Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69e33773eab1a71…

MALICIOUS

PDF

41.7 KB Created: 2021-05-25 09:04:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 3071fd51cd4ebf69d510697f2b410fa2 SHA-1: cd22872424bee70f59a448f26097842de2f27a3c SHA-256: a69e33773eab1a710fe2aa6d76304edcd3110cfd94658666e2a087504ff62376
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 0.8078

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/minecraft-build-hacks-game-hack PDF link annotation
    • http://www.friendshiptransport.net/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://www.friendshiptransport.net/images/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000034c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34C3 24852 bytes
SHA-256: cf8cd42df1c451c0289e2301bc37f2b07b46bcc04aa126ee1c97d3013ef5b2ae
font_01_sfnt_off00006cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CB2 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00007707.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7707 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00008118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8118 18344 bytes
SHA-256: 504dc7aae18f41d03fb81a40dc2b00347564f3d62703eefd30bc8cf15d610b16

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