Malicious PDF — malware analysis report

Static analysis result for SHA-256 37eef6031817bdf4…

MALICIOUS

PDF

101.1 KB Created: 2021-02-26 01:15:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 06d5cfc664f1b21f831a3c37ca48d5b8 SHA-1: 8333751eb990359254e30e18947de645cac933da SHA-256: 37eef6031817bdf47dd2aae4743480bb6cbe32a10a8891dfb897cce05b7877f0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially garbled, references 'Impractical Jokers' to entice clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=impractical+jokers+online+free+season+3 PDF link annotation
    • http://trysoda.pro/antigua_and_barbuda_citizenship_formkmt1j.pdfIn PDF document text
    • http://idealica-italiaufficiale.site/jofurejafomadeletugijil3ret.pdfIn PDF document text
    • http://gulebamabixaku.22web.org/shayari_video_karna_hai.pdfIn PDF document text
    • http://vitrinachel.ru/37642585337dk952.pdfIn PDF document text
    • http://samettemiz.xyz/rodofopilekesijanaxosj2upu.pdfIn PDF document text
    • http://supportcopyright.net/everyones_an_author_with_readings_3rd_edition_ebook4f5u6.pdfIn PDF document text
    • http://adminhalil.com/33792959973msqc3.pdfIn PDF document text
    • http://instup.xyz/free_tv_guide_app_for_iphoneuglsv.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/sitozi/financial_reporting_manager_resume.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/sales_rep_contract_agreement_template.pdfIn PDF document text
    • http://kedekivotizera.epizy.com/blank_handwriting_worksheets_name.pdfIn PDF document text
    • http://vokuloramemi.epizy.com/how_to_connect_samsung_hw-h450.pdfIn PDF document text
    • http://segelomo.epizy.com/33287592056.pdfIn PDF document text
    • http://jenenulufem.rf.gd/kibofenixumuvimizerezovon.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/vabapinotekipodokixefijox.pdfIn PDF document text
    • https://s3.amazonaws.com/leributafa/28994216304.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/86308922783.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/past_form_and_past_participle_of_go.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10087 6588 bytes
SHA-256: c6acebe3750ab55c09714fa1b34f6c70ddae3ce202e1a088ffcbc34adab53285
font_01_sfnt_off000110d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110D0 4020 bytes
SHA-256: 0b249eceac37609d6ca0999fb2c405adc927a36fdc72c45dea472661795e7e20
font_02_sfnt_off00011f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F3F 5400 bytes
SHA-256: 72fc1327e3edb4b18e03c054ba0bae2256fb10d4f6d2d599b8dc44d6fbd63c44
font_03_sfnt_off00013186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13186 2456 bytes
SHA-256: 0f0e69e6951976fb8acf9f50a12661e2397bff8ba011a2c5aca9493d39540d71
font_04_sfnt_off00013c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C81 14884 bytes
SHA-256: c7f0ac11fd9364bcf6f28d9cee0a2f20002e87689c5e0367658ee528d6656b10
font_05_sfnt_off00016acb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16ACB 17700 bytes
SHA-256: a358e5644a3b02af37f3f867bfe8f680b635dfe52b8df0021e83b43a219c9d8d

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