Malicious PDF — malware analysis report

Static analysis result for SHA-256 da29bdf0167ed199…

MALICIOUS

PDF

39.3 KB Created: 2020-08-13 21:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a55082ef64f904a85f7ed521ea96d1 SHA-1: 73e5a2be12bced574af0307a005a060195f9d08b SHA-256: da29bdf0167ed199599e1f7a76c02216f347788df3fbbc52f5ea370d7df4766b
194 Risk Score

Malware Insights

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

The PDF file contains a link farm and a redirector link pointing to a malicious domain. The document body, though heavily obfuscated, contains text related to 'Ashrae psychrometric chart pdf english units' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external links, many hosted on Shopify, indicates a link farm designed to obscure the final destination.

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=ashrae+psychrometric+chart+pdf+english+units In PDF document text
    • http://files.evodiacreative.com/uploads/1/3/0/8/130815009/fuxugafok.pdfIn PDF document text
    • http://files.jrobsessions.com/uploads/1/3/1/0/131070325/xarikojiz.pdfIn PDF document text
    • http://files.lawrencequill.com/uploads/1/3/0/7/130740538/rizenaxi_fisafotejoma_wivob_jifokuxenak.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/1/0431/4896/8100/files/anaconda_python_3_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2611/2927/files/alter_ego_plus_3_guide_pedagogique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0525/5577/files/22672089470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/accurate_english_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/94739955091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/kumirawavuwigaferuxug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4386/3198/files/cummins_diesel_engine_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/domamusuvusuzexi.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 1

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_off0000573d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573D 5660 bytes
SHA-256: b2af0cc7af2184a8e001a1544716494e6a55419e5ac5b545a370b18c3ddf3cd1
font_01_sfnt_off00006a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A5A 11164 bytes
SHA-256: e528feac504c2d1cc261b5f5a42ef4b9cc25ffbfb91a3cc59c38595653a91560

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