Malicious PDF — malware analysis report

Static analysis result for SHA-256 e99abb51f86bb8f5…

MALICIOUS

PDF

99.1 KB Created: 2020-12-30 01:09:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ad43158b045987a25731b4fae476ee59 SHA-1: 96dc912d9227c83ea1ec40b71e61f1e6025892a2 SHA-256: e99abb51f86bb8f543663b567e3c210c7d0da3bab166abfe7c710a78e2aefb88
164 Risk Score

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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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
  • 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=showbox+apk+latest+apk PDF link annotation
    • https://sibevuguz.weebly.com/uploads/1/3/4/8/134859718/tuvofoniru.pdfIn PDF document text
    • https://rawiranuxox.weebly.com/uploads/1/3/4/6/134618620/2063085.pdfIn PDF document text
    • https://cdn.sqhk.co/rozopebak/gnhgWSd/xesujodivajiwe.pdfIn PDF document text
    • https://kagivosivozavex.weebly.com/uploads/1/3/4/7/134746508/3440835.pdfIn PDF document text
    • https://towavakivuno.weebly.com/uploads/1/3/5/3/135318123/f15ec89adcc313.pdfIn PDF document text
    • https://xoregofejaba.weebly.com/uploads/1/3/4/6/134651656/ef7e7cd7ebd0.pdfIn PDF document text
    • https://zopojidiluze.weebly.com/uploads/1/3/4/3/134361294/1598410.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://s3.amazonaws.com/rekorewexidiwo/83641948978.pdfIn PDF document text
    • https://s3.amazonaws.com/saxefi/manual_of_quickness.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/cars_and_drives_mod_1.7.10.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/91114475409.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/18015548266.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/reading_comprehension_practice_worksheets_8th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/attrition_analysis_report_excel.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013aaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13AAF 4912 bytes
SHA-256: 0e42331cdc5727aaf0842c94c0ba0d6f5493d2d513e74dd970cf6a6683ac57eb
font_01_sfnt_off00014b7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B7D 10896 bytes
SHA-256: 5bf08aaf7edb5e1fdf3d4a9accc8f42932fb5bb82977879ecb7d716c06ccc601
font_02_sfnt_off0001706b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1706B 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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