Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe3ce6dfc49ce623…

MALICIOUS

PDF

74.1 KB Created: 2021-02-11 20:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 8b417c3cf9bacd19d4957167e1d1b4d5 SHA-1: 494e9120a95f77e473b537c40246b3782b5aa6b6 SHA-256: fe3ce6dfc49ce623a7ed9a89a893eeff5d0991334e8888bc92bf894a20f4153e
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, specifically as a phishing trojan. It contains an embedded URI pointing to 'maypoin.ru', which is likely intended to host a malicious payload or redirect to a phishing site. The document body, though partially corrupted, suggests a lure related to learning English, which is a common tactic for phishing documents.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://maypoin.ru/123?utm_term=partes+del+cuerpo+en+ingles+y+pronunciacion PDF link annotation
    • http://vash-fasad.live/82146621131hxp67.pdfIn PDF document text
    • http://mercelus.xyz/podudirotovuvidogesenijo1pa.pdfIn PDF document text
    • http://waystep.site/adobe_photoshop_elements_2018_windowsjvuwh.pdfIn PDF document text
    • http://card2card.live/chemistry_balancing_nuclear_equations_worksheetxcvjg.pdfIn PDF document text
    • http://reduslimer.website/99335280894cu2f2.pdfIn PDF document text
    • http://smotrikino.fun/best_4k_gaming_wallpapers_for_laptop6dxx9.pdfIn PDF document text
    • http://repair-kvadrokopterov.ru/tous_les_courants_philosophiquesms0ik.pdfIn PDF document text
    • http://reduslim-italia.website/164679940939e9v7.pdfIn PDF document text
    • http://moshon.space/advantages_and_disadvantages_of_upward_communicationik6ia.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/sorogamat/video_er_mac_os_x_free.pdfIn PDF document text
    • http://kepipejesa.epizy.com/99846777255.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/for_mac_firefox.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/81439828426.pdfIn PDF document text
    • http://pepesilazofef.epizy.com/confined_space_program_template_ontario.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/bapodakumozesevo.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_off0000e078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE078 5344 bytes
SHA-256: 62e65a7a628ae1283c3983f60271ea72d3a55a7d34b3f11e10dd09e2752a6462
font_01_sfnt_off0000f2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BB 12008 bytes
SHA-256: 175d569bb0b1abd6f3b282617a2e21daf062e46e2511d282e8b5b78769dd32b9