Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ad89de230dcdfc8…

MALICIOUS

PDF

77.9 KB Created: 2020-08-10 12:27:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 18d21bf87c17db619ede87f5115cdeaa SHA-1: ce1a1ba280d9317447d249059877c54f87a034b8 SHA-256: 1ad89de230dcdfc8ba5c960ea106288f17628351a729825da9a4c5d1d3df63c4
194 Risk Score

Malware Insights

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

The PDF contains a direct link to a known malicious redirector, ttraff.com, which is disguised with a keyword relevant to the document's apparent content. The PDF also hosts a large number of links to other PDFs, likely for SEO manipulation or to spread malicious content. The ML classifier strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be the redirection to the malicious URL.

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=brahmacharya+pdf+in+telugu In PDF document text
    • http://dojiju.christyokeeffe.com/uploads/1/3/1/4/131407668/92d3a.pdfIn PDF document text
    • http://zufako.lot514.com/uploads/1/3/0/8/130814328/6741276.pdfIn PDF document text
    • http://files.donamarafriedman.com/uploads/1/3/1/4/131437666/1009463.pdfIn PDF document text
    • http://files.lifechurchaz.net/uploads/1/3/0/7/130740175/zefibifiz-refufovug-rijol-masegi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/42885725808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/57031642785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/93045544702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/28848559248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0025/1036/files/ketones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/grand_theft_minecart_ip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/adjectifs_possessifs_exercices_franais.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5225/2829/files/xogojunibemuzijizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/16520074357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/jaradarugixagas.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A8 5540 bytes
SHA-256: 760c04d28a9d486904b08f70dde82c413ef8b4dbdf898b65c857c5ff13c65029
font_01_sfnt_off0000ca5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5D 4496 bytes
SHA-256: 688386a78ad67827082fda567bd7b14c729b1199a0ec319183fa78ee915b7412
font_02_sfnt_off0000d8e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E3 16740 bytes
SHA-256: 7426b9e3eda22ef50b0f0759520f089ddd064bf1eb21d423b65caa9473c9b257
font_03_sfnt_off00010a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A6D 9408 bytes
SHA-256: 42a692387290b10d2f3c9f91da8087d744b1f320dc48f7abf24ee348062055b8