Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0bad9a146c774d0…

MALICIOUS

PDF

41.9 KB Created: 2020-08-01 04:27:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d8ee17d568202e302b00d75300ea014 SHA-1: 2efd373eada712399fe242f1cb17ea41e04101bc SHA-256: a0bad9a146c774d0a2545cddc8aa0a02c350dd197b6d818fab2f5c90d680ad68
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to "Hp officejet 6700" and the malicious URL, suggesting a lure. The PDF also contains a large number of embedded links, as indicated by the PDF_SEO_LINK_FARM heuristic, which are likely part of a link farm to improve search engine ranking for malicious content.

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=hp+officejet+6700 In PDF document text
    • http://files.dnatlfood.com/uploads/1/3/1/3/131384113/walarujufovu-fikazu-wojanez-jezivakogigim.pdfIn PDF document text
    • http://files.bourkeconstructionoc.com/uploads/1/3/0/8/130874111/2245436.pdfIn PDF document text
    • http://files.hemlockedgerescue.com/uploads/1/3/2/6/132681579/5b164.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/kivelukusuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2953/6676/files/nidirejonefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/66226291714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5459/6250/files/dewisibidude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7985/files/nizumifamasopikorepakejes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7877/0078/files/198097523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/5976381548.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6577/8080/files/23539752678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8832/1438/files/lesumugis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/fukotadajukupaguwosaniwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/risegajas.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BF 4588 bytes
SHA-256: 7a7d745120c5d1880bed130176ba20f2aee4d4086338dcde2b6f38a6cd3adf63
font_01_sfnt_off00006778.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6778 11048 bytes
SHA-256: 70fc45a15c26738f43a44813efa1e70a467bf598655f7a37c71b92c1f8dce466
font_02_sfnt_off00008ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CCC 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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