Malicious PDF — malware analysis report

Static analysis result for SHA-256 22b5a7f65ca0eb01…

MALICIOUS

PDF

42.1 KB Created: 2020-08-15 21:59:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25aa96de4a1ba2ed130aa1536a17434a SHA-1: ebd887cf26295f130b4b63c52cdca93053920166 SHA-256: 22b5a7f65ca0eb018b089460759946f6691e031053f1a8f82c54fabac23d68b4
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to ttraff.com, which is flagged as malicious. It also functions as a link farm, with many embedded URLs pointing to Shopify, likely to improve search engine ranking for the lure. The presence of a 'download button' heuristic further supports the social engineering aspect of this attack. No scripts were extracted, but the primary attack vector is the malicious redirector.

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.com/wb?keyword=managing%20human%20resources%207th%20edition%20pdf%20free In PDF document text
    • http://files.frigatebirdfishing.com/uploads/1/3/1/3/131398428/lebikowag_pukamotedudofux.pdfIn PDF document text
    • http://files.dlake.net/uploads/1/3/1/4/131409017/5704725.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/1/0431/4251/2802/files/16559726590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/difevuzelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/38368756502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/8078202519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/niloledelotodawejubibilal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/52685219439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3829/files/25089503964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4996/files/lizenumogenapalin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/vefukulopisuwadojijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2969/1558/files/filepugozitepuzaketinaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8095/7598/files/19410411315.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 4

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_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 5620 bytes
SHA-256: 2351659fd60dbe5d24aeea6f63081c9f3cd1e453a8215bb8d0f447033d564d41
font_01_sfnt_off00007766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7766 10504 bytes
SHA-256: ba0959683966120fa5de94b8db00f270ca3625bb1336c9920a32a33a3a5b7328

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