Malicious PDF — malware analysis report

Static analysis result for SHA-256 97f21f322129502e…

MALICIOUS

PDF

45.3 KB Created: 2020-08-17 06:31:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 83fb04d8842b86fd8fe5b61e0d8dc428 SHA-1: 10355c597cf0702a92cc71204fedd1339f9caace SHA-256: 97f21f322129502e8c8437c1e7b0a35f64f80324528fe591edab3e7a585e2ba0
222 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, impersonating a cloud document service to lure users into clicking. The primary link redirects to a known malicious redirector infrastructure. The document body contains garbled text but includes the malicious URL and several benign-looking Shopify URLs, suggesting a social engineering attempt to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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.ru/pify?keyword=calendar+template+google+sheets+2020 In PDF document text
    • http://files.ifcl.com/uploads/1/3/1/4/131437535/6832485.pdfIn PDF document text
    • http://files.larryhowlettcpa.com/uploads/1/3/0/8/130814636/1220756.pdfIn PDF document text
    • http://tupifusaf.ycheerioschallenge.com/uploads/1/3/1/3/131379379/4c889612c11.pdfIn PDF document text
    • http://merajo.markangelhealingarts.com/uploads/1/3/1/6/131637419/lujiruwuvofeti.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/1/0430/8251/4585/files/75764587567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6309/6984/files/zebagifolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/gizulegugifipeguvigonam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6332/6358/files/uninstall_microsoft_teams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5341/4565/files/discrete_wavelet_transform_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2613/6731/files/mupofedirojifotatanuvugul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5376/9123/files/41525914525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rikakaxudote.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

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_off000073a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A3 5552 bytes
SHA-256: ae83a4750881ffa7f1f0204915a7d6c3e3f78ea167de3a50a0ffb240c6d58345
font_01_sfnt_off0000865c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x865C 9904 bytes
SHA-256: 7d4cd4ca2972065384ae6a38ce01a6a38de41a33608e6c2f52a22d584c7c90c1

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