Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa035e43b9e3d457…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 14:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0960a145e692c1f1fdebb80aee8bf319 SHA-1: 3c75cb0851881dbf1d795953aff0c6ed299c5a47 SHA-256: aa035e43b9e3d457b7b5f32f69469ad38141d17745746cfffd0287aa152b4b3e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to shopify.com domains, but one critical link redirects to a known malicious domain (ttraff.cc). This suggests a link farm or redirection tactic to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be the malicious redirection URL.

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.cc/pify?keyword=baroque+architecture+pdf In PDF document text
    • http://files.flyingbeauty.ch/uploads/1/3/1/0/131070202/7d5b3faed66c.pdfIn PDF document text
    • http://files.minasabritabrizi.com/uploads/1/3/2/7/132741429/f235f7328680f0f.pdfIn PDF document text
    • http://files.diamonddusterssoftball.com/uploads/1/3/0/9/130969809/7834564.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/1/0431/8858/4605/files/65341018434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7768/8743/files/wivig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/nofugofezumere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6921/0773/files/lasesejoxeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6871/8242/files/58296561446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/lawujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5407/1957/files/gomejisusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/wupop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/45727399901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6864/files/70668781678.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
🗂 Part of campaign: bellvillerent-all.com 4 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E20 5208 bytes
SHA-256: a45cc5b6a0f60e334569c0cafa42a3a52936880b0313d233e64ec8d04647d6b2
font_01_sfnt_off00007fd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD4 9916 bytes
SHA-256: 2925c1c6ba0f286175a9077acd391cd568f384017e807a61bf8520d4d54775df