Malicious PDF — malware analysis report

Static analysis result for SHA-256 70a93fcf2465bc32…

MALICIOUS

PDF

34.0 KB Created: 2020-08-23 06:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e231b1688632145fecdfdc40db8e97b SHA-1: 318ced92152bf4782959717158bf95d35f3b3caf SHA-256: 70a93fcf2465bc327139fc19b686d74861bc9264a292e5ba5aa6d86484bce6f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector to a malicious URL, suggesting a phishing or scam attempt disguised as a software download. The ML classifier strongly indicated maliciousness, and the presence of numerous embedded links points towards an attempt to distribute malware or lead users to malicious sites. The primary malicious IOC is the redirector URL.

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=sql+server+2016+sp1++iso In PDF document text
    • http://files.jeffersonchoralsociety.org/uploads/1/3/1/4/131453715/davuxis.pdfIn PDF document text
    • http://files.enactyourfuture.com/uploads/1/3/2/6/132681460/4547535.pdfIn PDF document text
    • http://files.uhuconservancy.com/uploads/1/3/2/7/132712282/3316066.pdfIn PDF document text
    • http://files.wellness.org.sg/uploads/1/3/1/4/131437249/7598015.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/1/0461/7057/0915/files/canon_pixma_ip100_driver_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5473/4241/files/ryobi_mitre_saw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3644/1767/files/public_policy_making_in_nigeria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5370/9472/files/gravity_form_css.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0334/7098/files/28397911339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/akutagawa_short_stories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/57504858202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/zevab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3130/files/wukefuvijisudaboziluwukil.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 8

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_off00004825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4825 5372 bytes
SHA-256: 6587f4e856de8b59d26a0608af11b95704b5765e9304c2d15e5548eebf7a2338
font_01_sfnt_off00005a8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A8C 9648 bytes
SHA-256: 08f55fafed2a510cd74b2ca157c7edc930899a0e63e16d0627c1d57b683e2b62

Open this report in the interactive analyzer, or submit your own file for analysis.