Malicious PDF — malware analysis report

Static analysis result for SHA-256 838b1407fcf66711…

MALICIOUS

PDF

36.9 KB Created: 2020-08-23 22:06:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9380e1fab281e19cca3b4e9b44c01a85 SHA-1: aa4f1341ce7a38d0686e247e0bd45115a8143d67 SHA-256: 838b1407fcf667116ddbd3ffc89c3d6df53809378fab131861fa4a883f05db4d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links, including one pointing to known malicious redirector infrastructure at `https://ttraff.cc/pify?keyword=aashiqui+2+song+lyrics`. This suggests a phishing or scam attempt, likely using the 'song lyrics' lure to entice clicks. The presence of numerous other PDF links indicates a link farm strategy, potentially for SEO manipulation or distributing further malicious 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.cc/pify?keyword=aashiqui+2+song+lyrics In PDF document text
    • http://files.martindewittfinearts.com/uploads/1/3/1/8/131856158/kememadosozimod-pisofotizu-mezedefob-defepiliso.pdfIn PDF document text
    • http://files.biodanzausa.com/uploads/1/3/1/1/131164295/b23902bd5dbdb2.pdfIn PDF document text
    • http://files.kenyawebnews.co.uk/uploads/1/3/1/4/131406840/b0111a4b3e8.pdfIn PDF document text
    • http://sepetepi.balcotthighvintage.com/uploads/1/3/0/9/130969536/4321844.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/1/0438/2926/4546/files/apa_citation_format_example_in_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3735/0305/files/kesajawojoxezi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9122/0887/files/18081095203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/2875249738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4481/4500/files/paninoxufuwupopunan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/how_to_see_archived_messages_on_messenger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0760/5910/files/blessings_laura_story_piano.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_off000052e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52E5 5412 bytes
SHA-256: 91bcb66868f5cf84711a9604797b8427a1bae1472f5479717b8b04ab79a84acd
font_01_sfnt_off00006544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6544 9980 bytes
SHA-256: e95c01a0abbb6863116ef9509cc930fa4fb2e25ab1ac33af1c632b32daf56393

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