Malicious PDF — malware analysis report

Static analysis result for SHA-256 6be7d86f57cd11f8…

MALICIOUS

PDF

49.7 KB Created: 2020-07-28 06:33:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 179fc3d08683912e48613e515d801830 SHA-1: 30ed6af533093ef82a6ba19c64ae0f57d6ae59c1 SHA-256: 6be7d86f57cd11f82dbe44c1b8f0316d1b9443aba6342fa55330216fd84be10f
194 Risk Score

Malware Insights

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

The PDF file contains multiple links pointing to redirector infrastructure, specifically identified as a link farm for SEO-based phishing. The primary redirector URL is `https://ttraff.ru/pify?keyword=hungry+shark+evolution+mod+game`, which is designed to lure users with the promise of a game mod. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a phishing or malware distribution scheme.

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.ru/pify?keyword=hungry+shark+evolution+mod+game In PDF document text
    • http://files.herdiselmend.com/uploads/1/3/1/4/131455543/8393200.pdfIn PDF document text
    • http://files.louisianaheartgallery.com/uploads/1/3/0/8/130814432/51aba6ad26f.pdfIn PDF document text
    • http://files.shaymontgomerysoccer.com/uploads/1/3/2/7/132710704/b9c739.pdfIn PDF document text
    • http://files.emmamagidart.com/uploads/1/3/1/4/131407668/fujakigevonetomado.pdfIn PDF document text
    • http://files.randomnet.net/uploads/1/3/0/7/130776037/delel-xulowuliluwawan-wagepanonotu-jabejuxa.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/1/0429/8443/9971/files/jelunovitagojajiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/44064320653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vatajimawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/68856444729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1974/7999/files/lipedijevefogavixewirujul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7264/3491/files/98805991575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/zigaliwatujuzaruli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7006/0704/files/41066859291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9212/4572/files/satetelalupapopunir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/8773528585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3983/3767/files/42821887956.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_off00007cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBA 5308 bytes
SHA-256: 810755ff9833c83100b89ca9d57b4451b51aefa9f507504d82568acdfaccf221
font_01_sfnt_off00008e9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9F 13352 bytes
SHA-256: 5d0f7f7b2d0bbbb65198364aced5b4fd618b04590cad5e804efe07be8004ab1f

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