Malicious PDF — malware analysis report

Static analysis result for SHA-256 879d7e687d8096fb…

MALICIOUS

PDF

34.1 KB Created: 2020-08-18 22:48:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2cb57b5e3d7f37ccb63bccae03a0ba26 SHA-1: b192ed64c7191718d7e2fb065b584aae3d787e4c SHA-256: 879d7e687d8096fb0dd2109ba4b4e005f697f191a8167b2f87ca59d546191a55
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at `https://ttraff.com/pify?keyword=grandstream+gxp1615+datasheet`. This redirector likely leads to a phishing page or malware download. The document body text, though heavily obfuscated, also contains this URL, suggesting an attempt to disguise malicious content as a datasheet. The presence of numerous external PDF links further indicates a link farm or SEO abuse tactic to distribute malicious content.

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/pify?keyword=grandstream+gxp1615+datasheet In PDF document text
    • http://files.ccsfashionjewelry.com/uploads/1/3/1/1/131164310/dalapezamadawo_rigidakesil_jufopubakidif.pdfIn PDF document text
    • http://files.teamcarnabymotorcycles.com/uploads/1/3/0/9/130969054/260cb4.pdfIn PDF document text
    • http://files.chicagoland4x5.org/uploads/1/3/1/3/131384468/bamisum.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/1/0450/9263/4789/files/47925801088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0531/3177/files/kaxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/materi_akuntansi_keuangan_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9764/0360/files/51509161940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5572/7260/files/boposi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4314/files/metodologia_dela_investigacion_en_psicologia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7428/9813/files/barron_s_6_sat_practice_tests_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1093/0341/files/algebra_high_school_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5095/0041/files/62321612987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7139/6257/files/55820755448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0546/8068/files/mabuvisovelowapab.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: chicagoland4x5.org 4 samples

Related samples 4

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_off000047a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47A9 5772 bytes
SHA-256: b0a5c7b9cbd04b704f242be7f93eb3f4fe1cd69be66df3a3e92e055ade4bcdb4
font_01_sfnt_off00005b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B37 9504 bytes
SHA-256: 760bf1f96b91adb1838ba403526c8970ca530d575ea0ac9bd5f2391e38b6ad7c

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