Malicious PDF — malware analysis report

Static analysis result for SHA-256 98bc1bd314d15185…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 05:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dda605238b9d7fbfdfb74194d3441db1 SHA-1: e206628832012b1ed5cffed4fc13999397779da6 SHA-256: 98bc1bd314d15185c24dc266dcfd7c2cc5046d452bf890c186eb49abb7b0f842
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, appears to be a lure related to 'Bohemian rhapsody sheet music pdf scribd'. The presence of a mass external PDF link farm and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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=bohemian+rhapsody+sheet+music+pdf+scribd In PDF document text
    • http://files.bittersweetbombshells.com/uploads/1/3/1/8/131871817/bamofufamunet.pdfIn PDF document text
    • http://figekil.mills-appeals.com/uploads/1/3/1/6/131637136/94c0db80b8.pdfIn PDF document text
    • http://files.roberthinds.net/uploads/1/3/1/4/131483138/jidufus.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/1/0433/3692/5342/files/rudikajegup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8735/9141/files/fijofogoxosokupevunugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/56221821793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4633/8709/files/overcoming_anorexia_nervosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/mosegarepudexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/rilavibaxirazaxek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/13010800479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2140/9184/files/videfijewufirutotarubav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8628/9832/files/cdisc_controlled_terminology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9426/files/bonabujezoremoledufuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3903/files/14263089691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/55813760764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/67207498035.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 3

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_off00006acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ACC 5652 bytes
SHA-256: 5aef52aeb595c4c15a185148edf223c74f7ee6084189697d69448ec8f1f2a5b0
font_01_sfnt_off00007ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDB 10324 bytes
SHA-256: 0b42224da1627f3217d1423b7707ad90594dc63ca584d7d1b5dc73157906212c

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