Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a333f7ea45af1b9…

MALICIOUS

PDF

44.2 KB Created: 2020-08-24 21:23:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b794552c4e7da9d194e8998940f41cb1 SHA-1: 249b88d170419c5c6dc000c2ad881bae4076dcaf SHA-256: 2a333f7ea45af1b9f3e8ce9e2959036057b267ee9cfc54e4ad447a45dcce35b2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=succession+planning+questionnaire+pdf'. This indicates a phishing or social engineering attempt to trick the user into visiting a malicious site under the guise of a succession planning questionnaire. The ML classifier strongly supports the malicious nature of this PDF.

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=succession+planning+questionnaire+pdf In PDF document text
    • http://files.twoxtw.com/uploads/1/3/2/8/132814241/25711.pdfIn PDF document text
    • http://sulal.recraftindy.com/uploads/1/3/1/6/131637136/defudomoterini.pdfIn PDF document text
    • http://files.childcaredevgroup.ca/uploads/1/3/1/8/131871984/8842145.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/1/0432/4392/9757/files/vixalomakigalofuzurovuduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/danoresevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/excel_spreadsheet_for_splitting_expenses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61411835552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1283/1907/files/puwebobukaverimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/xeloganezisijizabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/gijiramojufivadizifobuwaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/24183366497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/high_school_musical_jr_script.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3584/3994/files/vufujexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/xuxebajamaxojaduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1019/4582/files/cisco_vpn_free.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
🗂 Part of campaign: childcaredevgroup.ca 3 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C1 5432 bytes
SHA-256: f5400a147c57b4eef8b8eaaa2d55a83f066b4dff53aab44d4708da642f56c596
font_01_sfnt_off0000732a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732A 10160 bytes
SHA-256: 5c234df1fd2f7411da70c1bfdf5aac49e82099bf74986105dbed400e0cdf9779
font_02_sfnt_off000095fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95FB 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2