Malicious PDF — malware analysis report

Static analysis result for SHA-256 6436e192a9e353ea…

MALICIOUS

PDF

72.3 KB Created: 2020-08-07 06:22:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e201ba0a1c08cb36efbf0b144d0c8708 SHA-1: b484d92e8692c9c6e75f1ee91bed9d247538cea5 SHA-256: 6436e192a9e353eaf52919edef8632771ab86ce3be98bb580e86beac0c3ecdc3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) known to host malicious content. The document body itself is largely obfuscated but contains the same redirector URL. The presence of a large number of external links, including a link farm, suggests an attempt to distribute malicious content or conduct phishing operations.

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=asma+fisiopatologia+pdf In PDF document text
    • http://files.kelseyblotter.com/uploads/1/3/2/6/132681488/4997005.pdfIn PDF document text
    • http://files.maryfan.com/uploads/1/3/0/7/130740624/wugimegedebopudipana.pdfIn PDF document text
    • http://files.mcclainmatthewsinsurance.com/uploads/1/3/1/0/131070207/1b4560553d4229.pdfIn PDF document text
    • http://files.rockymountainluxepuffpoodles.com/uploads/1/3/0/8/130874588/tovazuwewaduzez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/2166648246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0658/3203/files/bukotinagoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/lipop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2763/5096/files/12170741846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/flip_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/discord_server_setup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3757/6603/files/windows_server_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7687/7478/files/pemiboxenorazadeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/davunaxejapezuxipuwuwozom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/64741989288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1095/7210/files/linus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/lonanagujugaxog.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E5 4820 bytes
SHA-256: b4894a667aa09f7f4bf6048c5ab9c44d68898665295fb1bd480b4c3fff51955b
font_01_sfnt_off0000e247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE247 10604 bytes
SHA-256: d03b941999c63426809a2183bb61726a916863544b38ac7dd3cca47bf71185f6
font_02_sfnt_off0001064b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1064B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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