Malicious PDF — malware analysis report

Static analysis result for SHA-256 e30fc5bdde76857f…

MALICIOUS

PDF

45.7 KB Created: 2020-07-28 23:03:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e13feb369668424b8313ab730165fc0 SHA-1: 70702c55f26a7d7ff238050471a3c61a7598339f SHA-256: e30fc5bdde76857f3e1373507a15cdf40b4d9829030b6849c709991496016886
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 phishing or malware distribution. One of these links directs to a known malicious redirector, ttraff.cc, which is designed to obscure the final destination. The document body, though heavily obfuscated, suggests a lure related to 'scientific process worksheet answers', indicating a social engineering attempt to trick users into clicking the malicious links.

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.cc/pify?keyword=scientific+process+worksheet+answers In PDF document text
    • http://files.carriedolan.com/uploads/1/3/0/7/130776864/9017134.pdfIn PDF document text
    • http://files.eastcoastinferno.com/uploads/1/3/1/6/131636602/e5787da542.pdfIn PDF document text
    • http://files.teamnewbalancegvl.com/uploads/1/3/0/7/130775462/7158037.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/1/0427/4513/5260/files/63099688983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5345/files/jekim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0870/4164/files/1271753092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/10722874783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9966/7099/files/15616355375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sividejujim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/19968779519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/mubekadakixuzokewuxojeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0776/1819/files/fisibiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/75587881154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jezimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/8472679102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2122/files/94257642316.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_off00007603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7603 5116 bytes
SHA-256: 333415cedf96bcdaa81c06dbb6bf00149a8f26850dfc93eff50dc073e6e0bf07
font_01_sfnt_off00008765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8765 10096 bytes
SHA-256: 646d01ad288081f853ebcb4cd967cc66f1432e7d427c0cebd7c8125ee94f26ab

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