Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b1196554c538784…

MALICIOUS

PDF

182.6 KB Created: 2020-08-03 08:56:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c4a94654a71b8dc31e0c7832657b8d3 SHA-1: 9108f893af19a29902a32054bdfd69e6e1b1ffa6 SHA-256: 4b1196554c538784c69ba1507e1c7832371b73c3abca220b3a4b4d0b45225271
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document's primary purpose is to lure users to a potentially malicious site. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine further actions. The presence of the malicious URL is the most significant indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • 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.
  • 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.com/pify?keyword=_%2528+%25E3%2583%2584%2529+_%252F%25C2%25AF In PDF document text
    • http://files.internationalpsychologyandhealing.com/uploads/1/3/0/9/130969811/716190.pdfIn PDF document text
    • http://files.balticsportsciencesociety.com/uploads/1/3/1/1/131164442/7559044.pdfIn PDF document text
    • http://files.goldlawcolorado.com/uploads/1/3/1/3/131383982/zenafemi.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/1/0433/8191/5798/files/pudujetipozaxularaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/papadixotawotenora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/puviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9472/7074/files/futoduzemopel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0485/2386/files/my_chemical_romance_sing_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/fesudoxukupamen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2885/6487/files/92611516091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0623/8613/files/15093860823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6447/5299/files/nuvugotex.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00008c18.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x8C18 157852 bytes
SHA-256: 3a49b2d6f637a25567705194d22c04a5265d255fa11f14a04b0fdb21e97c02eb
stream_006_off0002714e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2714E 1540 bytes
SHA-256: 737fdb128980c29202f199d669df1c2b9bc8674595f8343a561c7e0c0acd5c0c
font_01_sfnt_off000257a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x257A3 3048 bytes
SHA-256: d0f323bc3ef08f10b6c97744d4c8d27a5caaee0184c284dbfc639d16f25ba9fb
font_02_sfnt_off00026261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26261 4324 bytes
SHA-256: 940c337334f5fedc2b71aa6dc8abfbdf60933a023ce837b7595973d9449fc002
font_04_sfnt_off0002798d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2798D 1772 bytes
SHA-256: 1dee64feb338e2cc595d88a35b766ea8b8b199e124349708576bb4cf11bee47e
font_05_sfnt_off00028240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28240 12712 bytes
SHA-256: 9991d2db6b5c36f6351e4abe45bd26866d866bb74f3c970d3d590e6fec3e9aae
font_06_sfnt_off0002ada3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADA3 17812 bytes
SHA-256: 31fa92d257eb6c570745d05f57fafca321066faa8eb9d95a5c528efb15d15cd7

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