Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5bc9e16b9882b4…

MALICIOUS

PDF

50.0 KB Created: 2020-08-08 23:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5bc943c07871c988d4dc9c9cd34253a SHA-1: bc6b5605409631f6441cc0f372a4d5a83fd3ec3e SHA-256: 7e5bc9e16b9882b4c6ef86df89cb67e8e60f845ce7cf37d2457b4c55ee08f195
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector. The primary redirector URL, 'https://ttraff.com/pify?keyword=b+oxidation+of+fatty+acids+pdf', is designed to lure users with a seemingly relevant search term. The document body, though heavily obfuscated, contains this URL, suggesting the intent is to drive traffic to malicious infrastructure. The presence of numerous other PDF links further supports a link farm or SEO manipulation tactic.

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.com/pify?keyword=b+oxidation+of+fatty+acids+pdf In PDF document text
    • http://pobefan.scbamo.com/uploads/1/3/1/3/131398091/c3a58d7.pdfIn PDF document text
    • http://fabaw.bigdogrottweilers.com/uploads/1/3/0/7/130776407/3921488.pdfIn PDF document text
    • http://files.stevenmmillerphotography.com/uploads/1/3/1/3/131398447/pojoven-dobagawexolufab-mizur.pdfIn PDF document text
    • http://files.nextlevpro.org/uploads/1/3/0/9/130969772/garoz.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/1/0434/3971/8552/files/lezomizixezute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/zunuzurebewidud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8869/0844/files/gugojawewavalurowit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0937/4365/files/4711819147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6881/5528/files/sports_cars_under_10k.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/29004470998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/44726521853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5143/4652/files/xemadipuxamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3847/4397/files/gujelobaxobazim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/janexovipokupadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/virefegiradivavow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/16279216555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4227/4454/files/car_salesman_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/xewezegix.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_off000085a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A6 5240 bytes
SHA-256: d65af6ffe77b075141e69e3e4a08c86f20dc18a8727e21a4bbbc8793027de08b
font_01_sfnt_off000097a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97A9 10340 bytes
SHA-256: e52aec658e0d145824f7929f4b8582c9e6d5b1b7ddbe842f5de77bfb00e98dcf

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