Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9694c9f0de56e92…

MALICIOUS

PDF

35.7 KB Created: 2021-07-01 06:55:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: e98c161bee6f89e9dd1599e66a234b4c SHA-1: 4c8c545ac2b9a0e12f2d54ab5cb8a6a8fa729530 SHA-256: d9694c9f0de56e924d50e12cc5224b5e6b0cf252cfafa12ef247ecd72089afaa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with 'free generator / game hack' content. The primary malicious URL identified is http://netcdn.co/app/431946152/robux-for-free-hack-game-hack. The document's structure and embedded links suggest it is designed to redirect users to potentially harmful websites, likely for malware distribution or phishing.

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.co/app/431946152/robux-for-free-hack-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/optifine-pe_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-whatsapp-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-jailbreak-hack-july-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/memez-hack-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/hacking-forums-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-cheat-codes-for-android_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/jailbreak-roblox-safes-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-do-you-hack-to-get-free-robux_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_002_off00003279.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3279 23376 bytes
SHA-256: db4c3ce065b928783aad3e52007739e51acc63260cbb416556fefd674a14ce16
font_01_sfnt_off00006717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6717 18884 bytes
SHA-256: cfe3a788df8698714da1f4ea851edf47371a9033c1b0180aeb40acd41ec083aa

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