Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d80c1c1e8217326…

MALICIOUS

PDF

35.3 KB Created: 2021-05-21 05:59:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 574b36b3101ce1bc20f8fb94da4359ce SHA-1: ae9131238ba7454318b9f19f3a4c903d8446adb6 SHA-256: 1d80c1c1e8217326b75d3741570236a23d730341fe9182e719adf1d8ce43e1f3
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 0.9508

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 https://netcdn.xyz/app/479516143/how-to-get-minecraft-pe-for-free-ios-game-hack PDF link annotation
    • http://www.comitatoiseo.org/images/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/free-free-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/minecraft-tower-defense-hacked_GM479516143.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_off0000327d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x327D 24100 bytes
SHA-256: af937185a767b483dcce26a1f951b84ea51c39d4462abcbb09b5fd9934288d5c
font_01_sfnt_off00006976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6976 18028 bytes
SHA-256: 3ef771fcdeed521b42e77c192c553d5a3bd318aced348222e5c137e62eefd75e

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