Malicious PDF — malware analysis report

Static analysis result for SHA-256 049f978f937587f5…

MALICIOUS

PDF

63.9 KB Created: 2020-12-27 14:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9b1bd2e33cc73d0ac6f646dcf92420c0 SHA-1: bf6a4f93262897646c184c8691d6e60e80addeda SHA-256: 049f978f937587f500f70b2ba188f5726e7b52c35af47844880b85a4e09d6590
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting a malicious intent to manipulate search engine results or redirect users to malicious sites. ClamAV and ML classifiers also flagged this PDF as malicious phishing content. While no scripts were explicitly extracted, the presence of numerous external URLs indicates a phishing or spamming campaign.

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://trafftec.ru/123?utm_term=coosa+valley+elementary PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369317/normal_5f93a9de8cda9.pdfIn PDF document text
    • https://cdn.sqhk.co/vikoparif/UGbzIbp/nigeria_church_worship_songs_lyrics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369779/normal_5f9c048542776.pdfIn PDF document text
    • https://cdn.sqhk.co/libarazituw/1ihEQjh/gun_shoot_war_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jelivapizivo/hfZK4gd/63807407463.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387703/normal_5f8dc0306cf14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379610/normal_5fd7d3a463f20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464869/normal_5fab1a90cd618.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/74e88eb3ff4c.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/xapidajovaji/static_and_dynamic_characteristics.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/takeuchi_tl126_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/44632123341.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d4ffab0-77e6-4eb2-a2f7-d4c734181159/14588816435.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/woneduxakubavef.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/troy_bilt_tb80_ec_manual.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_off0000bf05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF05 4900 bytes
SHA-256: fb428188fa062da0586102d5876329839e036e3d374d11678a07b78b553e37d0
font_01_sfnt_off0000cf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9D 10344 bytes
SHA-256: 70407508f288f3c87150b56a2043db1719e0e25f80ccd4889aecf02e30b1d929

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