Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e45d3ac22606e2…

MALICIOUS

PDF

44.7 KB Created: 2020-08-01 10:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2943b691a4b0115912a14c1b61a5378a SHA-1: 7844015715e6109fb1bed0d3d9f3aec6a862fff6 SHA-256: c5e45d3ac22606e233a3b1bf6e4803394757bbcd90a9fac65685c04d798c7217
202 Risk Score

Malware Insights

MITRE ATT&CK
T1200 Hardware Addends T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a prominent link disguised as a 'Github cheat sheet' that redirects to a malicious URL (ttraff.com). This URL is flagged as a malicious redirector. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the final malicious destination. The presence of a visual download button further supports a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.com/pify?keyword=github+cheat+sheet In PDF document text
    • http://files.penwoodbrands.com/uploads/1/3/0/8/130873758/949b9fa02274.pdfIn PDF document text
    • http://files.wildthingyogaboutique.com/uploads/1/3/1/4/131453560/puvarupugo.pdfIn PDF document text
    • http://files.kristinedizon.com/uploads/1/3/0/7/130739919/tutusupefav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6974/4028/files/72152798287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/dimupifufomenurimif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7103/6835/files/buvevule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2208/files/50001736466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9991/2344/files/xorizopetomuzoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5499/files/javepadan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/7161216227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0836/8545/files/it_s_always_sunny_season_11_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1567/5809/files/javarejixejenug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/xeditojevawasetuborifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/46233050647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rajijabobuzev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2630/0577/files/65240925818.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59AC 4928 bytes
SHA-256: 5e1c38096c0d76620d362e41ae997260f9ffbf5cdb7e83f29e48f5546b188132
font_01_sfnt_off00006a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A74 10088 bytes
SHA-256: 74a7beeaab97e39d419cd8fc89ba42fa56b6313223334bb86b1cc0ee191fc9d0
font_02_sfnt_off00008d35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D35 17284 bytes
SHA-256: b34e58827bf2d2bd8677f3ae58bddabc67e8b71553e5ac1c8f05e3fd347ddceb