Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b6673169f939555…

MALICIOUS

PDF

41.3 KB Created: 2020-08-21 03:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b2920e6a4be5e5b85e48782675264c32 SHA-1: c6392cd41dea9b4961de3f48687dd85eb9f1174e SHA-256: 0b6673169f9395551bcfdc600f839a9e07ad437be0877763132256766e065b7a
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body and embedded links suggest a lure related to 'Android 8 go', likely intended to trick users into downloading malicious content or providing sensitive information. The presence of multiple external links, including a link farm, indicates a coordinated effort to distribute malicious 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.com/pify?keyword=android+8+go In PDF document text
    • http://xebowez.lanefchocolate.com/uploads/1/3/0/8/130874278/bab030d084bc35.pdfIn PDF document text
    • http://temepa.sweetwoodpsych.com/uploads/1/3/1/4/131452883/d1c1ff1.pdfIn PDF document text
    • http://files.lidgettandbeyond.org/uploads/1/3/1/3/131398134/rodenak_jugagisedopujon_banere.pdfIn PDF document text
    • http://zojiwinar.drwesparham.com/uploads/1/3/2/8/132814930/golur_fijubi_mumosu.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/1/0435/3651/5224/files/guwujavuvekukafonopemofij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/wodemomeseje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/bisenijafubapaparo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5309/5844/files/56618953503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9312/2460/files/kulapupotulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1341/3791/files/ceconomy_ag_annual_report_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6640/0666/files/34663131872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7546/0515/files/ac_market_2017_new_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3303/files/kagotusibeni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/15319447302.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 5

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_off00006499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6499 4756 bytes
SHA-256: ef049dae32df7976172f35b81f79aff163c26f0cceedb2c4da4a97097b8c7de0
font_01_sfnt_off000074cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CF 10388 bytes
SHA-256: 99b734e8e0e1e40bd737ad5deaf0b64211685a0bc513f230cf49d77e27d148d4

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