Malicious PDF — malware analysis report

Static analysis result for SHA-256 624f167be97ab554…

MALICIOUS

PDF

150.7 KB Created: 2020-08-02 14:53:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 817f181b5757c9e1ea66c92251eaa0c8 SHA-1: 92404626ab007d759374e5d2fd4e0641d0ab56ea SHA-256: 624f167be97ab55425fd554a0b5271933ca51c921f497767240d1247f80f6fd2
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to a known malicious redirector, ttraff.com. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload or phish for credentials. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=rifts+mercenaries+pdf In PDF document text
    • http://files.stevenleeweintraub.com/uploads/1/3/2/6/132681985/3620390.pdfIn PDF document text
    • http://files.eceti.org/uploads/1/3/1/8/131856353/lisomag.pdfIn PDF document text
    • http://files.honoraryislander.com/uploads/1/3/1/6/131606730/485963cb532edd.pdfIn PDF document text
    • http://files.tedxkitchenered.com/uploads/1/3/0/9/130969960/1463610.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/1/0441/1303/5416/files/3828228962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3947/3314/files/18320533087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/vamenaximuwoxowotubapev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9157/files/fujoduvakigavitazudofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/51592727472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8850/1143/files/talojoletapukojoboxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7462/4419/files/sort_a_string.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/mysql_truncate_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2234/3577/files/93082430720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3363/2678/files/11926198338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/78343533582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6991/4790/files/gevila.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 8

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_off00021625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21625 5276 bytes
SHA-256: 499a592ac9685f6dd0ee16e46dfde9dbc6d1155d1a236389b690e8e44e915bd1
font_01_sfnt_off00022807.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22807 11064 bytes
SHA-256: c7c64f3b16057e65b970c99279a5d852ac5e51ed0fb3c007e8d862375ad2276e

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