Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c45df40579752f…

MALICIOUS

PDF

38.1 KB Created: 2020-08-23 04:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1f194bb006d31169ab244e577429b5f2 SHA-1: 0f652ef3e52c4c88a073a12a8e8fd5b7e27ae6f9 SHA-256: 25c45df40579752f0c76c63da100f123922d699f8dd0835d7e67370c82a65d14
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious URL, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Baby video songs free malayalam' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of multiple external links, likely for SEO manipulation or to host further malicious content. The ML_NYX_PDF_MALICIOUS heuristic strongly supports the malicious classification.

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=baby+video+songs+free++malayalam In PDF document text
    • http://poguv.koyltontownshipmi.org/uploads/1/3/1/8/131871674/zipitiguxez.pdfIn PDF document text
    • http://sebimokax.belleislepizza.com/uploads/1/3/1/4/131410685/guwopu_pusuvadotos_juruluveves_bosexufilumora.pdfIn PDF document text
    • http://files.ayurvedalifescience.com/uploads/1/3/0/8/130813781/11418.pdfIn PDF document text
    • http://simavi.levelnegotiations.com/uploads/1/3/0/7/130775209/lexefipezodaramezak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6910/2485/files/45596909315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nisexabidubukov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5623/3638/files/fatijoxevolirux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93016620893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/66420766028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8548/6485/files/catcalling_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9036/8929/files/gomofugunufixafil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/15645436424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/bobuf.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A66 5288 bytes
SHA-256: 9050ec917b6ef5bfe873439711daad8e32d3e2f765199499b5751004ae2d1866
font_01_sfnt_off00005c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C45 9804 bytes
SHA-256: e20efeb88bfdd2f3da88af5f5d34f22d98ec6b2a988d39a25e5ca3a0ce6c4698
font_02_sfnt_off00007dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC5 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.