Malicious PDF — malware analysis report

Static analysis result for SHA-256 e096cc46ce7e20f2…

MALICIOUS

PDF

87.0 KB Created: 2021-02-21 12:24:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: bf890a3dcd6c1997ced88db38764ce7c SHA-1: b6acee65d357f053239ee1adbef0dc33ea50f000 SHA-256: e096cc46ce7e20f2ce8f0fd3902e9872ffc5615dde1057321be15382cbd7f98e
96 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, specifically as a phishing trojan. It contains an embedded URI that directs the user to a website disguised as a search result, likely to trick them into clicking. While no scripts were explicitly extracted, the nature of the PDF and the embedded URI suggest it's designed to lead users to a malicious site, potentially for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wb?keyword=learn%20muay%20thai%20online%20free PDF link annotation
    • https://cdn.sqhk.co/puwipaneke/ghgieOT/komofewirul.pdfIn PDF document text
    • https://cdn.sqhk.co/sewujuzanas/7gjvzhf/78347022288.pdfIn PDF document text
    • https://cdn.sqhk.co/dugixikisim/hChxnXN/thai_characters_translation_to_english.pdfIn PDF document text
    • https://cdn.sqhk.co/vizelupavew/BVicig6/real_talking_parrot_price.pdfIn PDF document text
    • https://cdn.sqhk.co/dovawowo/wgdilja/golozisenutotow.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/QoEEOgh/lanakuj.pdfIn PDF document text
    • https://cdn.sqhk.co/punenekebi/Fjahfjc/best_buy_credit_card_number_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/dogutadova/YhdNjcJ/crash_cart_drug_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/gupuwiwi/Bjcidgd/raritila.pdfIn PDF document text
    • https://cdn.sqhk.co/nedivixozu/jiwlG7a/63526538558.pdfIn PDF document text
    • https://cdn.sqhk.co/jozojonujaj/0hh82gf/slide_away_miley_cyrus.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/jj1jfjf/71397717434.pdfIn PDF document text
    • https://cdn.sqhk.co/votexeruwiti/hjjjIU7/pavijibenuxulawipuni.pdfIn PDF document text
    • https://cdn.sqhk.co/tekuligote/aDNGmRS/tukitelibop.pdfIn PDF document text
    • https://cdn.sqhk.co/mujawiru/hbhbxNH/zefifomelaliduxape.pdfIn PDF document text
    • https://cdn.sqhk.co/rubuxupab/gfEibib/sijobebodobum.pdfIn PDF document text
    • https://cdn.sqhk.co/libegavezu/1AAUtZl/puruxowatukerurumadu.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/QjdQhit/greatest_hits_of_the_80_s_album_cover.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/bikikanafopavu/florida_dmv_trailer_bill_of_sale_form.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/today_hourly_weather_report_in_chennai.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/63102688734.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/82867739739.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_off000118da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118DA 4872 bytes
SHA-256: 83a2da27af83444410ffaa22ed0fd4048d51c20a468e522e398049c905662ee6
font_01_sfnt_off0001294f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1294F 10988 bytes
SHA-256: 67909281e4b38b881fb903d519402030799f96bea495f659f1be6ecd17944b8b

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