Malicious PDF — malware analysis report

Static analysis result for SHA-256 66592a86eb002162…

MALICIOUS

PDF

42.1 KB Created: 2021-05-15 14:43:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: a94990a9d29aeff1eff76298b27b4e8b SHA-1: ae5f2b3aba42a56798035fb209d205586573c6ee SHA-256: 66592a86eb00216220eba0cea81421c5de199f6fdf99cf05344f752f0e234d95
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on domains associated with link farms and redirectors. The document body and embedded links suggest a lure for "hacks" or free items related to popular games, indicating a phishing or scam attempt. The presence of a malicious redirector link further confirms the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/coin-master-hack-apk-3.5-18-game-hack In PDF document text
    • http://smoothjazzclub.net/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/how-to-get-coin-master-free-spins-in-email_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://smoothjazzclub.net/images/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://smoothjazzclub.net/images/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/easy-robux-generator_GM431946152.pdfIn PDF document text
    • http://smoothjazzclub.net/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://smoothjazzclub.net/images/spins-coin-master_GM406889139.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_off00004a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A60 24044 bytes
SHA-256: c3a3f6e4c31aff6fb3460f1fad366e530c134396e28f7039d30617f9d0a37bdd
font_01_sfnt_off0000810f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x810F 18584 bytes
SHA-256: 713a301d70f86388f4bd8aea956833d7b06d6a967d700e365eefcc159a0c525c

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