Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fbb6b80d00785b8…

MALICIOUS

PDF

47.3 KB Created: 2020-08-27 15:37:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48372a3c3da993826c0bdb14f7c902d1 SHA-1: e7927b212c2267dc3ed0c8834555d6087e784d4c SHA-256: 8fbb6b80d00785b8ebdfa6970fe7a15ee2ef1eba38976d2a3c1d10cb4c6e2ca4
202 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as an MP3 download. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the link leads to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many of which are hosted on Shopify, suggesting a link farm designed to lure victims. The document body contains the lure text 'Aparichitudu mp3 songs download' and the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aparichitudu+mp3+songs+download In PDF document text
    • http://purijo.data-in-harmony.com/uploads/1/3/0/7/130775506/6365995.pdfIn PDF document text
    • http://files.counseling4thesoul.com/uploads/1/3/1/6/131636728/1701479.pdfIn PDF document text
    • http://rutovori.zikhafrimainecoon.com/uploads/1/3/2/6/132682883/547854.pdfIn PDF document text
    • http://files.tlghk.org/uploads/1/3/1/6/131637679/xiwomojuxokiwurute.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/1/0433/3164/9689/files/microplasticos_secundarios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9999/4789/files/xewadirazalonoraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1047/3633/files/limagezigoxafip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6806/3643/files/pero_volvio_de_nuevo_y_nacio_el_amor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6365/6099/files/69157304475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/93070142740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/dagakobosogozavenedivetir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/67484181753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/noun_verb_adjective_adverb_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9740/7126/files/pdf_to_word_free_download_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3663/8369/files/cgegis_table_october_2020.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 5

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_off00007157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7157 5732 bytes
SHA-256: ac081c4ee5a5d2f25dc1f1bbf6876be28dc304c7c2a900df2242701ee5b88301
font_01_sfnt_off000084bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 13968 bytes
SHA-256: c9fb73bc722e3a264bfb708a77ec5fc58cb34b043fb65d4bca9d8ddb1e5754c6

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