Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c3ed997107bb929…

MALICIOUS

PDF

42.7 KB Created: 2020-08-17 01:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ad84abf917edb2c0916b34a4d54daca SHA-1: 4bdfa5b784417fbacec73e6e055e42310f3b821e SHA-256: 3c3ed997107bb929363cc4c085c931c6563118d482cd6236883cd33ac11e889a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a redirector service. The primary URL, 'https://ttraff.com/pify?keyword=example+of+phase+1+biotransformation+reaction+are', is flagged as malicious. While the document body contains garbled text and what appears to be metadata, the presence of numerous links suggests a social engineering lure, likely to direct users to malicious content or phishing sites. No scripts were extracted, but the link farm and redirector indicate a multi-stage attack.

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=example+of+phase+1+biotransformation+reaction+are In PDF document text
    • http://files.birth-roots.co.uk/uploads/1/3/0/7/130775403/732f2836.pdfIn PDF document text
    • http://files.christinestockediting.com/uploads/1/3/1/4/131437425/d5346a4197ea91a.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/1/0430/3601/6803/files/31017640298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/63070077109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/42751664203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/sims_4_premade_sims.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7787/6377/files/bigekuwezegekanoxuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/konikulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5151/0936/files/administrative_procedures_act.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3669/files/zerulidebazef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6776/7970/files/neporixokusefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/ramikedivetolufisoxopuz.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 6

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_off00006984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6984 5472 bytes
SHA-256: 26caf6eb681827622512898fce942e24c2e813ec235a0f32d3c0c0b110c46c8a
font_01_sfnt_off00007c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0B 9908 bytes
SHA-256: e2f8a61d1420fd0bf243dcf5acd82e8d321ef56bb67a81e8ebc5cfeb683861e0

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