Malicious PDF — malware analysis report

Static analysis result for SHA-256 265377df54dc310d…

MALICIOUS

PDF

67.0 KB Created: 2021-01-05 20:49:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 22638a0c26896eb1ed941e14e983551c SHA-1: c3f522deaf9046e95b1c04d1a68cf6dac8322c70 SHA-256: 265377df54dc310dea118d07e5fe6dd5480e8dd6cbbb91b7df4b0d10fb4564e0
214 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector infrastructure at 'traffking.ru'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting an attempt to manipulate search results or distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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/aws?utm_term=bell+bottom+full+movie++movierulz In PDF document text
    • https://cdn.sqhk.co/lotivadafe/kjjRjjs/85455737698.pdfIn PDF document text
    • https://wumaluko.weebly.com/uploads/1/3/4/7/134716396/labikiteligewup-difak-mipexaborebipo.pdfIn PDF document text
    • https://zisinifaja.weebly.com/uploads/1/3/4/5/134599776/siwajuxosor.pdfIn PDF document text
    • https://cdn.sqhk.co/lukizigerex/Sl2rieH/dagurebegirabagezabopi.pdfIn PDF document text
    • https://xefakiradu.weebly.com/uploads/1/3/1/8/131856624/rizorosomozupel.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/jubiferekaka/85155023316.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/40874947361.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/33743741051.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/zolix.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/eeo-_1_report_filing_requirements.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/zimofebenuriwagemoguko.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/network_adapter_free.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_off0000cc4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4F 4824 bytes
SHA-256: 315b0a8220ae8c2fcfcc4ec67ab7d4397a0973cbc1c378c183a4ba4a746adc80
font_01_sfnt_off0000dcb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB4 10476 bytes
SHA-256: 5a85240c80e92972ef028a22ee6357dc5fec644e4b9c47f62e5c8ffc23431ba4

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