Malicious PDF — malware analysis report

Static analysis result for SHA-256 b037337289fb1052…

MALICIOUS

PDF

42.6 KB Created: 2020-08-10 06:52:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf78dfddaa32751cc20ea357925c712b SHA-1: ae29735e0007c14637f77f85a0d8c1842a2d254b SHA-256: b037337289fb1052ff00d189b54ab8f56c4bcc6a8de72cb40107c1d38032316c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector (ttraff.com), which is indicative of a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the primary goal is to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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=buku+paket+agama+islam+kelas+11+kurikulum+2020+pdf In PDF document text
    • http://files.jasmineleflore.com/uploads/1/3/1/3/131380308/pibos.pdfIn PDF document text
    • http://files.georgiarowswell.com/uploads/1/3/1/1/131164052/1f818e.pdfIn PDF document text
    • http://muladid.heriotwattcu.com/uploads/1/3/2/8/132814930/7e426ee.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/1/0435/1485/5583/files/periodic_table_with_charges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6203/files/forenuwumuduwise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/70733681799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8913/files/wow_classic_star_ruby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9197/4557/files/16700501076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4104/4118/files/wixejivijobujelimonudimaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/gulapidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/64573469577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3934/2247/files/58943020962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5942/1092/files/mufuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32686583269.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 2

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_off00005a1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1E 5468 bytes
SHA-256: 8755199cd1722836e4cf162afcf9b2cf1dc8572d36ef2c393f58fbc3f8172d76
font_01_sfnt_off00006ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCC 10188 bytes
SHA-256: 93e37ce6a52ec29efaf0c97af66675aeaa2bb9e9109e4ac234a18b7930c6ead4
font_02_sfnt_off00008f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F78 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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