Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0111dc6f2497af…

MALICIOUS

PDF

48.4 KB Created: 2020-07-31 13:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0eb5df1af94ab8c36ee5ee09747efdba SHA-1: e3629d746d25150fa18fe9f79c691c87cc84515c SHA-256: dc0111dc6f2497af96e0f4693c562efa7885c2faa5556a103af3f7b9249d8a5a
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this, indicating the document's primary purpose is to redirect users to harmful sites. The 'PDF_SEO_LINK_FARM' heuristic further suggests a tactic of overwhelming search engines with links to potentially malicious or low-quality content, disguised as delivery menus. The ML classifier strongly supports the malicious nature of this PDF.

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.ru/pify?keyword=amber+delivery+menu+pdf In PDF document text
    • http://files.lilacvillagebb.com/uploads/1/3/1/4/131437531/gamirifusow.pdfIn PDF document text
    • http://files.theprideofsouthside.com/uploads/1/3/0/7/130739393/90c92.pdfIn PDF document text
    • http://files.eyeandpen.com/uploads/1/3/1/4/131453610/gigakosomaro.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/1/0438/1235/6253/files/98202588794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/70929098373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/24047387249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8759/2608/files/fepebaxusunitifozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/kamogabudiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/vizebovosufawelubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4638/5317/files/fiduseguziju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuxopikuxoxixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6963/5734/files/55303807740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1262/0447/files/51625543469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/josanifiwinizivufas.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006abe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABE 4784 bytes
SHA-256: ead694aed3cea9b8ec58c9e7224a398f991df26a44c2b282a99c7d276bc92d7b
font_01_sfnt_off00007ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD1 1800 bytes
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620
font_02_sfnt_off0000835e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x835E 15112 bytes
SHA-256: 1caa6a33e4d6621d3bf47ba8c52fdc2e4e0c822a2d274ce8483b482f75feb26d

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