Malicious PDF — malware analysis report

Static analysis result for SHA-256 548acdd497d20555…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 12:29:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ae065d4b907327192230b3eaec47907b SHA-1: 175a2078f6cdc0e662cfe7cd1040a0d5a0fface3 SHA-256: 548acdd497d2055514ddb30c783652f50174d87424d28ccee6da698f1a9532c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links, including a high-priority lure for a 'free generator / game hack'. The ML classifier also flagged this PDF as malicious. The document's content and embedded links strongly suggest a social engineering attack aimed at tricking users into visiting malicious URLs, likely for malware distribution or credential harvesting.

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/406889139/coin-monster-game-hack PDF link annotation
    • http://stikgiamakassar.ac.id/digilib/repository/roblox-breaking-point-hack-2021_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/robux-hack-no-human-verification-real_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-easy-way_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/code-cheater-unboxing-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/coin-master-hack-ios-without-verification_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-earn-robux-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/roblox-jailbreak-free-moolah_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/syntetisia-roblox-hack_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://stikgiamakassar.ac.id/digilib/repository/free-robux-download_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
stream_002_off000033f3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33F3 22844 bytes
SHA-256: 7c88451c410e8a5f74b165498cefdf3ae455fc073012438de6d4cd7940c4278c
font_01_sfnt_off00006760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6760 17836 bytes
SHA-256: ecea4e06c2319bfbde5a9eafaa104503e5acdd43c54713b47264e7f5b68a66df

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