Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1b114dfc4e0a343…

MALICIOUS

PDF

33.4 KB Created: 2020-08-07 15:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b42018af950ee0842cde78b8c00fa007 SHA-1: 6530e7e63ec013ea9d29f8eec3d565886fbcb503 SHA-256: e1b114dfc4e0a343c4b41952bc91d89276bc409b2c06b5d61253cd3c5cde0bc9
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, includes the target URL and references 'wkhtmltopdf', suggesting it was generated programmatically. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. The primary malicious IOC is the redirector 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.com/pify?keyword=english+phonetics+and+phonology+carr+pdf In PDF document text
    • http://files.kchristianson.com/uploads/1/3/0/8/130815303/203bfc54fa0.pdfIn PDF document text
    • http://files.swatarachurchofgod.org/uploads/1/3/1/3/131379397/ninanijapaz-gunenigavivezo-posakuzowo-pexam.pdfIn PDF document text
    • http://files.artlynchactingcoach.com/uploads/1/3/1/3/131380868/tagaxe.pdfIn PDF document text
    • http://files.futureproofedcounseling.com/uploads/1/3/1/6/131637477/880d8.pdfIn PDF document text
    • http://rewuge.otellis-restaurant.com/uploads/1/3/0/7/130738531/muxopapofu-zovefir-jafenekujiku.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/1/0431/4542/9160/files/xijafevilemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/94627597492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6209/files/kepikuzivomisazeleda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9607/1589/files/langman_s_medical_embryology_13th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/radasejivunoxovimujivik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6139/3061/files/ncert_11_biology_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/1767403376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/paradise_lost_as_an_epic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.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_off0000446b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x446B 5476 bytes
SHA-256: 022b11e27d3d47fed7095372cba6710ae75505df9ef7065d7df6ca15cf1e2924
font_01_sfnt_off00005717.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5717 9448 bytes
SHA-256: 0b76092764cab42f53c077ea0b882091044c87da0fbb6752ca09d08a631b49d8

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