Malicious PDF — malware analysis report

Static analysis result for SHA-256 419b497260a750a9…

MALICIOUS

PDF

39.2 KB Created: 2020-08-21 13:16:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6983dd8abf2dd517f5518d25cbf06f48 SHA-1: 891694f492d398205d8f0eeb78cfd807fae0e829 SHA-256: 419b497260a750a93d625fc45d540bac52a81cba966c0a0259f97bd873981069
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. The primary intent seems to be directing users to malicious sites, likely for further exploitation or credential harvesting.

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=ontario+progress+report+language+comments In PDF document text
    • http://gositim.bcdgonzalez.com/uploads/1/3/1/4/131483138/fasodizedisako.pdfIn PDF document text
    • http://files.fcdetail.com/uploads/1/3/0/7/130739175/kaloxetusotat-jemezizi.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/1/0435/6122/2307/files/ielts_band_9_academic_writing_task_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/97813949524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/algebra_1_mcgraw_hill_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/losevavedutagekovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0631/2093/files/87747369366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8529/9874/files/bacterial_diseases_of_crop_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/bioconjugate_techniques_3rd_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6746/files/adobe_reader_offline_installer_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3917/6342/files/91820269995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5392/4004/files/bahut_aayi_gayi_yaadein_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/challani_o_chirugali_ayyappa_naa_song.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: fcdetail.com 3 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_off00005b3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3B 5280 bytes
SHA-256: 2fcdb4cd185a603833054c04ec02dcbae29a78ea8ad515917f7de24709d24ffb
font_01_sfnt_off00006d1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1A 10288 bytes
SHA-256: bf05b4b46a49d56724a7336471901ceef412a3285a984cf38fa0f2dd060a3aae

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