Malicious PDF — malware analysis report

Static analysis result for SHA-256 625f0f878bb30f89…

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 15:19:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 56d5a532e6f5484985d67a586a0f5407 SHA-1: c8bf1aad04903a75a7a371dec139d7a8c28576ed SHA-256: 625f0f878bb30f8936a4705311101f7dda5020d6f07e7868c02ca5a53137ce4f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with a high-confidence heuristic identifying it as a 'game hack' lure. The document body and extracted URLs suggest a social engineering tactic to trick users into visiting malicious sites, likely for further exploitation or scamming. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-to-get-free-food-on-coin-master-game-hack PDF link annotation
    • http://behsanroshd.com/images/haktuts-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-official-page_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://behsanroshd.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://behsanroshd.com/images/all-free-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48D6 26536 bytes
SHA-256: 576611ef6596d193617e97abe3274b25cd388be5853ff9c6e012fe990e3ff1df
font_01_sfnt_off00008632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8632 18048 bytes
SHA-256: 80f71b64fdae1376f671ee29083f27768c0f143acc59e91e746c89af89705883

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