Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e19d2ce9b3ad131…

MALICIOUS

PDF

56.9 KB Created: 2020-08-08 08:40:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 437176095715605fa2309f703105ba7c SHA-1: 9dd74a9b30002d51188aa9a10240319d5eb83d5b SHA-256: 8e19d2ce9b3ad131fa44e5e124c30d0ab9c15d37fa738893757a0df7e95e7d47
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the ultimate destination. The document body, though heavily corrupted, contains the string 'computer all full form pdf file download' and the malicious URL, suggesting a lure for users seeking specific file types. The presence of multiple links to external PDFs, some hosted on Shopify, further supports the SEO poisoning attack pattern.

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=computer+all+full+form+pdf+file+download In PDF document text
    • http://files.the-hafizova-hive.com/uploads/1/3/2/6/132696465/dubalutul.pdfIn PDF document text
    • http://files.jennawatt.co.uk/uploads/1/3/0/8/130813364/zatir_lelanunaxizofar_zagajukuvofek_sakotolubavov.pdfIn PDF document text
    • http://files.garretreich.com/uploads/1/3/0/8/130814043/41492c966.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/1/0437/6579/2929/files/5680965032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/62307445800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5575/7977/files/administrative_procedures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1193/8216/files/23786684403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/53430780671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3693/2253/files/nojetomogobur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5840/4245/files/house_of_gold_uke_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/learn_all_guitar_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/vorevozedoguw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/86986844401.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7917/files/zezukoremil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8118/files/biduloxexatewibujate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2943/8370/files/vijewoma.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7030 5004 bytes
SHA-256: a476d641525a41b3561ccd43f77667b23f7a41baed78be0bced213884580242d
font_01_sfnt_off0000812b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x812B 3720 bytes
SHA-256: a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9
font_02_sfnt_off00008c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C83 2092 bytes
SHA-256: 0f740872c9ba99ba2808e86ca1aa710947acf25eef927d3004a187dd3557d740
font_03_sfnt_off00009629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9629 15172 bytes
SHA-256: 9acbcf6013450c1e2add351b97434583528df07e461c00a53eaff391ee854772
font_04_sfnt_off0000c4eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4EB 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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