e34f22b5198ed9b1f92ae560a3067f3e3feacc724f1

                  • C:\Users\Admin\AppData\Local\Temp\tmpaddon-1

                    Filesize

                    13.8MB

                    MD5

                    0a8747a2ac9ac08ae9508f36c6d75692

                    SHA1

                    b287a96fd6cc12433adb42193dfe06111c38eaf0

                    SHA256

                    32d544baf2facc893057a1d97db33207e642f0dacf235d8500a0b5eff934ce03

                    SHA512

                    59521f8c61236641b3299ab460c58c8f5f26fa67e828de853c2cf372f9614d58b9f541aae325b1600ec4f3a47953caacb8122b0dfce7481acfec81045735947d

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\AlternateServices.bin

                    Filesize

                    8KB

                    MD5

                    ffc809f942273774f60221d48e1b8020

                    SHA1

                    ada786875b3efaa7bf10abf541d4dff85d866ccb

                    SHA256

                    3c7fa27e83522bff73883128a7665d0e866f242a8efe6b3f8261e6238c9b9942

                    SHA512

                    b1f2aecd66b1d6a47f0119f962e5d95564239e5ebc9945d29113a35a27cc50dd428bf6edbfe64af868dfa71c614c406a8772147b47b56fa7848b737b9ed4088e

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\AlternateServices.bin

                    Filesize

                    17KB

                    MD5

                    70125e7188facb3dedaa2c7e11708dd5

                    SHA1

                    bb8065b74d8dbfd56509bbf9d368ab0e9a9989a6

                    SHA256

                    93de5d0e30483ae5d62c96c07dc12b91a4d5600cd1f04aff58d198a0e73edc0d

                    SHA512

                    42cbda4e522edafffa46e3a68018e31234937f64f290f8271a60095514c72d5f3addc582fbb87a85f3154a4f56d7a66082a2da8d6665d78b274a4143b6eb2b73

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\db\data.safe.tmp

                    Filesize

                    5KB

                    MD5

                    ce2cc6ca80768e88e78ecaae0672e4ab

                    SHA1

                    96394d3ffa7f329fb6d87f8f61f0566395f1864d

                    SHA256

                    c5f6903685ce9b0dc9460aec19666aa0496bb08ca23a0ba59ba61fe8ca23b242

                    SHA512

                    b28c8c55ddbe811d48709d1f7fd3bb39d640ded1bdb26e964cb0352077af9247119d06861b59ac6a39542286fbb8f824ad9fac224f63c299db84d87f9777fc8c

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\db\data.safe.tmp

                    Filesize

                    13KB

                    MD5

                    61b742d1b6f632c9fb87af3df88452c1

                    SHA1

                    b0f56335d5c706f77268f8b1a14212cf0b018b1f

                    SHA256

                    b0d5ac182f354a2e5ad7f8dcd635f44298925aa5596b398f35533a6f84b0618e

                    SHA512

                    c1922e17fb9df72e762c372952291267f46ea7fafe3ef9828738c203ca295ca89f745f1121b1a5bf8c9e7423c0607b86d126e0cf95d6332df9da1bfa7ae784a5

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\db\data.safe.tmp

                    Filesize

                    6KB

                    MD5

                    68625ee931388d8a4137d3c12b211b8f

                    SHA1

                    0e234ca21270723b8fa28cf244439c762c5236b8

                    SHA256

                    6f753f1cd9e1e8021bd2726979a6058a540253f9620176a7fddc8e30700bdce7

                    SHA512

                    7da9fc827b0363a91c7436564ea723c59bcf27cc993c4a4731b6e68386659cd1854c373aba91663ee66b5ce8c47d6be3cbb1162cf88aff5ecea2a76d83eacb7c

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\pending_pings\0ca2a7e4-733a-459e-896f-cd44efab1a01

