Malicious PDF — malware analysis report

Static analysis result for SHA-256 47cc3fcab5642de2…

MALICIOUS

PDF

47.9 KB Created: 2021-06-11 07:26:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 48fcd3882355d25ed895a93c8b246bbd SHA-1: 6a119856cb8b3946700031b3c0a841b1adf2a50f SHA-256: 47cc3fcab5642de2ced5a34927e4b24c15421f8f1eb8bfe3ee7d486e2b003170
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to a malicious URL, identified as a lure for free game hacks or generators. The document body and heuristics indicate a clear intent to trick users into visiting this malicious infrastructure. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.tw/app/431946152/how-to-get-1-million-robux-free-game-hack In PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-robux-hack-youtube_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/blockland-for-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/girl-roblox-avatar_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/infinite-jump-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/pokemon-go-free-2021_GM1094591345.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/wurst-18_GM479516143.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://opac.pps.uin-alauddin.ac.id/repository/daily-free-spins-coin-master_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052bc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52BC 25620 bytes
SHA-256: 3ac6d0e761490877bd66074266ea3fa08c8baeea60af46385feaf418613d91a5
font_01_sfnt_off00008d44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D44 2888 bytes
SHA-256: dcdd98ee8e25436a83587ccb4027347dd2c3fcec95f3413942edd4086125bcca
font_02_sfnt_off00009718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9718 18776 bytes
SHA-256: b2f9def511295a9c4f42b010b62991cc6c45513c1a41fc8351083c61732c936e

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