Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb3038158ce0ef5…

MALICIOUS

PDF

32.1 KB Created: 2020-08-13 10:51:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7acb8857e01ceed83ef4ed7b4103b034 SHA-1: 26f9d5b539dce08bc8c81d434b3f9e90b360e7f2 SHA-256: 6cb3038158ce0ef5956db5d55d486c38fe868bedaf49758f3b247ca372f55ce1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector infrastructure known for hosting malicious content. The primary lure appears to be a fake manual for an HP printer, directing users to 'https://ttraff.cc/wb?keyword=hp%20laserjet%20mfp%20m130fw%20manual'. This redirector likely leads to a phishing page or malware download. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent.

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.cc/wb?keyword=hp%20laserjet%20mfp%20m130fw%20manual In PDF document text
    • http://files.alexandrakcooper.com/uploads/1/3/1/6/131607029/cc4181a2.pdfIn PDF document text
    • http://files.loudounlyricopera.com/uploads/1/3/2/6/132695472/91844e.pdfIn PDF document text
    • http://files.cbd-uk.shop/uploads/1/3/1/3/131379510/d566428890649.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/1/0431/6548/3168/files/dibibebudizulerunaneka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6549/files/luzojobufujakiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0103/files/sufufixizakatogazikuwiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/bowekikifogexunifen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8379/1517/files/34451369283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8148/1884/files/zifejovibitasatogifoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4803/3689/files/6438860929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/runerawalekikotusade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/94081681542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sekokejeninidifowabofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1938/6526/files/possessive_nouns_worksheets_for_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2485/files/ceroplastes_floridensis.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004215.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4215 5536 bytes
SHA-256: f5b7d2bee5f38f49b4eb91ef4100bb4b9549c7679cdbff4378372829d27a0edf
font_01_sfnt_off000054e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54E1 9004 bytes
SHA-256: 92ec59c7d1acb1e915c843f901ef7680cbf52b7909f25dc7df6da096d75f36fa

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