                    Filesize

                    671B

                    MD5

                    5384ceb44ca67ae300b44170f1719a0a

                    SHA1

                    df3f9a6845eb34afbc73171dac79abfe0154c5f9

                    SHA256

                    204b80f62b24da9eeffc6a5b47d1279e07d909f091f8cd9eb9453d2491551ea4

                    SHA512

                    f89f8c72582a6b100358d871828b3c027995a5b4a8b8cb590d35a658b4ec3270b9cc8aae29ddd9d419bca4b1f38dccedd3a04b59af88d1a5eb57338108347e2f

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\pending_pings\12b513c4-71a8-4f0f-8836-de0e042e0b8d

                    Filesize

                    27KB

                    MD5

                    f28acc7aa397dd4d0eeade9b92426376

                    SHA1

                    dedcc6d24bfdc528d8d35ae3a26926342e328024

                    SHA256

                    e498febaf9a35dc2665d00564b1e882e0f4d977329bc050999a8369dcf15496c

                    SHA512

                    626a1cf40c9528410a80df5b18bf675881b6f17dd715e8ed94be4286223a5f8b3948d78d7488cffb86e060a281b24466eee5fb47f933c3167cbc98ec732c56de

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\datareporting\glean\pending_pings\68151546-5ca4-472b-8c60-92734751ee41

                    Filesize

                    982B

                    MD5

                    17e36ea9364e4b6a7f4e2b8a75ff8c01

                    SHA1

                    d712cf21e49dd502f35d202f96e47f15916f2782

                    SHA256

                    f32a73fa9b65fcef0b8f30f8ccad3093151bb9d183d4357fc31481c88b92bc43

                    SHA512

                    653859ac5b96580546ffaa32cd6325ad682b2c9497686184c27a19e7a8a552f9d4525249231dcd998198ad780e16aaf9e1f8f54035f129a1e2336ad87169e34f

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\gmp-gmpopenh264\2.3.2\gmpopenh264.dll

                    Filesize

                    1.1MB

                    MD5

                    842039753bf41fa5e11b3a1383061a87

                    SHA1

                    3e8fe1d7b3ad866b06dca6c7ef1e3c50c406e153

                    SHA256

                    d88dd3bfc4a558bb943f3caa2e376da3942e48a7948763bf9a38f707c2cd0c1c

                    SHA512

                    d3320f7ac46327b7b974e74320c4d853e569061cb89ca849cd5d1706330aca629abeb4a16435c541900d839f46ff72dfde04128c450f3e1ee63c025470c19157

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\gmp-gmpopenh264\2.3.2\gmpopenh264.info

                    Filesize

                    116B

                    MD5

                    2a461e9eb87fd1955cea740a3444ee7a

                    SHA1

                    b10755914c713f5a4677494dbe8a686ed458c3c5

                    SHA256

                    4107f76ba1d9424555f4e8ea0acef69357dfff89dfa5f0ec72aa4f2d489b17bc

                    SHA512

                    34f73f7bf69d7674907f190f257516e3956f825e35a2f03d58201a5a630310b45df393f2b39669f9369d1ac990505a4b6849a0d34e8c136e1402143b6cedf2d3

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\gmp-widevinecdm\4.10.2710.0\manifest.json

                    Filesize

                    372B

                    MD5

                    bf957ad58b55f64219ab3f793e374316

                    SHA1

                    a11adc9d7f2c28e04d9b35e23b7616d0527118a1

                    SHA256

                    bbab6ca07edbed72a966835c7907b3e60c7aa3d48ddea847e5076bd05f4b1eda

                    SHA512

                    79c179b56e4893fb729b225818ab4b95a50b69666ac41d17aad0b37ab0ca8cd9f0848cbc3c5d9e69e4640a8b261d7ced592eae9bcb0e0b63c05a56e7c477f44e

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\gmp-widevinecdm\4.10.2710.0\widevinecdm.dll

