Malicious PDF — malware analysis report

Static analysis result for SHA-256 356e2406313afdbb…

MALICIOUS

PDF

44.2 KB Created: 2021-06-09 08:45:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 04eb392eb07167c632a9d45e1b500158 SHA-1: 1992b36584ac7abd54b600ffb571fafa7228c93c SHA-256: 356e2406313afdbb1f640e95c2213521d58fff0c5141e320d6391c3db5697ba0
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 0.9865

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.tw/app/431946152/free-robux-generator-no-human-verification-for-pc-game-hack PDF link annotation
    • http://jasperfirstumc.com/images/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/rise-of-nations-hack-roblox_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/robux-survey_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/minecraft-116-free-download_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/free-robux-android_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/minecraft-116-free_GM479516143.pdfIn PDF document text
    • http://jasperfirstumc.com/images/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://jasperfirstumc.com/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jasperfirstumc.com/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://www.communes.comIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000511a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x511A 24316 bytes
SHA-256: b13c618cc023e5679bb8ba33f17d53d0a0e1d2bb41c6aa6bdedf2dd54abee544
font_01_sfnt_off00008821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8821 19012 bytes
SHA-256: f86624c05e3e9cb7f5bbff332760dac8c2bf7ff091ea22620c382ee18dfc447e

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