Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8d0bd2f8e027d5c…

MALICIOUS

PDF

35.9 KB Created: 2020-08-12 05:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff6fe773d1ecbb12e7166be18afef04e SHA-1: 4957385264b3d6aed0299310810919739171250b SHA-256: c8d0bd2f8e027d5c9c87b010116dee73073da6e86120032ab716a64a445f10e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many of which are hosted on cdn.shopify.com. The primary malicious URL is https://ttraff.com/pify?keyword=bitzer+semi+hermetic+compressor+catalogue+pdf, which is likely used to redirect users to a malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=bitzer+semi+hermetic+compressor+catalogue+pdf In PDF document text
    • http://files.cswithwhitlock.com/uploads/1/3/1/4/131406234/zufanumur.pdfIn PDF document text
    • http://files.dirfloortimecoalition.com/uploads/1/3/1/1/131164016/mebalefafigiso.pdfIn PDF document text
    • http://files.fineartbyrachel.com/uploads/1/3/0/7/130775959/vumadolapabi.pdfIn PDF document text
    • http://files.theadventureawaits.com/uploads/1/3/0/7/130775953/3651408.pdfIn PDF document text
    • http://files.maggiewaltondesign.com/uploads/1/3/2/7/132740805/b730655c5.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/1/0431/2308/1373/files/the_life_of_the_buddha_bhikkhu_nanamoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/38181479803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7689/3334/files/76611261372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4425/7442/files/xawibilej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/kazofuzopafozodobowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7673/8462/files/14949587414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15518423203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9085/files/6959710239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0922/6398/files/wuxefetonapomeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4414/3253/files/32570432375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1342/2753/files/18494316320.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F7D 5668 bytes
SHA-256: fe8e26815b518c96c6f85535f7f2a8b6ec3eb60f8feaa2bc8a220708aa034ab5
font_01_sfnt_off000062a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A6 9308 bytes
SHA-256: 10c4c185415dab63ee496d56f1f6f22f51a0cf4046f8a800f9a82b598acff3e7

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