Malicious PDF — malware analysis report

Static analysis result for SHA-256 45085f0b47b9715e…

MALICIOUS

PDF

56.3 KB Created: 2020-08-30 07:31:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0f68deeac093f8e53ed0f43258452a7 SHA-1: 4df068796ec66fc226a0384ce1f514ac7e2cba35 SHA-256: 45085f0b47b9715ef4bc0d862a96070406b33893d38b31d20ffd73fe8e29a075
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is presented with a deceptive keyword. The document body, though heavily obfuscated, contains the same URL and a list of other URLs hosted on cdn.shopify.com, likely intended to appear legitimate. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports a malicious intent to lure users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wix?keyword=sean+paul+amor+eterno+descargar In 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/1/0427/6636/8935/files/64968814751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7305/files/calendario_2020_gratis_da_stampare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/call_forwarding_app_for_android_phone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4801/8855/files/adiemus_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5114/5626/files/9211120853.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/31984218913.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7b45f645a8f446e1a05ee991c4a83db5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_60117dac7607460884c8cc948294237b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/97634b_2fc962908c6f43a4974fb0011c58336a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_cb8444e3457a4832bae96b7ddb14674a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4dd980_76b1b6b6c69f4067b7bd27a1f61510a4.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
    • https://www.facebook.com/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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000057af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57AF 6424 bytes
SHA-256: 120dfd7c7977cfb9a90e0c19aa24ce80f3ad63f69756627d616fe21accc03e95
font_01_sfnt_off00006791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6791 5496 bytes
SHA-256: 4df751e5e28733a805410ddf5d5f41e331bf5c55d756d23ddbead3b845da0de4
font_02_sfnt_off00007a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A19 5276 bytes
SHA-256: 372ff3f3759db8e605627a3e3c827d07deab61ce5c1797e9894f2292549d54bb
font_03_sfnt_off00008d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D57 11600 bytes
SHA-256: b998a3f3b9b7620b7d0409d5979ba47faaceae02b7acdae3621b0c4726154524
font_04_sfnt_off0000b372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB372 16620 bytes
SHA-256: e4a5a6a61265cbe6c0932089059cb53da9df7dc8caedaa4edebc398464311152
font_05_sfnt_off0000ca44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA44 1736 bytes
SHA-256: 0d9b6ab0354368cdfa5a4e52e4dfb250ede80cec4283e48fafec0a3c1c1d30df