Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f2a6214cf1860d…

MALICIOUS

PDF

46.0 KB Created: 2020-08-21 22:46:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5105ef8c81989e3027c85d56a7d370e6 SHA-1: 40472d47fb1a800c4b7fa52e11286a53a4920f54 SHA-256: 42f2a6214cf1860d462faaa2964bbd2a34c4a401624c080a758211c3b0f2bddb
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bloodborne+dlc+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to lure users to malicious infrastructure via a deceptive link.

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=bloodborne+dlc+guide In PDF document text
    • http://files.eastcincyogaschool.com/uploads/1/3/0/7/130738988/fanewidop.pdfIn PDF document text
    • http://konuf.coheartgallery.org/uploads/1/3/1/3/131381021/320029.pdfIn PDF document text
    • http://foken.barbzipperer.org/uploads/1/3/0/7/130775380/d4056548b.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/1/0438/4397/7366/files/bitaziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/dudutozilorigasozamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6220/6357/files/rudolakevaketesiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/install_gcc_ubuntu_16._04.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/libodezeguku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8624/0162/files/37456226117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3342/0199/files/ponijodapebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/nexano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7295/4269/files/4166785735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4942/5823/files/differential_and_integral_calculus_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/oral_b_triumph_professional_care.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73470001672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3942/4665/files/pasagalasujunovadek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/55031229163.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6331 5704 bytes
SHA-256: 5a85f7b6c74768e7696ddad0d0dd5e5835440aaceca158e6508cdd7b64071495
font_01_sfnt_off000076d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D8 4908 bytes
SHA-256: 2de2fd2a5ba4d67f6978d9b79fbc90db2c49d8c2e561ab31c9b8ff23369dd49b
font_02_sfnt_off00008796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8796 10380 bytes
SHA-256: 5c6a4192b43c740d5cd2f2c444ccc1b234f31f1fbdf25079b51c3bab7040705e