Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e1c60319a3adfa…

MALICIOUS

PDF

68.6 KB Created: 2020-11-11 11:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 5177ea1d274dca16e8536ccaefe2c9d0 SHA-1: 8c1dce31fbeb5cd3f065df4ddb49c0b3bcf382f6 SHA-256: 32e1c60319a3adfa2645993787315406f83da7eb96d2f1ebdab62fbc0e256794
214 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many of which point to redirector infrastructure and potentially malicious sites, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The ML classifier and ClamAV also flagged this file as malicious, specifically as a phishing or trojan PDF. The document body, though heavily obfuscated, contains keywords related to 'pokemon quest apk file', suggesting a lure for potentially unwanted software.

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
  • 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/strik?keyword=pokemon+quest+apk+file In PDF document text
    • https://bezebaterizijir.weebly.com/uploads/1/3/1/3/131384714/vepegesobixuvam-zotadimafawo-mimat-girozades.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415302/normal_5fa9c23cdfa25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451374/normal_5fa1dc1e456de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405953/normal_5f91b5fb2a38b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367283/normal_5f9a4ba3bafe8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376125/normal_5f8b61b7abfec.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/zetare/pdf_anamnesis_psicologica.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/port_san_luis_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/bomb_it_5_y8.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/76297031563.pdfIn PDF document text
    • https://s3.amazonaws.com/peveziwoguxuzam/81285220127.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/91103266303.pdfIn PDF document text
    • https://s3.amazonaws.com/xatojem/ebay_ultralight_aircraft_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddfeb2c4-30f0-4149-ab70-0ce37da1e43e/michael_be_more_chill.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_off0000c479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC479 2900 bytes
SHA-256: 9c84aca5171cf4522e1fd23f3e5391e17c8e645cdcb740b4c3036af6865bd014
font_01_sfnt_off0000cebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBE 5144 bytes
SHA-256: 30a60e9b23f4aa46e470aef680faeffc3a0ffb3bad4349de08f0597ec2e96ae2
font_02_sfnt_off0000e03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE03C 11064 bytes
SHA-256: 093b7ffe2e26b02d1a85df4c4beeec131e136331d803303ff32e5eb790e1c441

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