Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa0a5e2aeee1cde…

MALICIOUS

PDF

37.7 KB Created: 2021-05-10 10:17:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2909668852b4c782c451ee4983938b7e SHA-1: 166d00eca651c234274397bf815982739e483c1b SHA-256: 6aa0a5e2aeee1cde18664f8234c220f83b60044a922658f260abc86543f7f5af
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious. It uses an urgency-based lure. 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 clean score 0.0334

Heuristics 5

  • 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.
  • 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
  • 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/431946152/roblox-cheat-robux-game-hack PDF link annotation
    • 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_off000036a2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36A2 25532 bytes
SHA-256: 3f0acb22870eadc7db0e8889424d113a705879adf3cdafc1bba7e62d42f92e45
font_01_sfnt_off0000716c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716C 18424 bytes
SHA-256: a96f43e65daf9623fa7b9bc259dd656765653644365f0d7d49582fe5e9502473

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