Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa3192e5a255ec7…

MALICIOUS

PDF

77.8 KB Created: 2020-08-12 10:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ef4a60ec6733554502717425082f26a SHA-1: 683ceebaf11371520ea4acc0bb5e262b15d2c6bc SHA-256: 2fa3192e5a255ec70b692a47bea5cca7fc5528fa06eec6323953e29450133360
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 pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a pharmaceutical information PDF. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL is 'https://ttraff.com/pify?keyword=azitromicina+bula+pdf+prati'.

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.com/pify?keyword=azitromicina+bula+pdf+prati In PDF document text
    • http://files.danceology.ca/uploads/1/3/1/3/131380467/lofot.pdfIn PDF document text
    • http://files.eatclaylove.com/uploads/1/3/0/9/130969825/fogatusolipex-xuzorepafovoni-rupizolik.pdfIn PDF document text
    • http://files.muirlawoffice.com/uploads/1/3/2/3/132303248/4874664.pdfIn PDF document text
    • http://gakifa.spotlessga.com/uploads/1/3/0/7/130739592/fdfea8da81576.pdfIn PDF document text
    • http://files.cvilleclergycollective.org/uploads/1/3/2/6/132681824/gepabano_kuvesik_jedunikisutil.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/1/0440/7512/2840/files/14413088365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/52180695239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/century_powermate_70_welder_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/jobejugogubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6638/2746/files/famuzaxukutiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3777/4239/files/levumiribofamosavesoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/tinixugoxorut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/86641162255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0246/1351/files/i_am_chemistry_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6067/2165/files/unholy_dk_rotation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/51293428069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voxetevew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/77535806741.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00010def.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10DEF 18048 bytes
SHA-256: aec787aeb10a7b37643161bcd690db6fca3a91f647592ba97bbb95d7396e003d
font_00_sfnt_off0000ceed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEED 5304 bytes
SHA-256: 6aadfe61bc3bbf0316d2b681bb39c2d4a43a1bcc7535bd4619373e70c635ff65
font_01_sfnt_off0000e0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D7 14572 bytes
SHA-256: 5ca731d984c40ec51a305337889b29477bf068011c1adb6476f6fecc39642f9a