Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-12-2024 02:54

General

  • Target

    hrar.exe

  • Size

    3.1MB

  • MD5

    b6ff996e501652ecd561639bcf8c7b65

  • SHA1

    d59eb31de4eb86fd1eb395f4e1c7fc52082c2fe6

  • SHA256

    d4e8227cf61346d7264be4f1f184898cdf84c465e622e9683993d3dcf33c4945

  • SHA512

    040ef39bc0206eccccc1b1a4af8cc46f64ed480333893ea4f5c55701ea50ca34d7c64acf7dcc08fde119cc636f9c2842715cb145b71054bccc8c42ec5fca545d

  • SSDEEP

    49152:PvelL26AaNeWgPhlmVqvMQ7XSKcORJ6abR3LoGdl3THHB72eh2NT:PvOL26AaNeWgPhlmVqkQ7XSKcORJ60V

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

roar

C2

fojeweb571-45302.portmap.host:45302

Mutex

55e529e2-c08e-4693-b5fc-9b2c7f622871

Attributes
  • encryption_key

    B42CE86AEBA4D8818352F4D811EA7BBB472E229A

  • install_name

    windows defender.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    discord

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • 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
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 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\hrar.exe
    "C:\Users\Admin\AppData\Local\Temp\hrar.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3256
    • C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:816
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "discord" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:888
  • C:\Program Files\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2844
    • 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:1500
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=1948 -parentBuildID 20240401114208 -prefsHandle 1876 -prefMapHandle 1848 -prefsLen 23678 -prefMapSize 244658 -appDir "C:\Program Files\Mozilla Firefox\browser" - {cd8f15f0-f5b6-4408-9153-58dc14e2020a} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" gpu
        3⤵
          PID:4200
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2348 -parentBuildID 20240401114208 -prefsHandle 2340 -prefMapHandle 2328 -prefsLen 23714 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {cf95804c-1b4b-4fdf-ac92-ce8a2a187714} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" socket
          3⤵
            PID:1612
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=2948 -childID 1 -isForBrowser -prefsHandle 2952 -prefMapHandle 3228 -prefsLen 23855 -prefMapSize 244658 -jsInitHandle 1296 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {4cde4e66-07be-4a4e-a081-4c010c13d47e} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" tab
            3⤵
              PID:2324
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=3124 -childID 2 -isForBrowser -prefsHandle 3488 -prefMapHandle 3448 -prefsLen 29088 -prefMapSize 244658 -jsInitHandle 1296 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {beec1994-a699-4e1b-bf16-c03f1e831032} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" tab
              3⤵
                PID:3972
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=4532 -parentBuildID 20240401114208 -sandboxingKind 0 -prefsHandle 4524 -prefMapHandle 4520 -prefsLen 29088 -prefMapSize 244658 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {273e3576-d767-4628-af8c-a68ebba80816} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" utility
                3⤵
                • Checks processor information in registry
                PID:4016
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5332 -childID 3 -isForBrowser -prefsHandle 5324 -prefMapHandle 5296 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 1296 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {da2053b4-791c-4649-939d-8e73d6b22dac} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" tab
                3⤵
                  PID:3188
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5464 -childID 4 -isForBrowser -prefsHandle 5472 -prefMapHandle 5476 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 1296 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {d39a7451-3a26-416a-a2f5-ba6e489c85c0} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" tab
                  3⤵
                    PID:756
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel=5656 -childID 5 -isForBrowser -prefsHandle 5664 -prefMapHandle 5668 -prefsLen 27051 -prefMapSize 244658 -jsInitHandle 1296 -jsInitLen 234952 -parentBuildID 20240401114208 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {defcf04f-4ce5-40bd-aef1-35a107d5a5ad} 1500 "\\.\pipe\gecko-crash-server-pipe.1500" tab
                    3⤵
                      PID:4784

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\o7bdpohx.default-release\activity-stream.discovery_stream.json

