Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0a0c1d4f493e37d…

MALICIOUS

PDF

84.5 KB Created: 2020-08-07 05:52:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e2c13e6ee0299a6a0ea2b2013d88374 SHA-1: 16801e32425343a2f4681d101cfd8b584bfd8e04 SHA-256: d0a0c1d4f493e37dd98fd6d97a374aca7ce6e800be12b9fcc9a6bb3c7c4d2325
194 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, a common tactic for SEO poisoning or distributing malicious content. One of these links, 'https://ttraff.cc/pify?keyword=carbon+footprint+pdf+file', is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL, suggesting it is the intended destination. The file's purpose is likely to lure users to malicious sites via this link farm.

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=carbon+footprint+pdf+file In PDF document text
    • http://files.binghamtonrooted.org/uploads/1/3/1/4/131410158/957721.pdfIn PDF document text
    • http://jabuz.canyonwindfineart.com/uploads/1/3/1/4/131406086/8fb5e6bb5a7.pdfIn PDF document text
    • http://files.hapia2013.org/uploads/1/3/0/7/130776162/2745596.pdfIn PDF document text
    • http://files.hsfhomeconnections-bhaff.com/uploads/1/3/0/9/130969656/jumazitepijuwe_zofiwasufuso.pdfIn PDF document text
    • http://files.mindfuldemocracy.org/uploads/1/3/1/0/131070611/zajeduzep.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/1/0433/7198/7098/files/reverse_a_doubly_linked_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6472/1562/files/tebosekiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7016/0032/files/84452698278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/bugazeketoxomulafadunusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6092/8405/files/kaxeveteniwatulodara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/jasubikeregaxovoxakux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/86250793529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1378/2173/files/ados_module_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5586/4213/files/52848420924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3673/5645/files/47760109025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/tapemenawipatepuranaxuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/brew_install_cassandra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/gubodof.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10542 4904 bytes
SHA-256: 09c46874edef5c53c3eabb7aad1eb0dede846ca3faba3ace454f2d9459be0038
font_01_sfnt_off000115f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115F7 15120 bytes
SHA-256: c7a977bde684987c31a62e16bde3c7893df5c994067bec0a535cb67575de0181