Malicious PDF — malware analysis report

Static analysis result for SHA-256 068ba4282c68cdf9…

MALICIOUS

PDF

40.8 KB Created: 2020-09-13 04:10:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00ebcfc8637723d7437ae3a3b7cee891 SHA-1: 28883916a529216ebebaeeb1e4fe2f0f123a158f SHA-256: 068ba4282c68cdf98c66218979ed4ede7f39baed5b686b228dc9ba4b94001cf7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, forming a link farm designed to improve search engine rankings. One of the primary links directs users to a redirector URL, which likely leads to malicious content or further phishing attempts. The ML classifier strongly indicated maliciousness, supporting the heuristic findings of malicious redirector and SEO link farm activity.

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.me/wix?keyword=similar+triangles+applications+worksheet+answers In PDF document text
    • http://kikokir.therosievida.com/uploads/1/3/0/8/130814515/lizetasob.pdfIn PDF document text
    • http://wipikuw.stpatrickscatholicpreschool.org/uploads/1/3/0/7/130740151/b7305c36d20649.pdfIn PDF document text
    • http://rurazo.zoneadvisory.com/uploads/1/3/0/8/130813669/finom-tuzisogepixozoj-dezibaxepib.pdfIn PDF document text
    • http://gadepe.100wwcfranklincountyvt.com/uploads/1/3/1/0/131070442/jesajofalutuvi.pdfIn PDF document text
    • http://jemazozan.travelvideofi.com/uploads/1/3/1/1/131164159/rukifuzidi_jutufakevilen_gumobanavafovop.pdfIn PDF document text
    • http://files.urbanreach.com.au/uploads/1/3/1/3/131381277/a945082.pdfIn PDF document text
    • http://xazosi.reinhardtbproductions.com/uploads/1/3/1/6/131636772/wowowidomu_forinepizeru_telosarotenol.pdfIn PDF document text
    • http://files.rmsraiders.com/uploads/1/3/0/7/130739452/8d2d61.pdfIn PDF document text
    • http://fowum.christenenos.com/uploads/1/3/1/4/131437363/4738751.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/8a9bcc_ae41f92cf5a346a2ae83b4ad15834811.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/72216b_9c81ce1a40094611a35f52147d426420.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/956c05_d368538dd2d44d13b1aa543203bc10d3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/99965f_093f185db14b4f1496cf3d7914a2e02c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/79cb75_380ee2bdf697408fb9924095d1c64507.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 6

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_off0000606f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606F 5604 bytes
SHA-256: ed7df33bd8a9f825723571c74bb46cb7e24e346dcb2a3aeac37be6352f567bf4
font_01_sfnt_off00007362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7362 10184 bytes
SHA-256: cc87f16e7ad3df70e3dcfec08dee47bae66d28040270c20e2e2b96f8af978bed

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