Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f2e9ee8e4a0f1ea…

MALICIOUS

PDF

44.6 KB Created: 2020-08-17 15:54:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03dbc7cb4420ac404072a68e16feb8ba SHA-1: dc8c868233038f0243cb01e722d5125d7a041f89 SHA-256: 5f2e9ee8e4a0f1ea5fa9f2d11b99ef2c3ef434453be9e735e5ec55ad8602e5a8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body text, though partially corrupted, includes phrases like 'Department of education clery act reports' and the malicious URL, suggesting a phishing lure. The ML classifier strongly indicates maliciousness, and the presence of redirector links points to an attempt to lead the user to a harmful destination.

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.com/pify?keyword=department+of+education+clery+act+reports In PDF document text
    • http://files.wwhsphysics.net/uploads/1/3/2/3/132303310/limiwafufu-jigutozikavunej-vejetabakobe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/koroziredid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/buxawozox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5382/6726/files/antenatal_care_nice_guidelines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6148/4437/files/jgr_oceans_author_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3073/9106/files/joxebepipugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/ehlers_danlos_syndrome_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8394/7427/files/98377524756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4501/1112/files/sebironi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/fevegupuxotamosujuvotisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3492/6495/files/48701464471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/vukibabiladusazos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/14742061782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7836/6885/files/kunujed.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AF 5284 bytes
SHA-256: da3a99aa423f128564349608114a625c6acaa465d8b47fa978360c5a8a694d37
font_01_sfnt_off00007397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7397 10352 bytes
SHA-256: 92215f3340d256b8d434e60e16914b20b206226a5f04fbee8bc66e2d2575a8fc
font_02_sfnt_off00009709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9709 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176