Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e567729990fd42a…

MALICIOUS

PDF

38.7 KB Created: 2021-05-22 10:34:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fcae2acf483ae14a6d869a1dbffe802d SHA-1: 54127a585834e655bcb72d6548fb51cd481dc509 SHA-256: 5e567729990fd42a710c6b3bf9022597d1b777c5b2774fe9ff1ecfd410879d02
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a lure page advertising a 'free generator / game hack'. The primary URL, https://netcdn.xyz/app/479516143/free-minecraft-printables-game-hack, is presented as a call-to-action. The document body also contains text and links that reinforce this lure, aiming to trick the user into clicking through to a potentially malicious site. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/free-minecraft-printables-game-hack PDF link annotation
    • http://www.laborvetro.org/images/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.laborvetro.org/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://www.laborvetro.org/images/pokemon-go-for-free-app_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003404.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3404 25416 bytes
SHA-256: c0c6dcb249b760ef77fcc02f6ed83936d7aa0ae74bcef20dfe7fc080942776da
font_01_sfnt_off00006ca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA3 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off000076e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76E2 17956 bytes
SHA-256: e5df45a09fd76c24ea43a7fa28fc5fe559da15feee3d3577044ff876206ae01e

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