                  Filesize

                  28KB

                  MD5

                  f5c090b6930204cc739f699ae6f3d1f3

                  SHA1

                  80ac7c8bc806ee7cb69d2511bd7880747406aed6

                  SHA256

                  4530b61a0ea28e38ab10b44ee13c8adeaf1d3d6ac2c30a42f643c31f76f92595

                  SHA512

                  c27bf52b236993e732e8dc9db7a39fb078f6e242fe907b81af77d8f0305bdaefb93114509be74ea34a4bf7ec0727ce9f938a7d1ec986f562b584e291c11e598d

                • C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\o7bdpohx.default-release\settings\main\ms-language-packs\browser\newtab\asrouter.ftl

                  Filesize

                  15KB

                  MD5

                  96c542dec016d9ec1ecc4dddfcbaac66

                  SHA1

                  6199f7648bb744efa58acf7b96fee85d938389e4

                  SHA256

                  7f32769d6bb4e875f58ceb9e2fbfdc9bd6b82397eca7a4c5230b0786e68f1798

                  SHA512

                  cda2f159c3565bc636e0523c893b293109de2717142871b1ec78f335c12bad96fc3f62bcf56a1a88abdeed2ac3f3e5e9a008b45e24d713e13c23103acc15e658

                • 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\o7bdpohx.default-release\AlternateServices.bin

                  Filesize

                  8KB

                  MD5

                  8d9b05dd02d24932bffbe4964ccc2726

                  SHA1

                  c2b2e6c3e5df82ec397e0c9655265511947f7784

                  SHA256

                  bf0524de32a37aab0141d9bee0f6773b865cbc60330c2121a32c24cbc4b89ccd

                  SHA512

                  59112ad3cd8ca16cf7a08332d88e4d5c64f9f846792db1cfa49c4e460fa1bdad28b33438d354e15d922280d032a83d28656904b6d517403bb61725c7e78f8ecd

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\db\data.safe.tmp

                  Filesize

                  22KB

                  MD5

                  626835fc47aa4c925c1fcd476e16251a

                  SHA1

                  64b012b6380bbf20d4fbbeb4db03ba50e07cf437

                  SHA256

                  a9f8de14565ae8801848c75b89d50ef68e7f27849ebc74e876ba7708ac8ea6ef

                  SHA512

                  c2e4773100d48da31e86d76a730a5509f53268399aefdf5c72255458aee1faba63fcbe1beffa5f90f2d8dfa4abbb6c9b806ba31bc111fb0191ec5abede72df10

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\db\data.safe.tmp

                  Filesize

                  22KB

                  MD5

                  3b471cd3569dad249977e0c58da48d5b

                  SHA1

                  89f7cec0517af0bdccf68cf9de8fbed029d53fef

                  SHA256

                  b9779e363d4e26591f8eab286cef83358259fa3dbebbe8604ab018f3c55e2c0e

                  SHA512

                  a37256e163d0825b4c3c94d713488a31a71066329b9f944f9e26823a137e340d823c7f523cbe385208acc4d78ac45967818420a7138d7bcdf07ce30655d58925

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\db\data.safe.tmp

                  Filesize

                  25KB

                  MD5

                  eebfd3de819724f613a3ed2adb822fe3

                  SHA1

                  d133c43d590a1f8879e1368afa570ebb7de033c4

                  SHA256

                  d9e37f5120007a5188a7d7a460eea734928c531f11cb71e9e9cf47fd1238050c

                  SHA512

                  cb11618e5c1383306e438a992cc829d8531320b29bfb0dff2eef64dc2bbf5317d53071f1581bcb0a18c899bf1884d72d895323fd3495800e7ddbe22fcbb6df09

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\db\data.safe.tmp

                  Filesize

                  23KB

                  MD5

                  5ca45c8a7acf9496b6178155e8443c1f

                  SHA1

                  af9ed0edd596574e20b14ed703cfdae22e1fe0eb

                  SHA256

                  d958ed074311cb73a90b4c46c9a7ea72f2673e2ccccfb32dcdce1bec5278eab7

                  SHA512

                  322b8de026ba1f32367d86736cec098a972bace4a8b7aaff7e2abddaa637a3e9b2d8de65664745af33adb7b9344b2edb505812074f5f039ac6a30888a731b247

