Malicious PDF — malware analysis report

Static analysis result for SHA-256 28764ea859a3d2a5…

MALICIOUS

PDF

44.9 KB Created: 2020-08-15 01:27:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b7e24b9d534f35acceda761fd2b323f SHA-1: a171987be7603ff03de5344673b39df0de12f991 SHA-256: 28764ea859a3d2a5f0428561551bd35c5d5fbf07549d7e1bee5ea051f8985288
194 Risk Score

Malware Insights

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

The PDF file contains a lure for a "content plan template for website" which, upon closer inspection of the document body, links to a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, identifying the URL https://ttraff.cc/pify?keyword=content+plan+template+for+website as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, with the first identified as https://cdn.shopify.com/s/files/1/0450/1933/2766/files/zatevuzugesik.pdf, suggesting a link farm or distribution mechanism. No scripts were extracted from this sample.

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.cc/pify?keyword=content+plan+template+for+website In PDF document text
    • http://files.benewahhumanesociety.org/uploads/1/3/0/7/130776487/7711739.pdfIn PDF document text
    • http://vebexi.valentinastexmexbbq.com/uploads/1/3/1/3/131384281/2147500.pdfIn PDF document text
    • http://files.midwifeaddison.com/uploads/1/3/1/8/131856166/lixenufadoxugu_raxikilo.pdfIn PDF document text
    • http://files.designsbydinius.com/uploads/1/3/0/8/130814397/sodedavuz_vapevaxewitokov_fexufatores_tevodijapaw.pdfIn PDF document text
    • http://nawez.8870adventures.com/uploads/1/3/1/4/131438324/5754896.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1933/2766/files/zatevuzugesik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4231/files/autosys_job_scheduler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7801/7443/files/61805976898.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8761/8463/files/64772662174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5554/6517/files/vopaxopoguzadexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4194/7801/files/themes_in_south_african_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/52345642825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4310/2618/files/libro_almas_gemelas_dulce_regina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/building_control_regulations_1997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4586/2041/files/asterix_en_italia_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7414/files/vande_mataram_movie_songs_320kbps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1301/2637/files/56572600301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5108/1118/files/giwazi.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000644f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644F 5088 bytes
SHA-256: d7fd2339c424415e66a9e77bd52395f730a981d9f89041fdef966adcc546e59f
font_01_sfnt_off00007589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7589 10144 bytes
SHA-256: f130609de0f601da3cd50c480d31c94d4fa8e941a0b4e02c73e63d3b5599af83
font_02_sfnt_off0000983a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x983A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2