Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac43038778e8b30…

MALICIOUS

PDF

66.5 KB Created: 2020-09-02 22:17:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d8ebf16e1aa5e4f4c9bb66be7bb9e34 SHA-1: 6484ad399d22a8bfd49ff644170577570a1126cd SHA-256: 4ac43038778e8b3025562b84b887747ec4dc763716c9b655b54932fde499cd34
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=participants+in+the+business+buying+process+pdf'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious content. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious link. No scripts were extracted from this sample.

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/wix?keyword=participants+in+the+business+buying+process+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65587220918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3166/4552/files/agricultural_marketing_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/funeral_order_of_service_template_microsoft_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/new_vegas_unofficial_patch_plus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1244/7652/files/1912564825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/wolurajugudoxug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/acute_limb_ischemia_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/karinowafinituriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/kogo_joseki_dictionary_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/vepowuzelafenulidazuluna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/39194218477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5147/5351/files/zofetujozetisikowut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7641/9744/files/22073255829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/oxford_phonics_world_2.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a7e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7E0 5512 bytes
SHA-256: dea6603899c63edf256c40f988e51067ef6d2abf44c73087894cad6f757c0ee8
font_01_sfnt_off0000ba83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA83 6092 bytes
SHA-256: a210e223e7f068feff11e66141f49b252083a27d1ca58a88dcdfcc99b07b1f2d
font_02_sfnt_off0000ca55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA55 10840 bytes
SHA-256: 7df65b04cef29d7213c256099c5cd095588e73f4fb57213e3f86f4fcc39c17b3
font_03_sfnt_off0000ee29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE29 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333