Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ec15aea2a5383d7…

MALICIOUS

PDF

86.8 KB Created: 2021-02-26 02:03:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: c47fc1011bf931345f3a36516ea6f710 SHA-1: 09847995136988083ac3880513c1114a4ac6d63b SHA-256: 8ec15aea2a5383d7d1deca69348f1d87db70f9b34d94914139a30389e2152f87
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains an embedded URL that directs users to a suspicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jottigo.ru/wix?keyword=advantages+of+google+docs PDF link annotation
    • https://cdn.sqhk.co/vagekoxes/djjidtR/vutoxazulozewegutizol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471971/normal_600bd4f00dc01.pdfIn PDF document text
    • https://cdn.sqhk.co/giruzegovu/chc2ibC/41526921546.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480594/normal_602d774744cd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428069/normal_5feb300292aec.pdfIn PDF document text
    • https://cdn.sqhk.co/siganewita/hqFnOZK/xomekutit.pdfIn PDF document text
    • https://cdn.sqhk.co/nigalasiline/iV3SCm1/game_grumps_house_party_tv_tropes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409425/normal_5fd3d5646fd28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501028/normal_6009efcc50764.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5fc6db2be7513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382782/normal_603828d3bc209.pdfIn PDF document text
    • https://cdn.sqhk.co/bebumula/gZifjeY/retro_ski_wear_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/jaxISjj/82544056781.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391302/normal_5ff980d413d51.pdfIn PDF document text
    • https://cdn.sqhk.co/manigonodapu/bLr5sjQ/55346566895.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503584/normal_600194d48dbe9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381534/normal_5fcca43a6c8ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406497/normal_5ffbb17577639.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373509/normal_5ff68fb74b841.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486548/normal_5fc7538d783de.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://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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5FF 4880 bytes
SHA-256: 2d700d94780733a8fb66c050e48055a28a622b37ce14edab86b00fd9afd4da1d
font_01_sfnt_off000106b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B7 10196 bytes
SHA-256: 4c2a0eca8b41547096df087005598288c6d8aaf8ac7d66d71437895981ada619
font_02_sfnt_off000129d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129D1 16388 bytes
SHA-256: 792d94d721ed0b6f37dc0a2c63227a1e02ba985f3311c734d905b891e1ee35e8
font_03_sfnt_off00013f5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F5D 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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