Malicious PDF — malware analysis report

Static analysis result for SHA-256 80785390ff954643…

MALICIOUS

PDF

69.2 KB Created: 2020-08-14 15:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66bb2a3197047fa080d9337971fc490e SHA-1: a12ba10cb0f3f90fe1932ce78559f8f84946f6c1 SHA-256: 80785390ff9546432a03bb61dcc688ffcd2efebfbdaaa052b01b3a95baa42c69
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) and a link farm of other PDFs. This indicates an attempt to obscure the final destination and potentially distribute malicious content or phish for credentials. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=2009+chablis+vintage+report In PDF document text
    • http://files.carlinnalleyfoundation.org/uploads/1/3/1/3/131383775/kavup.pdfIn PDF document text
    • http://files.wctimage.com/uploads/1/3/1/4/131437341/78243.pdfIn PDF document text
    • http://files.happy-wife-spirit-life.com/uploads/1/3/2/3/132302999/14cd780593.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/1/0434/5646/3014/files/chemistry_in_action.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/john_deere_260_backhoe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/pajogusaxulirubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0200/2597/files/24424337637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/gilagefowewesexor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7320/0537/files/57741790400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8497/1173/files/48278488692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2283/4071/files/nafoxoxabiperenosetid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6769/9353/files/ayurvedic_treatment_for_migraine.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://sinhala.sourceforge.net/In PDF document text
    • http://sinhala.cvs.sourceforge.net/viewvc/*checkout*/sinhala/sinhala/fonts/CREDITSIn PDF document text
    • http://www.gnu.org/licenses/gpl-2.0.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E7 3148 bytes
SHA-256: f017ea90f7fbad6a4d1c94f9dc11200f4c3e11b243cb0b4f99b6388aea0e49e2
font_01_sfnt_off0000722a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 5732 bytes
SHA-256: 772fa1a06ebad9d1842ef8145173f95c02051610a245c56f88992493fc804c32
font_02_sfnt_off0000855a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x855A 30400 bytes
SHA-256: 692fc5c3e05c4a2e6467aca4e763c62dac8ce839f63e3d8324f6d2225911e045
font_03_sfnt_off0000c939.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC939 12748 bytes
SHA-256: 1da3e159b789cdf07f450cf9ab38587c6e73bf39810a1b89e61bc512ae806713
font_04_sfnt_off0000f1d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1D6 16132 bytes
SHA-256: 051837a0337477dfbb6902371460c1670985facfce249cf256f6d038aeae7303