Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b80a0ce6be78d68…

MALICIOUS

PDF

52.4 KB Created: 2020-08-18 18:50:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df036c55527485e20bf69563f9b7fb65 SHA-1: 5cab74a00f3ec6054930035f5891e5ff3a407b14 SHA-256: 8b80a0ce6be78d68ade520fb167fbf2fd11c30a76a5017cc4838368b278b633b
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=vocals+loops+free'. Additionally, it features a PDF link farm with numerous external links, many hosted on Shopify, suggesting a tactic to distribute malicious content or engage in SEO abuse. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of the redirector and link farm strongly suggests a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • 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=vocals+loops+free In PDF document text
    • http://files.stemfutureleaders.com/uploads/1/3/1/4/131453127/ramidepemiruzato.pdfIn PDF document text
    • http://kawag.girlinherbirks.com/uploads/1/3/0/8/130813694/putexegabowe.pdfIn PDF document text
    • http://betado.truplans.net/uploads/1/3/1/4/131452842/kujafazo-jomonanusuwexi-metugisam-gapiloge.pdfIn PDF document text
    • http://fotepup.drinkeuphoriacoffee2go.com/uploads/1/3/0/7/130776617/guxidavesu_zopazipapigi_polebox.pdfIn PDF document text
    • http://files.carchethealing.com/uploads/1/3/1/8/131856380/2832449.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/1/0449/4006/6971/files/bullworker_x5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4896/8090/files/gapugibanajid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5686/5173/files/6443824452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7836/6872/files/sujatepupafawofuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0386/3459/files/xagajix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1737/9745/files/free_consonant_blend_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/13106755315.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B32 6588 bytes
SHA-256: b3260a8b27c40a1c9408c40b3dcfb9ec9ded560232013cbc1ca8de37ebb5a831
font_01_sfnt_off00006bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAC 4972 bytes
SHA-256: 41906b6af4b641835431b8b9db71acc19826447eecd119027e5c511e05519c00
font_02_sfnt_off00007c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C9A 3268 bytes
SHA-256: 167cce252c18eb4ed3f65a1a3bf48dc3c194c4cd7308736aa4e4b1a161727f5a
font_03_sfnt_off000089e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E8 10592 bytes
SHA-256: 712cf6ff7efbfca7e522c5d888917a2dd597a70088c83b17bbfc416d4ec0b77e
font_04_sfnt_off0000ae52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE52 16336 bytes
SHA-256: 12aba8d421747cc7b6f64e0779b2b7b17ec51a7e5f572de6077b2104e12ed3a4