Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7868d5922b59a90…

MALICIOUS

PDF

40.6 KB Created: 2020-08-04 11:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a2e40710c6de749922e2a3e57b293f4 SHA-1: fa9794f5e490a0c8ab146a5c0d6724f9c4f94638 SHA-256: e7868d5922b59a900b8a27a94397c6839ec58dceca8570bf6cca017b81d252a7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=aneurisma+abdominal+sintomas+pdf'. The document body, though partially corrupted, suggests a lure related to 'Aneurisma abdominal sintomas pdf'. The presence of a link farm and a malicious redirector indicates an attempt to lead the user to a harmful destination, likely for further exploitation or phishing. 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.ru/pify?keyword=aneurisma+abdominal+sintomas+pdf In PDF document text
    • http://files.jestersmvp.com/uploads/1/3/1/8/131871614/xevokoreda.pdfIn PDF document text
    • http://files.angusyoungroofing.co.uk/uploads/1/3/1/4/131454501/ef0e88d.pdfIn PDF document text
    • http://files.friedmanfrost.com/uploads/1/3/0/7/130739806/3ed6e28a4.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/1/0430/3483/7149/files/painted_on_my_heart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/12444409437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0273/7318/files/bicarbonate_de_soude_utilisation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9516/files/fanukutemotifekubaxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/puwukuwelifataravulazab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/lawovorewevebudigugulav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/zunafapavenerul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/39025_lbj_service_road.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/zonamevavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/70160349598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/sutugetodapagejenezuzas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/wexizabidebovanuzizobivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/idylis_air_conditioner_manual.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 5

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_off000060a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A6 5316 bytes
SHA-256: 0f8f3718e2f49cba75250a1fa8115f55d7e11888192260b60c64261db301c683
font_01_sfnt_off00007299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7299 10420 bytes
SHA-256: 0e9c58fdf71cf38dfb1cdd901af9fb59af49cd1ae491757abf9403c231c6ab5c

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