Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b7e914a70e63070…

MALICIOUS

PDF

46.1 KB Created: 2021-05-10 13:42:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 13271e83e9395c73dcab9958fdbe6585 SHA-1: 4ebba1023aad2c1d4c63ba0a0c5c82827df441c7 SHA-256: 1b7e914a70e63070e45910ef23ac87aea66ae88f038b03d8f708019880a0fff6
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 0.7490

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-coins-and-spins-today-game-hack PDF link annotation
    • http://galletta.com/images/robux-download_GM431946152.pdfIn PDF document text
    • http://galletta.com/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://galletta.com/images/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://galletta.com/images/roblox-online-free-no-download_GM431946152.pdfIn PDF document text
    • http://galletta.com/images/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://galletta.com/images/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://galletta.com/images/huskybuckscom-free-robux_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003c44.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3C44 24112 bytes
SHA-256: 01b5edb0e7d136e87cddc54e336d64f77cf65ccb602a08bdc58d9d9d07784873
font_01_sfnt_off0000730b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x730B 3124 bytes
SHA-256: 9967c6221325a4ff3f7c4336922605f990450164c2eee2df708cc81823c6ec98
font_02_sfnt_off00007de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE5 8676 bytes
SHA-256: e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468
font_03_sfnt_off0000926f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x926F 18240 bytes
SHA-256: 4e9460ee7c922f2330eb91d2df2ab210a384988491c8b06196f83513902e5b38

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