Malicious PDF — malware analysis report

Static analysis result for SHA-256 1976d8d01f081920…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 20:24:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d53839f049c5fe96dbf0882837e6bdc2 SHA-1: 23283b0c557c40bdd51e3de061cce119ee2c2bf4 SHA-256: 1976d8d01f081920bd356158b408bef23b5bd5a76526ef63065b67147021ccc6
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 0.9980

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 http://netcdn.tw/app/431946152/promo-codes-for-free-robux-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/synapses-hack-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/tiktok-international-free-download_GM835599320.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-hack-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-free-win_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-robux-in-roblox-youtube_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-roblox-strucid-codes_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-escape-prison-hack_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/roblox-is-not-free_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-spins-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-get-free-robux-without-download-apps-or-survey_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F92 22580 bytes
SHA-256: 9b0e400495dbc5dc4e08b2a85bace715f412d972bf348bb746da97da1c918577
font_01_sfnt_off00006255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6255 19304 bytes
SHA-256: 8f108eb77a448bab32907087749351f9dfb7449b9cf832684ec1eb90d477be7f

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