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\pending_pings\01c1dc23-9213-4d24-80f6-4e3cf5703aef

                  Filesize

                  659B

                  MD5

                  ec350eafdefe55aa1d454a7317f40ec7

                  SHA1

                  b8af29507928ca48751a1dc8d4c63c00e244eb43

                  SHA256

                  34d350e7168056c1a68391f23fa17cee4c275999a66eb603d67b3b159ef34663

                  SHA512

                  07fdf23c3910db1c5e50e6565f870f142cdffd4c49066c5999cd40886478cb4cd1df4d69dd5683a3805ffdd7a61608c6d0245515909668feba2932f83768ed8b

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.default-release\datareporting\glean\pending_pings\4245a0ba-c2c6-4de0-ac64-b526bd9a190b

                  Filesize

                  982B

                  MD5

                  7560297496a36ef4cb05722723eb178b

                  SHA1

                  f5b8ed79208dd2c17a7d6f5efe8dfde60857bd97

                  SHA256

                  60b9bc5fb288fb197af33be29a13485d58909e1af88a3f130e2769c594db6819

                  SHA512

                  ba7d2dd33b084b90b8575f9ea32eab232b093f6c524a2bf114e3bc764eb4bf977f82113df5d7e1e790eb35faf7e5fc5544955e6e489a8291128d15ee1ee3982f

                • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\o7bdpohx.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\o7bdpohx.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\o7bdpohx.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\o7bdpohx.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\o7bdpohx.default-release\prefs-1.js

                  Filesize

                  11KB

                  MD5

                  023f505dad56d227ba94707538f28576

                  SHA1

                  df8755abfce826e48f030435f4bd7eb76298aef1

                  SHA256

                  5bd116ca59239bc7854f827ec47135b4963dfa6943c6975031817bcf68cf36b9

                  SHA512

                  7377657589e34d1f8a0bb2c45b580c3e0ab10d4faf3295a7a707d017cc9063cc6a604c182cc0c42ae9c88675e9d035c06b5fd57e56b514855255a82af9a4f2b4

                • C:\Users\Admin\AppData\Roaming\SubDir\windows defender.exe

                  Filesize

                  3.1MB

                  MD5

                  b6ff996e501652ecd561639bcf8c7b65

                  SHA1

                  d59eb31de4eb86fd1eb395f4e1c7fc52082c2fe6

                  SHA256

                  d4e8227cf61346d7264be4f1f184898cdf84c465e622e9683993d3dcf33c4945

                  SHA512

                  040ef39bc0206eccccc1b1a4af8cc46f64ed480333893ea4f5c55701ea50ca34d7c64acf7dcc08fde119cc636f9c2842715cb145b71054bccc8c42ec5fca545d

                • memory/816-10-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

                  Filesize

                  10.8MB

                • memory/816-18-0x000000001CD10000-0x000000001CD4C000-memory.dmp

                  Filesize

                  240KB

                • memory/816-11-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

                  Filesize

                  10.8MB

                • memory/816-17-0x000000001BA70000-0x000000001BA82000-memory.dmp

                  Filesize

                  72KB

                • memory/816-14-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

                  Filesize

                  10.8MB

                • memory/816-13-0x000000001C1C0000-0x000000001C272000-memory.dmp

                  Filesize

                  712KB

                • memory/816-12-0x000000001B890000-0x000000001B8E0000-memory.dmp

                  Filesize

                  320KB

                • memory/1096-9-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

                  Filesize

                  10.8MB

                • memory/1096-0-0x00007FFF84F13000-0x00007FFF84F15000-memory.dmp

                  Filesize

                  8KB

                • memory/1096-2-0x00007FFF84F10000-0x00007FFF859D2000-memory.dmp

                  Filesize

                  10.8MB

                • memory/1096-1-0x00000000003A0000-0x00000000006C4000-memory.dmp

                  Filesize

                  3.1MB