Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec115695c3d5403f…

MALICIOUS

PDF

46.2 KB Created: 2021-05-11 06:00:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: e52ec8b32b2fb0464f76c0dc2cc8068b SHA-1: ad22a8f6e215a6b8a5cf47c083132e8f16ba1f32 SHA-256: ec115695c3d5403fea14d246089d22ea58e70ce63324bdb7a0eade859864d19d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free Robux and game hacks, directing users to a known malicious redirector URL. The embedded content and heuristics indicate a phishing attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the document's structure and linked URLs strongly suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/431946152/free-robux-hacks-no-verification-game-hack In PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/minecraft-114-download_GM479516143.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://santjoandelesabadesses.cat/images/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000486b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x486B 26904 bytes
SHA-256: feab3b017029e8667bcf3b050e47774d3dc43a44d0d27e4f41fdbe11db5a7979
font_01_sfnt_off000085f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F9 3096 bytes
SHA-256: d05729863dc05721ada29044278030255eeda038236568e8246a87d3a8573d6e
font_02_sfnt_off000090a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90A4 18772 bytes
SHA-256: addbd32849de550f6a3cbf56c70cbffa7cf804e2f09d57d2f784457513eafccd

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