Malicious PDF — malware analysis report

Static analysis result for SHA-256 b601e95c407410df…

MALICIOUS

PDF

46.0 KB Created: 2020-08-04 06:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc984abbfc61a22fba1b5979c099c41a SHA-1: 1196ed87b8ffb69e5333180e641e95464fb92fdd SHA-256: b601e95c407410df3921f82b7251ae2985c6ecc4ce69afe313b1cf8f2dd928c6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=abbreviation+dictionary+pdf', which is also listed as a malicious redirector. The ML classifier strongly supports the malicious verdict. No scripts were extracted from this sample.

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/pify?keyword=abbreviation+dictionary+pdf In PDF document text
    • http://files.thegrovecg.com/uploads/1/3/0/7/130739043/xeloweg_kisofixadef_nudalewub.pdfIn PDF document text
    • http://files.hbnaz.org/uploads/1/3/1/4/131407152/5411203.pdfIn PDF document text
    • http://files.rinfang.com/uploads/1/3/1/3/131384249/wutik.pdfIn PDF document text
    • http://files.meandmyfriendspreschool.com/uploads/1/3/2/6/132681851/jamewewutudufapip.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/1/0430/8015/5289/files/17851216771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0499/1400/files/mass_media_as_agent_of_socialization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3748/1365/files/71491749864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8797/8913/files/muwurojij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3031/4151/files/jimolak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7170/8065/files/2156832021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0944/files/gevonisabavizemugopadizod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/94396941802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/96362443540.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 7

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_off000069b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69B1 5016 bytes
SHA-256: d19e857fa376ce0d37bd4d475c3170edc94c7db0dc13406730dd33524855cb45
font_01_sfnt_off00007acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACF 10000 bytes
SHA-256: b49ab33ddbf6050bc378ec2808c15d52480cf430c320f95bad591c02dddfa18d
font_02_sfnt_off00009d05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D05 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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