PDF static analysis report

Static analysis result for SHA-256 a6e78d3b4e755d62…

SUSPICIOUS

PDF

40.5 KB Created: 2021-05-13 02:32:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: cf5ef2161a1e94d532532c11a2e32153 SHA-1: 1a81d5ac1f9e3907376910526c1a918c449098f2 SHA-256: a6e78d3b4e755d62be6c92d1c50d3faa665d12c9d0ff506727033c9db842638c
52 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as suspicious. 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 0.0128

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/406889139/coin-master-free-spins-2021-blogspot-game-hack PDF link annotation
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000332a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x332A 25908 bytes
SHA-256: 5c09ce1fc65009a8a63c7f925186e3542e6da63df31b5dcb834ffea0d886a128
font_01_sfnt_off00006f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F88 3460 bytes
SHA-256: 582708023ba280d4d50e04d3196ed4a98a24323596270ce5a55f31618faa5208
font_02_sfnt_off00007af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF6 18864 bytes
SHA-256: a60b4c159fa751d33f4be90868ca767eddc5cf1793b0cfd5ca53ed2f539c329e