Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d00309bf560e561…

MALICIOUS

PDF

99.7 KB Created: 2020-08-10 03:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc716a06e5598bc3fd2ae9a01fe7fc45 SHA-1: 3a45a1aa2d10bc7d18f977c32b36ca63f6e7202e SHA-256: 9d00309bf560e5617970c6649ad03149c81e6710930ae09960a187a3b8dbf875
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=birds+name+in+english+pdf'. This indicates the document's primary purpose is to redirect users to malicious sites. The presence of a large number of external PDF links, many pointing to potentially untrusted domains, further supports a malicious intent, likely for SEO poisoning or traffic generation to malicious infrastructure.

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=birds+name+in+english+pdf In PDF document text
    • http://files.nejnamc.org/uploads/1/3/1/6/131607346/bujowadatasivo.pdfIn PDF document text
    • http://fapetof.laboroflovesingapore.com/uploads/1/3/2/8/132814930/016e6acd4159.pdfIn PDF document text
    • http://files.giveinfulltoday.org/uploads/1/3/2/7/132740502/8584472.pdfIn PDF document text
    • http://files.ocscc953.ca/uploads/1/3/1/6/131607310/rededoxukupipudowek.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/1/0431/3550/0439/files/rei_s_minimap_1._6._4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/lodabewomuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/2002_pontiac_grand_am_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/fufuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7952/4759/files/how_to_play_multiplayer_on_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/windows_8._1_pro_x64_activated.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/wexorizupexajagujori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/52727565939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/laramifijusubid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/kibirudoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9717/7768/files/7937672917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/5768127571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/5501/6088/files/weissbluth_atoms_and_molecules.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000ce34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xCE34 12860 bytes
SHA-256: c06deccba8dcb6064e64e325173bd22ee7b3b452ea8fc144ce77857da3ba21f0
stream_007_off00010921.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10921 16896 bytes
SHA-256: f1f96b56b9eea9c9f1ffd55d72a0d1472b220d9082974a8a26a3f9412fa8357f
font_00_sfnt_off0000bbad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBAD 5504 bytes
SHA-256: 0f1a4d216480c566de4f6aff7bcb34d64abf9582ca34bbae220aa72f244dbb59
font_02_sfnt_off0000ed62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED62 8584 bytes
SHA-256: fe48a829025244b922409e88413eb41cfdf8b11ab898a965931981858a85bdce
font_04_sfnt_off00012eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EB4 17324 bytes
SHA-256: 191e49e2815ec8c890d3f77fbf73fb606ca171b27d7adf329c84ee93cfb614c0
font_05_sfnt_off000161b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161B0 9296 bytes
SHA-256: 9dc116b722c38d96c3b41883522b871d697dc9c5844e4a1217a53dcfc08c9fe8

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