Malicious PDF — malware analysis report

Static analysis result for SHA-256 8968383659c878b9…

MALICIOUS

PDF

68.7 KB Created: 2020-08-13 19:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 985c0d255987939127cb1b1f718be465 SHA-1: 92b87739164c621f401e24a77cb00a71f4e2fe99 SHA-256: 8968383659c878b997d77d0beb276411565fa2a9134e6414c1f8606a416aad8a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector infrastructure. The document body, though heavily obfuscated, contains text related to a product manual and a URL that is also present in the heuristics as a malicious redirector. This suggests a phishing or scam attempt where the user is tricked into clicking the link, likely leading to further malicious content or exploitation.

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=lavadora%20edesa%20practica%201l-84%20manual In PDF document text
    • http://files.fossilmossbears.com/uploads/1/3/1/3/131398097/8275206.pdfIn PDF document text
    • http://fokemex.charltongolf.net/uploads/1/3/0/7/130739267/f79c17367e2d.pdfIn PDF document text
    • http://wiburise.widebaymotorcomplex.com/uploads/1/3/0/7/130775732/858851191d0.pdfIn PDF document text
    • http://pewabad.farrellsframeanddesign.com/uploads/1/3/0/8/130874365/d66472.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/1/0433/3505/7559/files/gedenixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/10124257533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6243/5745/files/dazivigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/0825/8211/files/ctet_2020_sanskrit_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/wiraduxadudulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0029/9683/files/livro_antes_de_partir_bronnie_ware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/91085781134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/banking_service_chronicle_june_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/laluluzisimivomaxogabodiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/tomonusuwowa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3450/8455/files/ghost_stories_in_telugu_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5077/8275/files/free_download_bemba_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/macbeth_act_2_questions_and_answers.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 3

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_off0000c627.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC627 5584 bytes
SHA-256: 860697ceb0a390ab6cb161b9cecb95dcc63a5380d19c413552e35e1cab4961a2
font_01_sfnt_off0000d92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92D 13876 bytes
SHA-256: 9395dea755b05937697b2b278474fc332a3a161239cd0e152cb540a46747b6c3

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