Malicious PDF — malware analysis report

Static analysis result for SHA-256 8199f3044047553d…

MALICIOUS

PDF

41.8 KB Created: 2020-08-22 00:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5dae4c476dee5bd608d2e96e7a25f9fd SHA-1: e6ac497f626641d13e62cf59be53b539d78377e0 SHA-256: 8199f3044047553d64ab6f02071dbe93f155a998285113e48bc794371af67747
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, appears to contain the same malicious URL. This suggests a phishing or scam attempt using a link farm 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=iron+on+blackletter+font+free In PDF document text
    • http://polorik.charliesblackpudding.com/uploads/1/3/0/7/130775432/67a3f27226b82.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/1/0431/7482/2043/files/5173825114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/oracle_forms_java_license.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/46922572383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/jaspersoft_reporting_tool_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/32600198463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/carrion_crown_player_s_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5507/1900/files/streaming_platforms_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3186/3202/files/ccna_sample_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/tudazerafobulofidulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/58475676272.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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5112 4836 bytes
SHA-256: 784b686534f8b491a7ff656660327375b33678eb2e1273958c2c7e25d95b816d
font_01_sfnt_off0000618f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x618F 10464 bytes
SHA-256: 10c31d89950db360d31d0226827d65977737206b5b2dce36fe283c9b6ed47f73
font_02_sfnt_off000085b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B3 16084 bytes
SHA-256: ff88491e9b53368aa3a30e8dd34a5b3a2a650623abbadb69eae8d512e7150c33

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