Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d1b266aa1a7abd…

MALICIOUS

PDF

40.6 KB Created: 2020-08-14 05:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 700459ef618678204ff4cc0f93ae0737 SHA-1: 4669ba23e71473e903949f994c50fececa259ed0 SHA-256: 79d1b266aa1a7abd7fc55789ba36dfb894bde70bf7b579e97bf79dbb96766f26
170 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to redirector infrastructure designed to obscure the final malicious destination. One prominent link, 'https://ttraff.com/pify?keyword=google+assistant++for+windows', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other PDF files, suggesting a coordinated effort to distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=google+assistant++for+windows In PDF document text
    • http://files.santabarbarabirthmatters.com/uploads/1/3/1/0/131070151/906310182465.pdfIn PDF document text
    • http://files.pigmentsolution.de/uploads/1/3/0/8/130874422/7490433.pdfIn PDF document text
    • http://files.newconnectionsmetrodc.com/uploads/1/3/0/7/130776645/59d09d4b54c2c.pdfIn PDF document text
    • http://gikoxun.406flies.com/uploads/1/3/0/7/130739173/figerafelusujej.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/1/0432/5202/3458/files/application_of_binary_search_tree_in_data_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2853/7753/files/tejawuret.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/piroluzut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5392/2981/files/xijazumodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/working_environment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9320/files/96133600079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/4213/8262/files/skywatch_tv_guide_nz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9425/2456/files/9533650287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/gmat_analytical_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4287/3249/files/zugub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7485/5846/files/17660105166.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: astorialogisticsgroup.com 4 samples

Related samples 5

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_off00006048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6048 5200 bytes
SHA-256: b96c907469881de13d92c68b8a9f4365325b38ac6a3ab3c7ec8e8ac27a9b6772
font_01_sfnt_off00007218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7218 10428 bytes
SHA-256: 8af1e2ef35ee5e9626906779e355ea221cd00aee7fc0320d37f0b3f5271a7c00

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