Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08795cc4989475b…

MALICIOUS

PDF

63.3 KB Created: 2020-11-23 00:11:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c6676ee8bcbb946cc45b05df2b68c747 SHA-1: d3fe49c25c49b663876062f9625ac79e2d9c9dd3 SHA-256: e08795cc4989475b74e44befc484d04399753ba916a730bae867a9060b5bbd9d
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/123?utm_term=orville+redenbacher+popcorn+oil+directions PDF link annotation
    • https://gumebasa.weebly.com/uploads/1/3/4/5/134509515/jimepeluxi.pdfIn PDF document text
    • https://gupamawuma.weebly.com/uploads/1/3/4/6/134602371/kivisasulopizis.pdfIn PDF document text
    • https://sorimuzumetig.weebly.com/uploads/1/3/4/5/134519591/1729804.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_5faf6488363f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445864/normal_5fae7644759e2.pdfIn PDF document text
    • https://midoninojun.weebly.com/uploads/1/3/4/6/134665084/c9305e6df50.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/online_bhojpuri_song_2019_dj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c4272f4-9ee1-411f-b9aa-aa42d94d7848/rinukezipamufubiduxu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81a5831b-3491-4f0f-a469-bff87d41959f/89847676674.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98bd0265-4788-4648-a441-ccc29ecabcea/essential_clinical_anatomy_5th_editi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d4c17cd-e6a5-4f0d-907e-95cd1261b1f7/savifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c528975-0922-4eff-ba13-834c56792126/few_things_left_unsaid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15513e91-e35b-414a-9eb8-ab0461ffe744/zojasisoropitu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10e9ea5c-1e11-435e-9882-6e51e1e7b594/pebumepepegilur.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA27 5388 bytes
SHA-256: 3973503f5ddcb62bfdcd79b45980f6753bbf75c6c4620ce891683d9b1ea57420
font_01_sfnt_off0000cc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC6A 10664 bytes
SHA-256: 9266b316dc58626bc403f5b958ad1e60e6631cde72abb2b1762b1edfc7158238

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