Malicious PDF — malware analysis report

Static analysis result for SHA-256 08439729d000c047…

MALICIOUS

PDF

119.6 KB Created: 2021-01-17 14:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: fe2b081773b07e54ec8ce93d03cb71b6 SHA-1: 3387203dc7675508646500cb8be78771e19ae411 SHA-256: 08439729d000c0471b90ac9f39f2ea8c2e8af6ed68398371b54a3f469ff90192
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a URL associated with phishing content, disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to lead the user to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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://trafficel.ru/aws?utm_term=mrityunjay+kadambari+in+marathi+pdf PDF link annotation
    • https://cdn.sqhk.co/zuzudumijamo/jehhhCz/12289325718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481684/normal_5fbba033dc2ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383798/normal_5feccbf8af3f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452381/normal_5ff639500e88c.pdfIn PDF document text
    • https://site-1177991.mozfiles.com/files/1177991/playground_measurement_worksheet.pdfIn PDF document text
    • https://site-1180330.mozfiles.com/files/1180330/autodesk_bim_360_tutorial.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386361/normal_5f94faaa809b3.pdfIn PDF document text
    • https://site-1174464.mozfiles.com/files/1174464/verydice_game_codes.pdfIn PDF document text
    • https://cdn.sqhk.co/zodenizekija/3pt0MlH/marinette_ladybug_and_cat_noir_coloring_pages.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411919/normal_5ff1b2328336e.pdfIn PDF document text
    • https://site-1177303.mozfiles.com/files/1177303/brent_oil_price_live_today.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluniziwav/Xhf2iiq/lab_escape_game.pdfIn PDF document text
    • https://cdn.sqhk.co/sebixodof/gLK8Djj/youtube_subscriber_count_live_smtown.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/wulagisi/livre_anglais_franais.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/summit_county_sheriff_ccw_permit.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/chauffeur_uniform_shop_sydney.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/12903720604.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/hire_purchase_agreement_template.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/77365157092.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/form_pan_card_application.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/sail_awolnation_sheet_music_piano_free.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F3E 5112 bytes
SHA-256: dfd74d5bbe945286396ea490c6a8a889d94476b170e8a2113039be2bf64cd2c6
font_01_sfnt_off00015071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15071 16764 bytes
SHA-256: 99f7f33fb879964640c80d10ef50fdadd92b96b3758f016685e886ec04115662
font_02_sfnt_off000183aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x183AA 16288 bytes
SHA-256: 286af5df4af9573b1d58ed2eb05259e8ff1917b965adac5db697f41fba370491
font_03_sfnt_off00019919.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19919 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
font_04_sfnt_off0001a71a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A71A 12960 bytes
SHA-256: eef474489286afef1532a38305bd6fe24978b4ac1454e175c3538e2c63412bb4