Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdb87fdb0b714934…

MALICIOUS

PDF

57.9 KB Created: 2020-08-02 08:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7dfd7eaab99aab3dea94d4c0b6294f32 SHA-1: 8e681a8ba3e68f6755fa679de1198b18791c109f SHA-256: bdb87fdb0b714934519e169cbf3d53e1fffcb3154bdaf804c38b481fe9423e0d
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a redirector URL that is known to host malicious content. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to trick the user into clicking the malicious link, likely leading to further compromise.

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=pony+creator+minecraft In PDF document text
    • http://files.glendalequiltguild.org/uploads/1/3/2/7/132740498/131877.pdfIn PDF document text
    • http://files.sassychicmidland.com/uploads/1/3/1/0/131070561/talilamu_fenowevi_topebasirin_gikapi.pdfIn PDF document text
    • http://files.atomicnature.org/uploads/1/3/2/6/132682778/5c163b.pdfIn PDF document text
    • http://files.mssallyschultz.com/uploads/1/3/1/4/131453917/ritesiz.pdfIn PDF document text
    • http://files.monstermaniagame.com/uploads/1/3/0/7/130775098/4167422.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/1/0434/9935/6324/files/73342883053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/vojuzosiwolukubolize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/jigedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/milegibaludifojivezibap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7456/8860/files/baxufaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/50129116072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/91961024967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/maplestory_forest_of_the_priest.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7793/5005/files/bafewilon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1625/6677/files/88349145297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6134/4406/files/sofamivupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3452/6375/files/rogozetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4197/9553/files/kifuzomagakivadu.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_off0000a5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B3 4920 bytes
SHA-256: 8386c300e4206fb793b16bd96873d10884fa8dc8429ddd6938eeaab3af5db196
font_01_sfnt_off0000b669.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB669 10632 bytes
SHA-256: 294df15128112d010b196576dd657477a91a80b0a3795bead5c87c9b189b6c03