Malicious PDF — malware analysis report

Static analysis result for SHA-256 a612d082c8a8813c…

MALICIOUS

PDF

41.6 KB Created: 2020-08-12 01:39:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 91bcfb5b471730a9731be20a842af121 SHA-1: c862245bef73663ffd2763939db6421306417965 SHA-256: a612d082c8a8813ccf32ba4a3584c09b671597c24438096b66de6e63e75d0c44
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to SEO-optimized PDF documents hosted on Shopify. One of these links, specifically the one associated with the text 'Architects in delhi ncr pdf', redirects to a malicious domain (ttraff.ru). This indicates a likely attempt to drive traffic to malicious infrastructure through a link farm, potentially for phishing or malware distribution.

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.ru/pify?keyword=architects+in+delhi+ncr+pdf In PDF document text
    • http://files.rethinkstigma.org/uploads/1/3/1/6/131637362/0567bbabb.pdfIn PDF document text
    • http://files.daniellamoffsonfoundation.com/uploads/1/3/0/7/130738603/a9c138fe.pdfIn PDF document text
    • http://files.picassofaceandbodypainter.com/uploads/1/3/1/4/131453151/4904285.pdfIn PDF document text
    • http://files.fromagarden.com/uploads/1/3/2/3/132302733/xuvowoziredox.pdfIn PDF document text
    • http://tonapapu.threeaineconsultancy.com/uploads/1/3/1/4/131406950/2703618.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/1/0430/4617/4877/files/zusipuxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/pumijowazoxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2413/7890/files/18600205659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/wifomesejela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4292/9821/files/88904020448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0704/1958/files/brother_mfc_l2700dw_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5687/4151/files/35736643118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5961/5646/files/733436072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9643/2021/files/81633630816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0266/6914/files/xipuka.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: sweetbrookfarms.com 6 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C9 5024 bytes
SHA-256: 2c9258ff4865af8d403aa387f7f7bcdec912aff83085e9710751df687f839e96
font_01_sfnt_off000075d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D2 10080 bytes
SHA-256: 7e0b27a576cac374f7ed3b11196f70d6d2ef9a408a16ef00df989a64520894a0

Open this report in the interactive analyzer, or submit your own file for analysis.