Malicious PDF — malware analysis report

Static analysis result for SHA-256 489f56daddad4efd…

MALICIOUS

PDF

48.6 KB Created: 2020-08-01 10:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5df8e844770bc6ad2381e8138939e4ad SHA-1: f9334d2c729bca348ee8391e0266c370f799ca45 SHA-256: 489f56daddad4efd441764f0c643adc5fc6beb2737e8796493f76766bc930d01
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=permission+denied+dir_s_mkdir, which is likely used to obscure the ultimate destination of the attack. The document body itself is largely unreadable binary data, but the presence of the redirector and link farm strongly suggests a phishing or malicious redirection attempt.

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=permission+denied+dir_s_mkdir In PDF document text
    • http://files.texasdas.org/uploads/1/3/2/7/132711954/fc8ff.pdfIn PDF document text
    • http://files.uccoh.org/uploads/1/3/1/1/131163684/kosebileseni_lewowuwedag.pdfIn PDF document text
    • http://files.thepaintedpalm.com/uploads/1/3/0/7/130740432/2682707.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/1/0429/8250/6647/files/65084816541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0843/4081/files/94416405596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8103/1064/files/11840246987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/99551043368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/ximosobakovujejon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/josuzafegeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/25304971851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8500/2920/files/gunuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1787/files/87634097163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/46672217030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8108/8670/files/75894325925.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000731d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x731D 4824 bytes
SHA-256: 148177daff8f718e9e4301f504cea7090fd9da63d17bcee432301adaa3221d56
font_01_sfnt_off0000837d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x837D 15032 bytes
SHA-256: 61dfd13200c5e54f79ec3d193661002fc380294e38ff480194fbd5b20a17d1b1