Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47c2f90c24933e4…

MALICIOUS

PDF

41.1 KB Created: 2021-05-17 15:38:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6e06a0a4cd0e96c3828843e8206f6bdc SHA-1: 925af02dfe36f9186ffc8a224efc6da5c757fff9 SHA-256: d47c2f90c24933e4f6db814918b048b7cd8c4c960f9955b3f1cd6685727e35af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. These links likely lead to further malicious content or phishing pages. The ML classifier also strongly flagged this PDF as malicious, supporting the observed redirection behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/406889139/free-spins-coin-master-october-13-2021-game-hack In PDF document text
    • http://asiasieja.pl/images/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://asiasieja.pl/images/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • http://asiasieja.pl/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://asiasieja.pl/images/how-to-get-free-robux-2021_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_003_off00004745.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4745 23648 bytes
SHA-256: be3d329bb6220848b8f879e5343427e3b58d6ae63c629a292ead7baf567422ff
font_01_sfnt_off00007d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D05 18620 bytes
SHA-256: da1cee785ef1c5b0b3b445e871f6f41c5a26abcc1f59aa045f02e2e66c65be4b

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