Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d2d22bf60dc8911…

MALICIOUS

PDF

42.4 KB Created: 2020-08-10 14:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ac11b7ae51a377c001fead61717417b SHA-1: 314a547ce3e05cc169621e413d728cca7f1938d0 SHA-256: 3d2d22bf60dc89114068cd6f94ab1cf4b609ec24ae72b1ce735d7f7e7cabc1f5
202 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 traff.ru. Additionally, it exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, but one of which is the malicious redirector. The document body, though partially corrupted, contains text related to 'how to convert online ebook into pdf' and mentions 'invoice', suggesting a lure to disguise the malicious redirection. The presence of a malicious redirector link indicates an attempt to lead the user to a compromised or malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/pify?keyword=how+to+convert+online+ebook+into+pdf In PDF document text
    • http://files.talgolani.com/uploads/1/3/0/7/130739022/lipenovizilosuzufazo.pdfIn PDF document text
    • http://files.custom-mfg-eng.com/uploads/1/3/0/9/130969896/viderugobubenu.pdfIn PDF document text
    • http://lanimaxu.allstarentertainmentky.com/uploads/1/3/1/6/131606289/jonipuzul-gemozi.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/1/0434/7500/9686/files/25402844151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/54106498654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3590/2631/files/71943483103.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4097/1674/files/80942582577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2169/6149/files/developmental_biology_gilbert_9th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/30993478259.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/49976318926.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/jetevikugil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0426/3580/files/supofifagepobuwadirav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3755/6899/files/vonelexadegidazopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7854/8630/files/company_of_heroes_2_guide.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_off000067ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67EE 5080 bytes
SHA-256: 3c145547fea7b5feaac70fd5a3d8f6baf8381ba8f36d8101b993ebd821cf7e34
font_01_sfnt_off0000794f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x794F 10376 bytes
SHA-256: 8957e68c3d7979fcd76a903845a52cda3f3756f24f837dbb9c462f28d82c3eb0

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