                    Filesize

                    17.8MB

                    MD5

                    daf7ef3acccab478aaa7d6dc1c60f865

                    SHA1

                    f8246162b97ce4a945feced27b6ea114366ff2ad

                    SHA256

                    bc40c7821dcd3fea9923c6912ab1183a942c11b7690cfd79ed148ded0228777e

                    SHA512

                    5840a45cfdb12c005e117608b1e5d946e1b2e76443ed39ba940d7f56de4babeab09bee7e64b903eb82bb37624c0a0ef19e9b59fbe2ce2f0e0b1c7a6015a63f75

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\prefs-1.js

                    Filesize

                    11KB

                    MD5

                    c854c65192283009992b0a8398dc0ac7

                    SHA1

                    eb726394de8bbeb5597e51c393e34df37b46bdea

                    SHA256

                    55bdf1fdc8be79cef3aceef469918ac403448f0a8a4a93c7a7f624021404a52a

                    SHA512

                    efd03033616160413fb4d6a6cba5775d4d34f67bfc9746bdb44cbe327452536911e50375e4cf14697079912a143e8a9af31ee10f6f9ed7f71b5101d9103c3241

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\prefs-1.js

                    Filesize

                    11KB

                    MD5

                    57a55806b96ad3df5803d96aeb3b58f3

                    SHA1

                    0e0d7cb7927de543e80a28909d38e59a05774832

                    SHA256

                    5c34cb85176494e3e47f58a6ce2329f3a3ecc41d7242c4f5297556535837a57b

                    SHA512

                    1f7a6f7128e6b2454b3708417a1ef7f5d5031d82f7eb456ae0a4eadf0310d9e80cccedb966cbc696db5de981bc3fa5946047d8dd8aa7061e4c3969aae2704d32

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\prefs.js

                    Filesize

                    11KB

                    MD5

                    ac394266abec19fe6f6415f596c51c3a

                    SHA1

                    52769ea520ecee2096002218ed809a6dce18fd34

                    SHA256

                    2c77d9bd41e882315851511a88ca2b8796bc0966beee5ec1eafdeb6d7d2b7a60

                    SHA512

                    690d5a786ad129924b6c3dc5e4d773e98629424bd180115a4d6381cf65db0a1fec22d146e3ee34b4c2970719d5668222aad9df5a3c0efaf81d1f5ad5793cec04

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\sessionstore-backups\recovery.baklz4

                    Filesize

                    1KB

                    MD5

                    da06cfdf4a0d99ba6e00e0ab9dd423d3

                    SHA1

                    d6a0ae09b6391c20d34c5f0c779b963e91bbe06f

                    SHA256

                    d4b127d9b98ec14b8e429a0b88dcf4199dc4cb7f99547dd748a9a0eded7f5f79

                    SHA512

                    0ebabbe05018361ff38fa33c41a639758ef8811214d93d288f51a5889e28de551a195cc59663bcfdc87f5adc944e2bfbe61605b861aa9a9e2356462ec296e784

                  • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\rl5fa9qd.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite

                    Filesize

                    368KB

                    MD5

                    89f57808e16dbb6ac520d1b7e5f8d7c3

                    SHA1

                    b1a85eeefda42b9347e841b0a0642bbfc9b669aa

                    SHA256

                    035fb45365a1154067c3f90c98f4dbca8af79b03264e3e0c61c2a91f6166dc39

                    SHA512

                    1df693e70d06e63618c406e1c1a94b6f2c45007c395627e9e5fda295a185ad1d5ce44076e5689cd3b39f4a9e12843bce750007688fc79cf5f6e7fd7a1c562029

                  • memory/3776-381-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB

                  • memory/3776-315-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB

                  • memory/3776-0-0x0000000074F61000-0x0000000074F62000-memory.dmp

                    Filesize

                    4KB

                  • memory/3776-5-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB

                  • memory/3776-4-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB

                  • memory/3776-3-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB

                  • memory/3776-1-0x0000000074F60000-0x0000000075511000-memory.dmp

                    Filesize

                    5.7MB