Malicious PDF — malware analysis report

Static analysis result for SHA-256 68f350313ee99160…

MALICIOUS

PDF

53.2 KB Created: 2020-09-04 12:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f40e9c49bc70ccaceed36d19f372bd45 SHA-1: 1649fa84f63fd5ee951ede038ec50a70ce25d33b SHA-256: 68f350313ee99160fe315b416f95f5e0167fd7d3c50e681029542309ebfe5f22
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a link farm, and one critical link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/wix?keyword=alternative+keyboard+for+android', which is also flagged as a malicious redirector. This suggests a phishing or scam attempt, likely using the 'free download' lure.

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.club/wix?keyword=alternative+keyboard+for+android In 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/1/0436/2531/6514/files/pazemasuvavesib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2498/1921/files/nebebuwup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/i_love_you_in_french_formal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9893/8274/files/batewipenewizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9944/5664/files/python_round_float.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1958/files/sodenadabam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8917/files/20767933064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4390/4927/files/bon_restaurant_amiens_guide_du_routard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3977/5128/files/16483761860.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8ac1ab_c3b059fc24bd4eb0a201c28f5e215f18.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/314c35_afea3b0fb94d43a3923c63ad8b9e810b.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD7 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00007ccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCB 5076 bytes
SHA-256: 2ff71f583a8144cf4828c8b7625439b1454e6f5e376f3f628a6a727047b12985
font_02_sfnt_off00008e2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E2F 10520 bytes
SHA-256: dfed45e3962b8f5cf4d29575ac3c06ceb3db9100f112e45b99fb279a2e1ca1ce
font_03_sfnt_off0000b239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB239 16168 bytes
SHA-256: 0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3

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