Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bd990ea50db13d8…

MALICIOUS

PDF

46.2 KB Created: 2020-08-09 17:08:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa7dcc43e377426047986af893f482cb SHA-1: 48354b3a9edb2ba6bf98da1fc0af6eeab982e324 SHA-256: 2bd990ea50db13d80f75c0739f86deffc9ec260365a7828174829929cf043777
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for a 'sales manager duties pdf'. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to attract search engine traffic and distribute malicious content. The ML classifier strongly indicates malicious intent.

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=sales+manager+duties+pdf In PDF document text
    • http://pujibeje.traveling-companion.com/uploads/1/3/2/8/132814930/bb018f27.pdfIn PDF document text
    • http://files.clarkejduggan.com/uploads/1/3/0/8/130873738/sizokesudiwuno.pdfIn PDF document text
    • http://files.acgemsny.com/uploads/1/3/1/4/131483662/gevopetok.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/1/0436/9409/6539/files/intersection_of_two_lists_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/rowewulaxaragagobowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/80873436683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49090326843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4963/8295/files/31216866674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/84490913833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/64242008611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2294/files/78139534353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5562/files/66049487132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/towizawesuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2828/1506/files/8623246049.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_off00007697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7697 5464 bytes
SHA-256: b688cc8b8437dd87394b323b94420c3fe06f8917ea0a601df4da1956720e4dbe
font_01_sfnt_off0000890e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890E 10244 bytes
SHA-256: e6b5ef7732e6aadb80b0b5484e5ffcb38605f5291120b6f90dbf83523fb5b1ed

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