Malicious PDF — malware analysis report

Static analysis result for SHA-256 42fe412a771de208…

MALICIOUS

PDF

38.3 KB Created: 2020-08-19 11:58:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c30a3b05f53a800c0cdc4f794f6a3f9c SHA-1: 07325cf1be64fa04baeb3ed09033d0ac03204f8a SHA-256: 42fe412a771de20891ac666405c897d8aece7b768ba7754ccb94e4c65b2f5387
202 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=online+pdf+to+excel+converter+sejda'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains references to the converter lure and the malicious redirector URL. The presence of a 'Download Now' type phrase further supports a social engineering pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=online+pdf+to+excel+converter+sejda In PDF document text
    • http://files.alicebeecherpoetry.org/uploads/1/3/0/7/130775387/lovumonebunan.pdfIn PDF document text
    • http://gikifur.dhkayaking.com/uploads/1/3/1/4/131454165/5988065.pdfIn PDF document text
    • http://kekalep.crowdedbedcreations.com/uploads/1/3/0/7/130738970/nixerox_badezolipifijij_wafiju_remofera.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/1/0435/8438/9275/files/paypal_donate_button.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1961/4882/files/nujawivufipavuxeboxikuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/26029432605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/2376/5402/files/50097152170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8701/0715/files/31964938837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/fapovalonilogabusotix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9113/2567/files/vixerodalup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8036/8796/files/xukupagoxenemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0649/2823/files/didisimofebukapemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/tobukedazawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0098/6787/files/mad_world_piano_sheet_music_beginners.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5830 5380 bytes
SHA-256: 1f5372c106f7c582562a8e6bcb5e8205fa90b0f7b37ab5a431dc8ae1d8bd596c
font_01_sfnt_off00006a95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A95 9864 bytes
SHA-256: b012694ab89710ddafddea3c2bf984025ff8a2c3bb2fbb2f6b61c2dd952181ee

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