Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5517188a6c6cdf…

MALICIOUS

PDF

41.9 KB Created: 2020-08-20 13:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cfe26a76d438dc44af3a83831133377 SHA-1: e040a980a7f4f7a04cf35990bff434fc1c7e86fb SHA-256: 8a5517188a6c6cdff9ce06c33b7e9c1f0546671312d4127630d32ea187647115
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, disguised as a car owner's manual. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm. The embedded document body text also contains the lure text and the malicious URL.

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=2015+audi+q5+2.+0t+owners+manual In PDF document text
    • http://files.lanessamiller.studio/uploads/1/3/0/9/130969061/witoburube.pdfIn PDF document text
    • http://jatizu.josefjakobs.com/uploads/1/3/2/7/132740978/xukuvobirizoj_supitojepubu_nuliwozin_bisegodezevosiw.pdfIn PDF document text
    • http://gokituwa.eraillinois.org/uploads/1/3/1/6/131637881/nexepinalip.pdfIn PDF document text
    • http://files.japeconsulting.co.uk/uploads/1/3/1/4/131406435/3632809.pdfIn PDF document text
    • http://rufiwi.animalintuitivereading.com/uploads/1/3/1/8/131857565/bad1049bffd0fc.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/1/0433/0346/9221/files/laresogoxewivativepebev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5686/files/difotojotevafizexapak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/jiralogogej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0605/files/nesadakebip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/gomerigusidokutiviradejik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/3071/3244/files/design_and_analysis_of_algorithms_iit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/rheumatoid_arthritis_guidelines.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_off0000655a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x655A 5576 bytes
SHA-256: 39520ccb0bcf804e4da47721a581d841df4807ac8735530cf741b108565bc45d
font_01_sfnt_off00007846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7846 10212 bytes
SHA-256: b3297b2d8ee9f8e7271b82a11d36d4b73f1066219d49775181e3baa3b1078e68

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