Malicious PDF — malware analysis report

Static analysis result for SHA-256 e107fbf93a2982fe…

MALICIOUS

PDF

73.1 KB Created: 2021-03-04 00:49:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b383d81871b46108584b7f243834b0d1 SHA-1: 0209cc8c9294e61f564dcff6fde934dea364ef62 SHA-256: e107fbf93a2982feb7b5a490fe986a34e7792647c7a3d88fffe4ae171b37000a
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a primary URL suggesting a lure related to "Dot com secrets pdf". The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, characteristic of SEO spam or phishing campaigns. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification. While no scripts were explicitly extracted, the PDF structure and link farm behavior suggest it's designed to redirect users to malicious or spam content, potentially leveraging embedded JavaScript for obfuscation or redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://fokemale.ru/wix?keyword=dot+com+secrets+pdf PDF link annotation
    • https://nubesojobe.weebly.com/uploads/1/3/1/3/131398221/dirudapozi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376602/normal_601f5a0290bed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485442/normal_5feb5d9740bf9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422894/normal_5fcc52be4681c.pdfIn PDF document text
    • https://rolobidixogiru.weebly.com/uploads/1/3/1/6/131637372/2aabc4.pdfIn PDF document text
    • https://tubozabuzimez.weebly.com/uploads/1/3/4/8/134878922/46c93e5.pdfIn PDF document text
    • http://daravto18.ru/he_comes_next8s42v.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/napejaxosinages/kick_the_buddy_game_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/ginutodasiketagedegavuv.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/fofulutupilajegumipamozi.pdfIn PDF document text
    • http://zejibanunepi.myartsonline.com/blade_and_soul_unreal_engine_4_date_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/5568797740.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/significant_figures_and_rounding_measurements_worksheet_answers.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_off0000e197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE197 5056 bytes
SHA-256: f8363c5fcee666c72f24572bf052a7f8246af935665da6d5871e82741a4dee43
font_01_sfnt_off0000f2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BC 10896 bytes
SHA-256: 6dcd6f3bcab0b97aad402faca73903fdc6d52b40868995eea9204d07ed7e89e5

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