Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f2989895978461…

MALICIOUS

PDF

213.0 KB Created: 2020-08-26 15:25:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56aeae0ff6ace00dd9c2a2fa21b5902c SHA-1: 165ded801e3c3c55fdd8568894fe4109b47376af SHA-256: 19f298989597846136f1aeb9d29021496724482b4f6c655c59b85090a0c41e6a
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link to 'ttraff.ru'. The embedded URL in the document body also points to this suspicious domain. This suggests the document's primary purpose is to lure the user to a malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.ru/pify?keyword=cyq+requisitos+de+cualificaci%25C3%25B3n+de+l In PDF document text
    • http://files.uncconsultingclub.com/uploads/1/3/0/7/130775429/zomiraramijonijel.pdfIn PDF document text
    • http://files.spectordance.org/uploads/1/3/2/6/132695832/2117555.pdfIn PDF document text
    • http://gavekuno.allisonsanimalacademy.com/uploads/1/3/0/7/130738970/29e7c87c24ca31.pdfIn PDF document text
    • http://files.harmonyremoterepair.com/uploads/1/3/1/3/131381518/tavaberazop_jurafud.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/1/0436/3704/7449/files/zegiwurovorivisatazileba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9801/1816/files/14937409449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/34243919833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7421/5331/files/samsung_galaxy_note_10_ringtone_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/74765747800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6710/3645/files/rimotetibejefejogapimibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6454/8762/files/adding_text_to_in_preview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/zavurekefinugazopori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/dixifoxisolefejipafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8952/7714/files/autocad_2010_pc_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83260340608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0132/3420/files/78402912411.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 3

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_off00030b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B14 5284 bytes
SHA-256: 5938eeee6c2b6f468c77cacb9bae0b46c8ea49feb0bc8ff0111b1a45f656825c
font_01_sfnt_off00031ce3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CE3 12052 bytes
SHA-256: 418ef950876048f26fca2708f8a47ac01584011092941b067e7c400da4128976

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