Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98f925a47cf1e6f…

MALICIOUS

PDF

74.4 KB Created: 2021-05-15 21:09:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5fe775e38211ae263e662c77cb0c1d33 SHA-1: 718da0c612b03f7d31289ed9ffe62942e8204ba0 SHA-256: e98f925a47cf1e6fbc53163e9cae5d3b82674c9a8671698749baa21e3942ae71
126 Risk Score

Malware Insights

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

The PDF file contains embedded URLs and is flagged by multiple heuristics as malicious, including a phishing and trojan detection. The document body, though heavily obfuscated, appears to reference search terms, suggesting a phishing lure. The primary malicious URL identified is likely used to host further malicious content or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://seumenha.ru/strik?utm_term=john+deere+lawn+tractors+for+sale+kijiji+ontario PDF link annotation
    • http://mritzoliver.design/60733199542d5lxj.pdfIn PDF document text
    • http://mebelintera.ru/72228214931l78i5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420470/normal_603a500379aad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451561/normal_5ff6837a7a662.pdfIn PDF document text
    • http://kernig.pro/beautiful_disaster_lyrics_jonhenpj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502511/normal_602d1feecfdd9.pdfIn PDF document text
    • http://azalea.store/10_500_cool_facts_about_angel_fallsh0fdu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/448fa1bb-a4aa-4c66-9337-0f53ba09c4ab/marupigepawugupomukawem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee855c9e-2af2-4298-9358-456619d09c61/what_are_the_essential_elements_of_report_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/14817311043.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78ae628b-b715-45c9-a65b-0025daabfd37/72915108136.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfbe6ee1-2d07-4d16-af53-96329525c298/65797942282.pdfIn PDF document text
    • https://s3.amazonaws.com/tinivukedeta/67301376617.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddecd31b-ce26-472b-856a-1e5cdf794a6a/line_6_firehawk_fx_patches.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/rhetorical_reading_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/muxozuvalubi/lsbf_acca_p4_video_lectures.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/904b75f3-0009-4604-a0e8-970dbc54278c/bissell_poweredge_pet_hardwood_floor_bagless_cleaner_stick.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dab7d755-1662-4c9f-8d72-e0f41552c599/gisir.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_off0000e6ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AD 5328 bytes
SHA-256: 9518d889fec6d474eb2ac65908177cf8014bafc8dac378252db4d0194dd5da61
font_01_sfnt_off0000f8da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DA 10324 bytes
SHA-256: acfba58e190e814c00e3b74697fb90c973503d2bb011e51d59546bb943dae537

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