Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4dc4a84ca52db22…

MALICIOUS

PDF

44.3 KB Created: 2020-08-01 22:21:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96ff23c34d35972b03af388d0243ed3c SHA-1: 6f22010145239a4a92d504a79f194ef541af4465 SHA-256: b4dc4a84ca52db223c71d1c19542cadfd8c3e6e9975caa839973b5079f39d6a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the string "Cities in pakistan" and a URL that appears to be part of a link farm designed for SEO manipulation. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cities+in+pakistan, which is likely used to redirect users to further malicious content. The ML classifier also strongly indicated maliciousness.

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=cities+in+pakistan In PDF document text
    • http://files.abroaddownunder.com/uploads/1/3/1/4/131406211/xeded.pdfIn PDF document text
    • http://files.annonautosalesllc.com/uploads/1/3/0/7/130776120/semifinafameguvanu.pdfIn PDF document text
    • http://files.gobeyondracing.store/uploads/1/3/1/4/131407796/lozuwineketeb.pdfIn PDF document text
    • http://files.gemalchemist.com/uploads/1/3/1/3/131379803/luvarutosuduvusud.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/1/0429/6556/5589/files/vokep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/resebuzudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7853/3788/files/votusonojuzosubuveganes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xatet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/zabataj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8552/1311/files/kemes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/knight_in_rusty_armor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/kesidipafemizafozom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/wiravikunufudusop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/gorewojol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7235/4459/files/36527414183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/ganax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/50222697465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7905/7056/files/12836628008.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 8

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_off00007014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7014 4652 bytes
SHA-256: 80a7b38f204c932d05fb0e3096f9f23caaebc7130c29d8f140147c2e3b5fe1eb
font_01_sfnt_off00007ffe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFE 10840 bytes
SHA-256: 91ff5573beb393b8e3df6aa606006d5967cf052fef8746ed2b1ec130c7cb4360

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