Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed00af6df946b8c9…

MALICIOUS

PDF

40.2 KB Created: 2020-08-10 21:47:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c4ac8bcdf99d79d26a2dde88229054e SHA-1: 30f0ef77a8848437e242b16c145e4b6e5c7a24e0 SHA-256: ed00af6df946b8c94772fa1a0fc460497a0ef64ab1439a2926e618d5790e7f6b
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The embedded URL points to `https://ttraff.cc/pify?keyword=concierto+de+aranjuez+para+trompeta+pdf`, which is likely intended to lure the user into downloading further malicious content. The document body text, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on various domains, suggesting a link-farming or redirection scheme.

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=concierto+de+aranjuez+para+trompeta+pdf In PDF document text
    • http://baxul.thatonepinkdog.studio/uploads/1/3/1/4/131438079/zowefunexesogox.pdfIn PDF document text
    • http://files.mrandon.com/uploads/1/3/0/7/130775970/fojijuxaxi-tunovipipajek-kufakaresu.pdfIn PDF document text
    • http://files.mysummit18.com/uploads/1/3/1/4/131454255/f5f20.pdfIn PDF document text
    • http://files.roots-to-health.com/uploads/1/3/2/7/132712057/zowasowugi_bikoruxuwavob_vosexarawexulu_jorofo.pdfIn PDF document text
    • http://files.sandiegofinchandsoftbill.com/uploads/1/3/0/7/130739214/gapotijunib_foloj_xagajakevimon_pigasi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5649/4757/files/toremev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3301/0074/files/apc_smart_ups_1500_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/42316452131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6282/files/23200869749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4855/1068/files/71439568183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1045/6726/files/wunex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3705/6414/files/retikavid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/satofotomenetuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/98953827090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5951/0424/files/rolujuwaxorazimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1557/files/99085074949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/82960118523.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005032.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5032 5124 bytes
SHA-256: 49d3de827082a6fc62c368eed6344f20b4a37a7f21a4564249ce029187375244
font_01_sfnt_off00006192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6192 10564 bytes
SHA-256: 1c3e6e26d93307624a36082a9a2bb42fa466d9dca4fab28de834082754d86e47
font_02_sfnt_off0000840f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840F 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333