Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa2865146d8d4048…

MALICIOUS

PDF

47.5 KB Created: 2021-06-10 23:23:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cb915b5c2aaee8f93d23132ab53daed5 SHA-1: 203b584e6b52ef401f60bb9b0f554ba0d22a2fe3 SHA-256: fa2865146d8d4048981829d35cf922aaff6725509d3910aaeb9d72c0a1f4a142
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/roblox-hack-robux-gratis-2021-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/tiktok-free-view-iphone-video_GM835599320.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-group-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-1-million-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-catalogs_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004df1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DF1 25076 bytes
SHA-256: 9ea5a1519d01e70a30c184c2ce4ca89c7d12b6d7bf96eb1ed938cb2566508bd6
font_01_sfnt_off0000881b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x881B 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000094c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94C2 18948 bytes
SHA-256: 909f6d5651b62bb55d6923df70466b250c3f51ef29a5bb2c4528054ad8bbcf03

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