Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e961e545e58f563…

MALICIOUS

PDF

71.3 KB Created: 2021-03-08 23:06:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: a8159f68f870c7574eeb03ca3a39f61e SHA-1: 7f6e60bbe85e86e1a3cdadad4db2f8f994ec4a0d SHA-256: 0e961e545e58f5633ed47521576554cd70a37d873823eca3f23a75c503a868d0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, with a high risk score. It contains an embedded URI pointing to 'fokemale.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to smart home device installation, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wb?keyword=how%20to%20install%20a%20ge%20z%20wave%20switch PDF link annotation
    • http://mesretly.xyz/jodujem13y1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393362/normal_6040f7e349835.pdfIn PDF document text
    • http://choosemadam.site/night_mothers_gazeqk6nl.pdfIn PDF document text
    • http://want-seo.ru/melubiwaxazalo9rcd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379731/normal_5fdfd0511bba8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483070/normal_6042f4a228108.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/performance_of_agriculture_sector_in_ugandafhxu2.pdfIn PDF document text
    • http://raisinsapp.pro/17268901127wxpz9.pdfIn PDF document text
    • http://tesubozapo.22web.org/new_dog_man_books_coming_out.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472198/normal_601723bd068b0.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/sorapobuk/45142777133.pdfIn PDF document text
    • http://gonaviniji.epizy.com/latuxofatipiregawat.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/gavigojufaz.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/kudalikixe.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/daxumovobidi.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/34044481895.pdfIn PDF document text
    • https://s3.amazonaws.com/rogugagatuf/business_model_generation_alexander.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/65454877671.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/84450695536.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_off0000dad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD4 5128 bytes
SHA-256: 92cf6cdaee8e800dc08af61c50817593bc77e0e26a0d66e30bf5d2d0f1d04e7b
font_01_sfnt_off0000ec68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC68 10440 bytes
SHA-256: 199196d0e5d55de954fd51d55e25907f2bc06f065e58871f0467129559163aef

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