Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaa167afb491878e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-22 23:59:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d3b3ea56bc43869c9d01e232128885c SHA-1: 95d7fe2393ee15b2ae24c28946f0f216686145cb SHA-256: aaa167afb491878e7ea2d566acee9799489582e5a17ac56e73a9528dd21acb0d
194 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to a link farm hosted on Shopify. One of the primary links, 'https://ttraff.cc/pify?keyword=eddy+current+brake+system+report', is identified as a malicious redirector. The document's content, including the embedded URL, suggests a social engineering attempt to direct users to potentially harmful sites.

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=eddy+current+brake+system+report In PDF document text
    • http://files.carinekeenanmft.com/uploads/1/3/1/4/131483445/sumanemax_kepawinalula_veraw.pdfIn PDF document text
    • http://sofedegub.shannondellmodelrailroad.org/uploads/1/3/1/4/131406710/8ab46dbe0f4.pdfIn PDF document text
    • http://files.alittledevotion.net/uploads/1/3/0/9/130969151/waxuwapananud_zududeja_xituzatovege.pdfIn PDF document text
    • http://nokegok.bucklesandbeads.com/uploads/1/3/0/8/130814328/5987729.pdfIn PDF document text
    • http://xijomibef.embracechangehypnosis.com/uploads/1/3/2/6/132681231/15f1c0.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/1/0439/6145/0654/files/la_flor_del_azafran_amarillo_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/converter_to_word_freeware_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8618/3576/files/10460107108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/kiwomigunowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5654/5433/files/vofeboxujanegaseforax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/55557226049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9438/3522/files/62843658817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/8783/3762/files/cambridge_igcse_computer_science_workbook_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/uidai_aadhar_download_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/ff14_pool_of_tribute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/pmbok_5th_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/39137818659.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 8

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_off00006385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6385 5452 bytes
SHA-256: a49b3dd701c556f7c72a8f6bbdb8a1f0e324dcf391ddbd22e94c57dd6ea9191d
font_01_sfnt_off000075f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F7 9832 bytes
SHA-256: 378d7c6f9339f08d083f5393d8fd9a94a464186836d719db65748dbadbd4679e

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