Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed6f1ab2bdf9a2b…

MALICIOUS

PDF

74.8 KB Created: 2021-03-04 01:50:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 613ce8d8f7d078b9092de5d3048cb8e7 SHA-1: da8bd32173d5d478d8aacdccd0326226b45b3730 SHA-256: 8ed6f1ab2bdf9a2bc0d0c8a2168d0e12189acd530a0feb5ad37c8d16072084a0
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI that directs users to a URL seemingly related to salary information, likely a lure. ClamAV and ML classifiers identified this PDF as malicious, specifically a phishing trojan. The presence of external URIs and the nature of the detection suggest this file is designed to redirect users to malicious content, potentially for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/123?utm_term=how+much+does+a+security+guard+earn+in+usa
    • http://garant-ritual.online/95913262950e4k8d.pdf
    • http://maleev.online/what_does_harley_extended_warranty_cover9es56.pdf
    • http://fsbsiod.com/povadofanisejupusawitohut71.pdf
    • http://prizinsta.info/jenofififuzegaworuxuwei2ugc.pdf
    • http://dobogoj.iblogger.org/how_to_fix_a_jammed_pellet_stove_auger.pdf
    • http://freshka.fun/zetitufonobuleiiati.pdf
    • https://gizomedapirev.weebly.com/uploads/1/3/1/4/131454265/zarumozi-limedopijodekez-migejetuwa.pdf
    • https://luresigixake.weebly.com/uploads/1/3/5/2/135294948/rodadej.pdf
    • http://hugertely.xyz/zirelogevowafuronigusudai6d7m.pdf
    • http://gejekixevase.22web.org/87166048423.pdf
    • http://voztrans.ru/tangerine_book_download4j4ae.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fufibilola.epizy.com/jiwex.pdf
    • http://feriwodapep.rf.gd/walt_whitman_high_school_bus_schedule.pdf
    • http://dafitigare.epizy.com/dorian_grey_chapter_summary.pdf
    • http://resisimokopi.epizy.com/6500591093.pdf
    • http://savefativiluz.epizy.com/hotstar_app_version_7._3._0.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e48f.bin
f408358b7dbf3e2330f2ee2ef2e1514efdfbc8fdd0d5bb815b09d871a488b8a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE48F 5476 bytes
font_01_sfnt_off0000f717.bin
c7c9b1c3ccc86941eb9a360a74d96b41c697534137ef84b8d66139f13221b91b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF717 11236 bytes

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