Malicious PDF — malware analysis report

Static analysis result for SHA-256 0730b250b47a9250…

MALICIOUS

PDF

56.6 KB Created: 2020-08-22 04:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d87237c82721a5e28ffcbf482c21c7e3 SHA-1: 08c3cea8964577f95dfdfd09b3136edec836b78a SHA-256: 0730b250b47a925003bdb57740e986fa3ec7e0e43888f6a17f32a8faf46d37c2
234 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, likely for phishing or malware distribution. The document body and heuristics indicate a lure related to academic information, specifically a 'date sheet', to entice users to click the malicious URL. The presence of numerous links and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=up+deled+2nd+semester+date+sheet In PDF document text
    • http://files.baitboatkit.com/uploads/1/3/1/8/131872054/6eca82a07a99891.pdfIn PDF document text
    • http://files.pranicspark.com/uploads/1/3/1/3/131398143/muted_febef.pdfIn PDF document text
    • http://files.willowoodfurniture.com/uploads/1/3/2/6/132695351/19998273d.pdfIn PDF document text
    • http://saves.gammaetaepsilondkg.com/uploads/1/3/0/7/130739897/fowaridu.pdfIn PDF document text
    • http://siropuz.alamodekabashsewingshop.com/uploads/1/3/0/8/130874043/99321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8891/2290/files/js_blob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0443/6390/files/73195337834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/neurotransmisor_acetilcolina_funcion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6883/1382/files/analysing_survey_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3956/1630/files/rexekimadanaminitabog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2940/5600/files/17155836987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7700/files/benubili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/sokusojonotevowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6173/0718/files/xulukorigizavowuwarabin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3369/8209/files/60250530598.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8977/9106/files/72331620210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5811/0363/files/kujalolebavagolim.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6952 5320 bytes
SHA-256: c98160a8903d546ff431fa5fb830f42751782324d43d29ddb22be5a79e9e3027
font_01_sfnt_off00007b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3A 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off0000869d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x869D 14152 bytes
SHA-256: a516c0ce46efc1562f6ce5d8b384d34a93dbb0b72cb004315a52c5ddae555eb4
font_03_sfnt_off0000b29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB29D 9968 bytes
SHA-256: a7af80f5a82cedd0d9f74f496b5f263bd841e36155b20ce8d8f3402bb326f8c7