Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f13e209b3d3ad6…

MALICIOUS

PDF

42.5 KB Created: 2020-08-09 04:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0c882b606908ff5a4aa2ed249c1de081 SHA-1: 954dfd2cba6f3efdd52c322dd683d2585775add3 SHA-256: e1f13e209b3d3ad611ac38cc857138567a976b63fc307fdf2c2a47dc79943b07
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, 'https://ttraff.ru/pify?keyword=arms+workout+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'arms workout pdf'. The presence of numerous other links, many hosted on Shopify, indicates a potential link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=arms+workout+pdf In PDF document text
    • http://files.phimi.pt/uploads/1/3/0/8/130874394/4f570e6.pdfIn PDF document text
    • http://files.supercoolyconcepts.com/uploads/1/3/1/4/131437276/d832f548.pdfIn PDF document text
    • http://files.cometsathleticboosters.com/uploads/1/3/1/3/131384025/193607.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/1/0432/0657/4238/files/dadub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/23357527713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8204/6869/files/had_better_should_ought_to_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/english_amharic_phrases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/vilumirujolovow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/clinical_pharmacy_and_therapeutics_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/gubamamulirunawemozekupex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/funowajot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4815/7859/files/walk_behind_sickle_mowers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/befekunimejedixam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1484/7655/files/gta_vice_city_cheat_file.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_off000068f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F3 5092 bytes
SHA-256: 3adc74938fe1e2e99f70b8e664e09638aeffdc61476678beb6294eb39b994d10
font_01_sfnt_off00007a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A49 10248 bytes
SHA-256: 15aaa7571734e87e02f10a941294371e9aada5049ab0bbf31d835888b0d1094e

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