Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6ff4807e7d8a4e7…

MALICIOUS

PDF

40.5 KB Created: 2020-08-14 05:27:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b420239fdd165399b171a3502cc6ad65 SHA-1: aceef16085624fd658f0300676800c8d946ee602 SHA-256: d6ff4807e7d8a4e798503ecab4d549b5fa9d13ed0c852989740863210aef9b17
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a software update for Acrobat Reader, aiming to trick users into clicking it. The document body and heuristics confirm the presence of this lure. The link redirects to a URL hosted on ttraff.cc, which is flagged as malicious. Additionally, the PDF contains a large number of SEO-optimized links pointing to various PDF files, likely for link farming or to obscure the malicious redirector.

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=acrobat+reader+9.+1free++for+windows+xp In PDF document text
    • http://xezefaxa.craigmorelocksmiths.com.au/uploads/1/3/1/4/131483068/zuvikidenobudaxoruru.pdfIn PDF document text
    • http://rogokemob.helena-yang.com/uploads/1/3/1/6/131606027/witodikikev.pdfIn PDF document text
    • http://files.crossroadsranchlucasiowa.com/uploads/1/3/1/3/131384401/tosozo.pdfIn PDF document text
    • http://jimugib.uauto.solutions/uploads/1/3/1/0/131070722/biluzewi.pdfIn PDF document text
    • http://files.mymakeitfit.com/uploads/1/3/1/4/131453022/bixaxika_nuvikikijelobif_volavenobu.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/1/0429/8512/8099/files/garmin_nuvi_2597lmt_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/sarujafobodewebidifani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/solikejokete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/45428780761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/bawisowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4184/8470/files/lumosar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/maparijolurix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8942/3525/files/cessna_210_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4501/8017/files/powalikexakanuxupimofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7853/3788/files/kalozeneridifowenuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0586/2307/files/tibozeba.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_off00005e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E49 5644 bytes
SHA-256: b44af3a8e3c5a94ae0faf403fffe3a20ce2bbb1a3d45e9acd756aa72afb3eb84
font_01_sfnt_off000071a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71A4 10444 bytes
SHA-256: c01b249be8b22798a6fb7bdc92c10787810edddfa7f7ba46963ca0ae8883b0fe

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