Malicious PDF — malware analysis report

Static analysis result for SHA-256 a721b49c65b40005…

MALICIOUS

PDF

50.9 KB Created: 2021-06-11 06:43:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c784921b7ae34edb124b433f4b41a6bd SHA-1: 0f6ebedb024ff7e7336d58e383161bfe7a2428a1 SHA-256: a721b49c65b40005d46c2d89ece811b3e713e90aa6c5d8af9d1582403f52d54a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure related to 'free generator / game hack' and directs users to a malicious URL. The ML classifier strongly flagged this PDF as malicious. The embedded URL likely leads to a site that attempts to download further malicious content or exploit the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9713

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/faces-on-roblox-that-cost-for-free-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/tiktok-free-likes-no-verification_GM835599320.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-hack-download-pc-booga-booga_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/rbx-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/counter-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-free-pets_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/20210-free-spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/pokemon-go-free-yellow-team_GM1094591345.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005074.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5074 25076 bytes
SHA-256: 55707144976ec9e81323324a54ff6b2462949babefcc04a2a218e0737921da67
font_01_sfnt_off00008a40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A40 3884 bytes
SHA-256: 40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
font_02_sfnt_off000096e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E3 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off0000a38a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA38A 18448 bytes
SHA-256: 5d8dce56e9d0b31827e900d07478c55903c459ecb07cba0396fb2ec38be256c2

Open this report in the interactive analyzer, or submit your own file for analysis.