Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fec814550b4535f…

MALICIOUS

PDF

24.8 KB Created: 2021-07-06 15:52:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9f2ab5d9f49e5fb6535e6baa4bfe10d3 SHA-1: fed18137dbcd7b7dea6d2065f54529b005473790 SHA-256: 1fec814550b4535fb94ca6f80fd6458d9800125a5adead5e11f372c19bfbc511
94 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/479516143/classic-minecraft-net-hacks-game-hack PDF link annotation
    • http://103.40.122.33/akasia/repository/coin-master-fan-page-free-spins_GM406889139.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/free-walking-animation-for-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-4-now-info-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-fashion-frenzy-game-free-online_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-link_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/como-hackear-robux-verdadero-no-fail_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-free-robux-fast-and-easy-no-offer-no-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/synapse-x-best-free-roblox-exploit_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-t-shirt-deacls-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-hack-scripts-non-virus_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-apocalypse-cheats_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/robux-co-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-horror-tycoon-hack-script_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hacks-para-roblox-dragon-ball-rage_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-naruto-final-bond-cheat-lev-up_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000325f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x325F 22720 bytes
SHA-256: a4cfd4603035c9a4ec2b5ffbd17cc116089fd0db80ca1e68b31dca85e4711765

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