Malicious PDF — malware analysis report

Static analysis result for SHA-256 d48c42a7c517b959…

MALICIOUS

PDF

74.7 KB Created: 2021-03-02 15:56:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 42764a5673045ce5b66967a09317fa57 SHA-1: a4287c24d2d86516f35f3702ac87caadde67b58d SHA-256: d48c42a7c517b959d240123e57e6c4cb56b728f68e4c882a41157afe80bc6c42
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a known malicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, appears to be related to search results for 'Matthew Hussey dating show Netflix', suggesting a phishing or social engineering lure. No scripts were extracted, but the presence of a malicious URL and the ML classifier's high confidence indicate a phishing attempt.

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://xezojetit.ru/strik?utm_term=matthew+hussey+dating+show+netflix PDF link annotation
    • https://cdn.sqhk.co/wozepefiga/4GpgdFw/fifa_world_cup_2014_full_matches.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/can_normal_force_be_horizontal.pdfIn PDF document text
    • https://detimuveruriwus.weebly.com/uploads/1/3/1/8/131872178/nosamaba-timivovu-gafoluk.pdfIn PDF document text
    • http://nowukusox.mypressonline.com/negujuxonetuvojirik.pdfIn PDF document text
    • https://toxupuxuforiri.weebly.com/uploads/1/3/5/9/135966975/cd05c92dbaddcbb.pdfIn PDF document text
    • https://cdn.sqhk.co/vorebilifi/mDkhidB/gafukugisikubiponozufu.pdfIn PDF document text
    • https://vesabigixovo.weebly.com/uploads/1/3/1/8/131857304/776172.pdfIn PDF document text
    • http://tradebot.space/mastering_the_mix_expose_freexq21n.pdfIn PDF document text
    • http://lamejix.scienceontheweb.net/zilufevapututigapex.pdfIn PDF document text
    • http://zipubezexupoka.mywebcommunity.org/d_and_d_books_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/ia9F4jb/best_free_bass_booster_for_iphone.pdfIn PDF document text
    • http://rasazajafatirek.mypressonline.com/rising_of_the_shield_hero_anime_vs_light_novel.pdfIn PDF document text
    • http://free-at.pro/36310341337h0rl9.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/remufuzu/55571404441.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/toloxijabebisula.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/she_s_callin_i_m_yawning_song.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/prisma_systematic_review_template.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_off0000e612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE612 5340 bytes
SHA-256: 02fef7dbcf9b581431732e346db89edb609beff6720bec3895f6de67f7399ebc
font_01_sfnt_off0000f86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF86C 11064 bytes
SHA-256: 3ddcd7ab82484668efa6d96ae5e8266e6ba8bb470e8bff7756f09528b36d5e71

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