Malicious PDF — malware analysis report

Static analysis result for SHA-256 1802ede99a8ec94b…

MALICIOUS

PDF

41.0 KB Created: 2020-08-14 14:28:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2b5c4b16937df994b2c907ed2f79a3f7 SHA-1: c835c4083e92fa3d430ed795f90eb7e69b26439c SHA-256: 1802ede99a8ec94b78727f8c63c3a9fd69f05b329af1325a30289e14166c7beb
234 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a primary redirector identified as 'https://ttraff.com/pify?keyword=ionic+bonding+worksheet'. This suggests the document is part of an SEO link farm or phishing campaign designed to drive traffic to malicious sites. The ML classifier strongly indicated maliciousness, and the presence of multiple external PDF links reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=ionic+bonding+worksheet In PDF document text
    • http://files.journeyliving.org/uploads/1/3/2/6/132683267/3017789.pdfIn PDF document text
    • http://files.studioeightsalonandspa.com/uploads/1/3/2/6/132695620/wosemuvomijilatob.pdfIn PDF document text
    • http://jivumi.wholearmorministry.com/uploads/1/3/0/7/130738962/5e887cd4a0.pdfIn PDF document text
    • http://files.missrodeowyoming.com/uploads/1/3/1/3/131383342/2ad3a51565.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/1/0427/6686/0455/files/46089206510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1365/files/goanimate4schools_comedy_world_character_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/kizobomaxavabikum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/fusionner_2_fichier_avec_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9350/7737/files/fajumelob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/nemewalitikorosajigapilum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4727/2098/files/worksheet_english_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6010/9210/files/wget_ignore_robots_txt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4617/4877/files/lilenis.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_off0000627c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627C 5192 bytes
SHA-256: 6349fb2cc28daa8f2bbbbce45a9b0e12f4499e1658fe41b69ca923f0fb916853
font_01_sfnt_off0000742e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742E 10328 bytes
SHA-256: dc13f217c9a8a83b47f674a8416fed43df5079313da53fe00119e52977a3be3b

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