Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea27066057ccb86…

MALICIOUS

PDF

83.4 KB Created: 2020-11-16 13:25:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5b480292ad5afb73fbb15a7d3e4bee30 SHA-1: dfc5b575c81ac569e1c3854a7911f5b96ddb5d9f SHA-256: eea27066057ccb86463f584c51f919f0eeeed5d4b8eacc6aec329f464c5873f7
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/123?utm_term=common+descent+definition PDF link annotation
    • https://disavapiviloma.weebly.com/uploads/1/3/4/3/134351159/7257334.pdfIn PDF document text
    • https://pavofadibap.weebly.com/uploads/1/3/4/3/134370944/vujiwimoba-gumedogitig.pdfIn PDF document text
    • https://roxejane.weebly.com/uploads/1/3/4/4/134486752/3903434.pdfIn PDF document text
    • https://luwinititik.weebly.com/uploads/1/3/4/5/134587042/somijez.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/tinajabizoreguf/aace_lipid_guidelines_2018_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b95f5f5-61c2-45f2-b36f-0bacd24bb4c8/ganobugizikebalazug.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/comptia_security_sy0-501_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/bifadiwuwileji/41420837632.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/41080076547.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79c25388-36b5-457b-9512-7707669c1fee/gajewanilab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b491b5bf-3078-40d2-9236-f2ad768af427/13453608237.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/direito_penal_parte_especial_bittencourt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2355488f-1595-4592-94ed-021b87457fbd/53112305296.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/fopebaluvujuteken.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_off00010b85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B85 4736 bytes
SHA-256: c16eaeaf1465344466457809c71938cfa834a0bd99a7d793f74273bcd62079fb
font_01_sfnt_off00011b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B92 10932 bytes
SHA-256: cdc83127f016088428d456bb4c4256fb93244bd35cba1caaec8f2c8fc07bf21d

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