Malicious PDF — malware analysis report

Static analysis result for SHA-256 4672305f0cb89f1b…

MALICIOUS

PDF

166.5 KB Created: 2020-08-11 02:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9cf6866e81116faeb8d28449d0e9eeed SHA-1: 3f3d96c32faad28cd92d80dd7e9d561f07502ecc SHA-256: 4672305f0cb89f1b6175a711c62d969099a345104e236a139d92c59f8e4cd918
174 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to ttraff.com. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to lure the user to this malicious site. The ML classifier strongly supports the malicious nature of this PDF.

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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.com/pify?keyword=bacaan+sholawat+burdah+lengkap+pdf In PDF document text
    • http://files.jadeyoga4health.com/uploads/1/3/0/7/130776296/texojawuv.pdfIn PDF document text
    • http://files.celebratedancepro.com/uploads/1/3/1/6/131637147/24748.pdfIn PDF document text
    • http://bubeb.jambo59.com/uploads/1/3/1/0/131070722/c05da76ec44d2c1.pdfIn PDF document text
    • http://lavasofab.ultrafitpersonaltrainingstudio.com/uploads/1/3/1/4/131407089/7700194.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/1/0435/5178/5109/files/64934313914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8039/8486/files/71308567171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6284/4837/files/81428945196.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5769/2320/files/madevidobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2888/1318/files/xotez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/where_to_mail_form_940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77084518355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8020/3944/files/burnout_3_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/savobufowezegirub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7377/7319/files/lean_canvas_modelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6189/3534/files/amenemope_proverbs.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_off00024fac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x24FAC 35728 bytes
SHA-256: ca75610500c72c5410da9d561ee999571e1289a7b73d6de29d9de4ba67ded00e
font_00_sfnt_off0002163c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2163C 5760 bytes
SHA-256: 2ad14db7c6555c88ae4b8724a09e7427d156f94db2f5a4a586c5cbc9fd35939f
font_01_sfnt_off000229d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x229D4 12204 bytes
SHA-256: 8af2c7b40c7656f0aa46de8325181cbd5019cee1e087c9c0491163d611c75380