Malicious PDF — malware analysis report

Static analysis result for SHA-256 deae211451669094…

MALICIOUS

PDF

77.3 KB Created: 2021-03-16 07:09:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 5e857f32ef680d9e3c3e069927f3514e SHA-1: f5ced440a7946ca1f11eebff7ee7b6ed101303fc SHA-256: deae2114516690946eec488c85c0482ba174c75f60172ff420bd29a6145900df
96 Risk Score

Malware Insights

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

The PDF file contains a malicious URL embedded within its content, disguised as a search result for 'How many carbs in a wendy's single'. This URL, 'https://jumiwimov.ru/strik?utm_term=how+many+carbs+in+a+wendy%2527s+single', is likely intended to lead the user to a phishing or malware distribution site. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing lure delivered as a PDF attachment.

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://jumiwimov.ru/strik?utm_term=how+many+carbs+in+a+wendy%2527s+single PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446015/normal_5fe469c3498ad.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/82502778946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417314/normal_600adc2c01a1d.pdfIn PDF document text
    • http://zekabivalejasaj.22web.org/avengers_font_style_photoshop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421970/normal_602a84b01358c.pdfIn PDF document text
    • http://muzotom.22web.org/38808900971.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tupudenijusab.rf.gd/mastering_environmental_science_chapter_4_answers.pdfIn PDF document text
    • http://wenares.myartsonline.com/81306660957.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/infinix_note_5_x604_price_in_kenya.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a3ecdc8-3114-4f9a-b0c6-703e165710cd/xevuvumikaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/34316614755.pdfIn PDF document text
    • https://278d3eb0-aa6e-4faa-826d-cdbdc5132fb7.filesusr.com/ugd/c34eac_066b8eca29ed45b6903ae7a612ac487a.pdf?index=trueIn PDF document text
    • http://lazavosapazogil.epizy.com/93674538716.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/6487637573.pdfIn PDF document text
    • http://pegovijodup.epizy.com/39842127999.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/ffxiv_blacksmith_power_leveling_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4fe7026-809a-40ae-81f9-5beb0ef0a8da/is_firehouse_subs_gluten_free.pdfIn PDF document text
    • https://8c4778c4-ed17-4cf1-86f9-5448e21c5c15.filesusr.com/ugd/6da380_74eaae50ad8e4b47add35f354ed253ef.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/817279bc-b696-44e5-9a99-1fb77d5b255e/planet_fitness_customer_care_contact_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65c74d07-62c5-4633-b457-2d46f5d9e9b2/does_dunkin_have_vanilla_iced_coffee.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/xifanij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d32dc6b-d06f-496f-83bd-93cef9c358de/gerenugufegexejavales.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_off0000ef60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF60 5588 bytes
SHA-256: 6f147784b3609f49946c5f3debb9005222e901de4495b2c7c32da476ad515ac0
font_01_sfnt_off00010260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10260 11132 bytes
SHA-256: 161be662b4842b6c77840e416a26d16bab4c0f9829c317ba0c1b203a18e65893

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