Malicious PDF — malware analysis report

Static analysis result for SHA-256 223339c549244f0e…

MALICIOUS

PDF

59.0 KB Created: 2020-08-08 15:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b18dd3c158b2aa197d4b7ebd5c69afd SHA-1: e807c6a436cea51f6c3c0d52c422e6b8f8c3d480 SHA-256: 223339c549244f0e27648e6ff1e492a98b2001129960f002b014fff0f20e9f1d
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One critical heuristic indicates a PDF malicious redirector link to 'ttraff.cc'. The document body contains the string 'Input file accept pdf' and a URL that appears to be part of the redirector chain. This suggests the document's primary purpose is to redirect users to malicious content, likely for phishing or malware delivery.

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=input+file+accept+pdf In PDF document text
    • http://nomido.julesinyoga.com/uploads/1/3/2/6/132682883/lotexugovaporo.pdfIn PDF document text
    • http://files.cancerenergyhealing.com/uploads/1/3/0/8/130873961/xugoxed-luterapur-foxib.pdfIn PDF document text
    • http://files.joshualinkmusic.com/uploads/1/3/0/7/130738714/pezeluregunubun.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/1/0434/5331/7272/files/biochemical_test_principle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/52491481419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1925/5456/files/58458191257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2330/9727/files/tirakuduwudani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6219/0499/files/cet_exam_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4795/2292/files/suwuvosijetoxitudojegek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5774/9917/files/makalah_batuan_sedimen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92399027362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0445/files/31355713020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7905/5000/files/flower_names_and_pictures_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/nine_abdominopelvic_regions_and_organs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3884/2779/files/18096790337.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

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4D 8476 bytes
SHA-256: b652096b20e77b2aa9a978bfb0b3c5ec172d4e907cb5a62232c3b291371b19ad
font_01_sfnt_off000088ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CA 4812 bytes
SHA-256: 3aafde2d56b6780422a9f60895e4b418638f32be010cdc854eec366eab05cb82
font_02_sfnt_off00009944.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9944 14824 bytes
SHA-256: 461da4c5e88034411b7ab8342afa7d8cb1342bab5f33edb986d57b8b6b875e0f
font_03_sfnt_off0000c83e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC83E 16036 bytes
SHA-256: 354dce64f07f3d7acdf6a04edf763950ffbfec4edcbb4bfe17b65a83544077bb