Malicious PDF — malware analysis report

Static analysis result for SHA-256 3be5fae18408c4d6…

MALICIOUS

PDF

46.6 KB Created: 2020-08-24 06:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 376f43cdb54f9c6ef25a00a1e56c5b59 SHA-1: ede321fa39197d64e8c6369672fb371295fdbba6 SHA-256: 3be5fae18408c4d6dbe0f71187312b82cc0b4037b15249eb3c89af38cb6aa643
194 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Union budget 2019 pdf study iq' and embeds multiple external links. One critical heuristic indicates a malicious redirector link to 'https://ttraff.ru/pify?keyword=union+budget+2019+pdf+study+iq', which is the primary indicator of malicious intent. Another critical heuristic flags a PDF link farm hosted on cdn.shopify.com, suggesting an attempt to distribute content or mask malicious links. The document body, though partially corrupted, contains the malicious URL and references to 'wkhtmltopdf', indicating it was likely generated by a tool. The overall pattern suggests a phishing or redirection attack aiming to lead the user to malicious content.

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=union+budget+2019+pdf+study+iq In PDF document text
    • http://files.breedingforthefuture.com/uploads/1/3/2/6/132681566/sutavumuz.pdfIn PDF document text
    • http://katus.deliverydoula.com/uploads/1/3/1/3/131383483/gazurebafel-gowujiremezogo.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/1/0430/4610/9345/files/53517687423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/54632342082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8638/0189/files/30964071636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1351/9006/files/norirow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/56632055767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/96694619569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8348/9687/files/nascar_racing_games_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2382/5053/files/project_diva_x_song_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/metefori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8288/4006/files/fasajigenapoxagebigofe.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_off0000751e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751E 5712 bytes
SHA-256: f24834108c1ff4292aef4fdba38c8acfb10b76d9749b50b7c61abf5194aef3dc
font_01_sfnt_off000088ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88AC 10840 bytes
SHA-256: 26ad5c3c195b6409631e3cc7ad38f921fed1571b469fd162a914c9f402c26fe7

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