Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c2bb564e168485…

MALICIOUS

PDF

36.4 KB Created: 2020-08-27 15:25:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ca1fd9af57f8ee72fd4354a4171230c SHA-1: 54b3c6cc8bd67f5fd5ce23317db80e4921360e71 SHA-256: e3c2bb564e1684851c24df5dcfe73f9021455549f5ddb35ea3958402d8af7b3f
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/pify?keyword=industrial+plastics+theory+and+applications+download'. This indicates the document is designed to trick users into clicking the link, likely leading to a malicious site or further payload. The presence of a PDF link farm heuristic further supports the malicious intent of distributing links.

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.link/pify?keyword=industrial+plastics+theory+and+applications+download In PDF document text
    • http://files.spencerkezhouxiao.com/uploads/1/3/1/4/131453143/2276506.pdfIn PDF document text
    • http://dureneru.johnjfrederick.com/uploads/1/3/1/4/131437092/91cc0e435.pdfIn PDF document text
    • http://lidenakej.alextechinfoforstudents.com/uploads/1/3/1/8/131856333/zijerozifonerofoku.pdfIn PDF document text
    • http://files.thefaithfulpout.com/uploads/1/3/1/3/131383602/mejar_ridun.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/1/0431/5050/8194/files/nys_math_common_core_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4939/files/79844800132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7546/files/dupalateseti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1358/7622/files/afcat_02_2019_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5588/8022/files/jakoxawibojosabazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2780/files/gifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3863/7208/files/kaala_patthar_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/2407373570.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 4

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_off00004f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3B 5292 bytes
SHA-256: 583dbf92e187483286c9cb5fd8b14ebfadbb362f54b9d1c5e328987dab6b7f54
font_01_sfnt_off0000613c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x613C 10408 bytes
SHA-256: 2e4e10dae5227cb5c396a8fd8b8310e2654a962383e97752465af2babed024e3

Open this report in the interactive analyzer, or submit your own file for analysis.