Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1753cf840aa7d1…

MALICIOUS

PDF

33.9 KB Created: 2020-08-09 13:00:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffed84f94e7e7c8dc5a1e37be89a5add SHA-1: 95cf159fa3bc3790e7e0ffaa485e6c85d11d360c SHA-256: 2b1753cf840aa7d16448fa3a0c84c93dfe911bee8ebe2470d0f594755f4519a0
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a link farm of 30 external PDF links, with one prominent link redirecting through 'ttraff.cc' to a lure related to 'averitt express bol pdf'. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document likely instructs the user to copy and paste content into a shell, suggesting a social engineering attack. The primary malicious URL is https://ttraff.cc/pify?keyword=averitt+express+bol+pdf, which is likely used to redirect the user to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=averitt+express+bol+pdf In PDF document text
    • http://files.goalkeepersali.co/uploads/1/3/0/7/130776542/pegiluzugafod.pdfIn PDF document text
    • http://files.uintahffa.net/uploads/1/3/1/4/131454816/mobobibupodak-wilovamulime-runizizaw-bipod.pdfIn PDF document text
    • http://files.southerncrossdrivertraining.com/uploads/1/3/1/4/131438616/9f09f0e9.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/1/0429/9961/1555/files/nibilewonogaduxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0171/5622/files/29347477313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4482/3452/files/reactions_of_carbocations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/nobikasolibikojukaxavofog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/61576206487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1130/9719/files/13649205714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96672573922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5813/4168/files/filukanefibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8330/files/95065400919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8833/7313/files/jikajelununawotasoxepoxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7766/0825/files/alfa_laval_shell_and_tube_heat_exchanger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3857/1670/files/3585682900.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_off00004724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4724 5080 bytes
SHA-256: 1e6ee584d3631a3a5437e74694a42630855b4541318511b8f8263be73b7e2885
font_01_sfnt_off0000587f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x587F 10192 bytes
SHA-256: 66c492f3a4339b799f2f44516bff74a70d785e9b97072c09395f874d911d93ae

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