Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4be0317873f986d…

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 02:30:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 0269e2d89657132bc4a5cb83e39a1ece SHA-1: a93cdc83d3c0cfbc2685b66491f06ce8f3f81c10 SHA-256: a4be0317873f986d2dcfdb3e41db3406041ccdfb75d9d77861a6c9d4282d3dcd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that are flagged as malicious redirectors, specifically promoting game hacks and generators. The presence of a download button lure further supports a malicious intent to redirect users to potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 http://netcdn.tw/app/431946152/change-roblox-username-free-game-hack In PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-roblox-glitch_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/someone-hacked-my-roblox-account-took-all-my-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-get-free-robux-no-tix_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/minecraft-items_GM479516143.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-hacked-kids_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/roblox-money-hack-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://balitgetas.co.id/pustaka/repository/free-robux-with-no-verification-2021_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_off00003300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3300 22608 bytes
SHA-256: c178ce59f3d02660522882c940c359257326430ddb041fc7981b627f85366379
font_01_sfnt_off0000652c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652C 19076 bytes
SHA-256: 1bdd51184a9c6bb85c9d1cf83f4ed7dc8ea439ae04926389527e61f65bf1338e

Open this report in the interactive analyzer, or submit your own file for analysis.