Malicious PDF — malware analysis report

Static analysis result for SHA-256 981da315941374ed…

MALICIOUS

PDF

42.9 KB Created: 2020-08-22 06:00:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12e71e03841b5118ab45feacaefa8009 SHA-1: d3eb5f92c0da88eef8ca135e144ac82bc50817a9 SHA-256: 981da315941374ed131b0e34145b09b2a3b3db97bdd36f8df37e2b6e9949b085
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=aarti+mata+ji+ki+pdf, which is flagged as malicious. This suggests the document's primary purpose is to trick users into visiting a malicious site via a seemingly benign link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=aarti+mata+ji+ki+pdf In PDF document text
    • http://files.shascotland.org/uploads/1/3/2/7/132740836/ribidixafe_busuligamonixe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0050/4217/files/balul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/xajowisofizizidewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/axial_flow_compressor_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7224/0293/files/80231133912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3703/8491/files/read_giovanni_s_room_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/functions_of_essential_fatty_acids.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9397/3405/files/79832424127.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51FD 5108 bytes
SHA-256: 4dfb76a715fcf5a747b3c199af06573478a80e7405287c345aa589b4ce141d78
font_01_sfnt_off0000634d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634D 3740 bytes
SHA-256: eb903a4bcabb0673128613fc2c6a3b3be6b6be0204d11159aa2f590e1d82ee93
font_02_sfnt_off00006ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EC5 9516 bytes
SHA-256: cb8f6484475630af05fa4d17836b75b5d5dd90fad939cdb31fac7724d44628ca
font_03_sfnt_off00008f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F98 4080 bytes
SHA-256: 37ca86841b82fd3fa66dcfae972f7a6a703ddb9e6e0dae95fda390ba0daaa2e3

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