Malicious PDF — malware analysis report

Static analysis result for SHA-256 798872c34b0a0003…

MALICIOUS

PDF

53.4 KB Created: 2020-08-08 09:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9d3bd02f47282687efde9440b37dc9d8 SHA-1: 83141573e6878cc4a14384cb442286fc21486f26 SHA-256: 798872c34b0a000345d55644af4eaefdae020eb8c0c3394a2dee34bf968724dd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing indicating it redirects to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a "Bsp thread dimensions table pdf". This suggests a phishing or scam attempt using a fake document download to redirect users to malicious sites.

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=bsp+thread+dimensions+table+pdf In PDF document text
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdfIn PDF document text
    • http://files.metricsconstruction.com/uploads/1/3/2/8/132814302/sadadiwuwu.pdfIn PDF document text
    • http://files.finewillrockthehouse.com/uploads/1/3/2/6/132695732/tavajulize.pdfIn PDF document text
    • http://files.arlingtonlimoco.com/uploads/1/3/1/3/131398076/2551131.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/1/0435/1941/0335/files/44637469763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2975/6066/files/gaxepegagina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8428/2008/files/angular_4_tutorial_for_beginners_step_by_step.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/clinical_pharmacy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/70768982751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/gawenipisudenire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/30151077184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9060/0355/files/vazikot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/40649682927.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4026/8711/files/26729500418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/37038907403.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CA6 5260 bytes
SHA-256: 7da0f19c9bf812c05e04b07d79a6bf145145851659e160cc9352dbedaa05d076
font_01_sfnt_off00008e53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E53 13876 bytes
SHA-256: 1e9fe4a000c8a432f205e84e71900191d45c1a0eacd54a50e3fb167f59cd53eb
font_02_sfnt_off0000ba32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA32 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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