Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b86823678167040…

MALICIOUS

PDF

49.9 KB Created: 2020-08-12 03:34:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bd4758b25b6e904c5be153690b98b6cc SHA-1: 0dd4131ca454291a363e5070cf8e01b35770cfcf SHA-256: 7b8682367816704070c9d86efbba6847e61e35aaca69acc6404789ac89a02796
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.com) identified as malicious. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware delivery. No scripts were extracted, but the PDF structure and link farm indicate a malicious intent.

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/wb?keyword=forensic%20pharmacy%20by%20b%20suresh%20pdf In PDF document text
    • http://files.sculptingstudiopilates.com/uploads/1/3/0/7/130738739/32f3ff721ae80.pdfIn PDF document text
    • http://files.lakeodessaarts.com/uploads/1/3/1/4/131454850/e5c64fada536.pdfIn PDF document text
    • http://files.writeproject.org/uploads/1/3/0/8/130874097/5587091.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/kijatuwexikul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6548/3168/files/44403186782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/93661060004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7097/0274/files/convert_to_word_using_apache_poi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/vejofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/bovivoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/data_structures_and_algorithms_in_python_solutions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/zexexitemafavetige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5390/8117/files/30207121445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1766/4674/files/26869061609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8113/6296/files/free_email_notification_sound.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9704/6696/files/jogopanubod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2576/7320/files/59092179664.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000543f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x543F 5360 bytes
SHA-256: 7e4918c80e89c19515542be682beb49b6535ac4b2c177bbee56431288b5c4c2a
font_01_sfnt_off0000663e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x663E 15000 bytes
SHA-256: 6dc4acc210bc8a6ab159bc36a7fa7061a2e0c1a14c8a092ac0933bfb159419c5
font_02_sfnt_off00009572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9572 16164 bytes
SHA-256: 5dc9ed390f12ed626cc6b7d34b48072e742e77445905164704ef3766ecb6c898
font_03_sfnt_off0000aa88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA88 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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