Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8a34ef02dc3d4b…

MALICIOUS

PDF

76.3 KB Created: 2021-03-04 05:57:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ed16e6720fa643532024d9076cde9be9 SHA-1: 746767d5e089f34452bfcf6d3d0611cb663bec74 SHA-256: ed8a34ef02dc3d4b38cda01453bbf5b4d7b6706143bf8d085cb229b96c0b2a87
104 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with a high ML score. The presence of embedded URLs and the 'Urgency / deadline lure' heuristic suggest a phishing attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs indicate it likely attempts to redirect the user to malicious sites for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://dugedepap.ru/strik?utm_term=what+is+a+safe+haven+law PDF link annotation
    • http://triple-doska4.club/lipuwuwefowudodula5qd80.pdfIn PDF document text
    • https://cdn.sqhk.co/jebozibiru/W9Dhegc/cricket_live_match_today_online_pakistan_vs_england.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/jh7idhi/foretiwixufulodomer.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/fkgcmgd/chocolate_cream_cheese_ice_cream_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/fekawitaxug/zKm6jeP/risk_neutral_default_probability_merton_model.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/49507620057.pdfIn PDF document text
    • http://reduslimitalia-ufficiale.site/xevukapjbowf.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/mijiwefepumofedebamixolafflhoz.pdfIn PDF document text
    • https://cdn.sqhk.co/zidulibu/cibVhji/pixel_car_racer_money_hack_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/NG5n6hf/93692242679.pdfIn PDF document text
    • https://cdn.sqhk.co/ferudati/djd1shh/53438244123.pdfIn PDF document text
    • https://cdn.sqhk.co/fowipovoji/jcfib8x/easy_sour_cream_lemon_pound_cake_recipe.pdfIn PDF document text
    • https://cdn.sqhk.co/wawabosamugo/phfjbje/best_car_driving_games_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rifelefiw/eihmjhB/77562753180.pdfIn PDF document text
    • https://cdn.sqhk.co/pozusonitid/aibjdzF/lepudusapodemowedopaxem.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/80442002148.pdfIn PDF document text
    • http://lixodamevurobar.mygamesonline.org/can_birds_eat_papaya.pdfIn PDF document text
    • https://cdn.sqhk.co/gusisitixinu/hSJ7F7f/31579283906.pdfIn PDF document text
    • https://cdn.sqhk.co/jowapezo/0O6O99b/80_s_songs_rock.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/fvqggpJ/sport_maxx_rt_235_45r17.pdfIn PDF document text
    • https://cdn.sqhk.co/jusupovexewa/Dgc6BL8/zifowejowazavidurarajitaj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000edc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC6 4924 bytes
SHA-256: a56067d9a63868595d934b6eba1486fb916b6e72b38990d070ef3f3635be21a9
font_01_sfnt_off0000fea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA4 10992 bytes
SHA-256: d0973a0f4d515bf04b2f72aa6551b4a79d0a471832c3e763b9f7a02cacb51ef8

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