Malicious PDF — malware analysis report

Static analysis result for SHA-256 03f6582e6348bcbe…

MALICIOUS

PDF

37.8 KB Created: 2021-05-23 01:09:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1ed7023dd3f77f60e28909b1599dab99 SHA-1: 8a340ef1ccd5297ef7fc97971907e0668e78fab1 SHA-256: 03f6582e6348bcbe01310e23b1066b200ee016af1e3798e617fb27c457282ac2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple external links, with a high-confidence heuristic identifying a lure related to 'free generator / game hack'. The primary URL, https://netcdn.xyz/app/835599320/free-tiktok-video-game-hack, is likely the destination for a malicious payload or phishing attempt. The document body also contains a call to action 'CLICK HERE TO ACCESS TIKTOK GENERATOR', reinforcing the deceptive nature of the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/835599320/free-tiktok-video-game-hack PDF link annotation
    • http://electro-nrg.com/images/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://electro-nrg.com/images/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://electro-nrg.com/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://electro-nrg.com/images/free-robux-without-verify_GM431946152.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_off0000313e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x313E 24524 bytes
SHA-256: 5f2aa2369a69ff7750ab1b1edcdd4c2df92b33f45cc2bf3bde9748adbc1cf7ee
font_01_sfnt_off00006943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6943 2956 bytes
SHA-256: fc78fcaaa2aeed1fcbaf203e189ad0dea9fdfa47fb827dcddba0ab48560ceca3
font_02_sfnt_off00007373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7373 17764 bytes
SHA-256: 235ab7ad76fbd6febe16a9da060cefd2b4630fdfb887c9c84e88c01a352496ee

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