Malicious PDF — malware analysis report

Static analysis result for SHA-256 261ebddb4d6811cb…

MALICIOUS

PDF

38.0 KB Created: 2020-08-17 02:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c95b8bfc1f68da17ded98f1a6b2e7e3 SHA-1: e990e44d1180fe1776f7435abb6525d3df1fcb76 SHA-256: 261ebddb4d6811cbd440f15210581c28e9c26aab5ce245a7d983c8961c1e3554
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a 'gastric sleeve recipes pdf' download. The document body and embedded links are part of a link farm strategy, with the primary malicious URL being https://ttraff.cc/pify?keyword=gastric+sleeve+recipes+pdf. This suggests a phishing or scam attempt to redirect users to potentially harmful 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.cc/pify?keyword=gastric+sleeve+recipes+pdf In PDF document text
    • http://files.westwoodpubliclibrary.org/uploads/1/3/1/4/131454883/0f15766ff1067.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/1/0435/3438/5303/files/pixelmon_soothe_bell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/skyrim_se_bashed_patch_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5670/1348/files/47761282564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8289/9871/files/93883019983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6437/8022/files/child_development_laura_berk_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6871/0294/files/shadow_scale_terraria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3941/4677/files/16695398092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/69143450337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7243/files/fefanasuraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/julanefiwozuxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5829/4937/files/captured_by_the_highlander.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6126/4035/files/zelda_encyclopedia_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/zagejipakokonupit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/hwy_99_traffic_report.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_off00005840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5840 5240 bytes
SHA-256: 82565354b8a38139fb85ff8259c89dbef0d31bf8267db7e5bded91d2ae0b8b63
font_01_sfnt_off00006a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 9652 bytes
SHA-256: 8a7e62dcb017d63c8034e65bbc93f649bb3b425c8a6667485cda3baee28c285e

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