Malicious PDF — malware analysis report

Static analysis result for SHA-256 028595178dfc7ba4…

MALICIOUS

PDF

43.8 KB Created: 2021-06-08 08:53:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6a3769f092a64b7593c4377e9d7002cc SHA-1: 6da6eda67911b513ef8e1271c9268c4e2bc7d4f8 SHA-256: 028595178dfc7ba4d132b10e36a0ead2a62d15ef994f71746536f8a4d2fc7838
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, with a primary lure related to 'game hacks' and 'free rewards'. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests the document is designed to redirect users to potentially harmful content. Although no scripts were explicitly extracted, the nature of the lures and the embedded URLs point towards a phishing or malware distribution attempt.

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/roblox-bc-hack-game-hack PDF link annotation
    • http://unsere-beagles.de/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/game-hunters-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/robux-rewards_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://unsere-beagles.de/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://unsere-beagles.de/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/roblox-drive-money-hack_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
    • http://unsere-beagles.de/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/pokemon-go-free-coins-without-human-verification_GM1094591345.pdfIn PDF document text
    • http://unsere-beagles.de/images/free-mods-for-coin-master_GM406889139.pdfIn PDF document text
    • http://unsere-beagles.de/images/broken-bones-iv-hack-roblox_GM431946152.pdfIn PDF document text
    • http://unsere-beagles.de/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://unsere-beagles.de/images/free-roblox-clothes-girl_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
font_00_sfnt_off000050c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50C7 24316 bytes
SHA-256: 30f5cf0ac82b482f49ba2e630fce1bee1f757fc218cdd2a904a4622af9b8c688
font_01_sfnt_off0000888f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888F 18184 bytes
SHA-256: 80579a7f4a9ef6a32b1714be94c93fa49a6e48551849ec557a56ea4dc22603ad

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