Malicious PDF — malware analysis report

Static analysis result for SHA-256 101eb51dc7b397b0…

MALICIOUS

PDF

72.9 KB Created: 2020-08-19 23:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b25c0e12c24f0d71bd063854c3865baf SHA-1: 9457dca7b3295df5b7f5674f6d89030c16782054 SHA-256: 101eb51dc7b397b05079164c22f2f412c81686f5ef398342617a8772e5383d25
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or SEO manipulation tactic. The ML classifier strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.ru/pify?keyword=international+public+relations+definition+pdf' is identified as a malicious redirector, likely leading to a phishing or malware download site.

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=international+public+relations+definition+pdf In PDF document text
    • http://levubi.asasmy.com/uploads/1/3/0/7/130775726/7008156.pdfIn PDF document text
    • http://files.harrishomeopathy.com/uploads/1/3/1/4/131453214/6657346.pdfIn PDF document text
    • http://wuxero.snowbc.org/uploads/1/3/1/4/131406390/1eb7c.pdfIn PDF document text
    • http://files.monasfamilyemporium.com/uploads/1/3/2/3/132302870/5871365.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/1/0429/8801/1673/files/revixixoxugonide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2862/6080/files/missed_abortion_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/diy_workbench_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/13267128202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2795/4840/files/sony_icf-_cdk70_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4623/1449/files/case_study_research_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9656/4131/files/135328534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7453/4041/files/liste_ballaststoffreiche_lebensmittel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7127/4146/files/jedamovojukin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5258/1542/files/vorikobugazatutepela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9687/3885/files/jizuvoganizafukupusatew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8077/files/56369456449.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
🗂 Part of campaign: monasfamilyemporium.com 7 samples

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_off0000df0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0F 5224 bytes
SHA-256: 42891f6fcdd97646580183d0b5fca99c3b3378697985a2bcebbf41695566aa33
font_01_sfnt_off0000f0cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CD 10968 bytes
SHA-256: 5363fb2caed4fb7e227f6326bccf79f58cf273d36290c331461503a8d6f2a17e

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