Malicious PDF — malware analysis report

Static analysis result for SHA-256 94775e809a7d909c…

MALICIOUS

PDF

101.7 KB Created: 2021-06-06 08:59:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b9079f7de93b8ab065beda37d31e1a99 SHA-1: dcc391a29c99de9c1a77088028339bf0e6c56a96 SHA-256: 94775e809a7d909c34be9099064c6ce56742e0c5d99ff120189e1c0280a6c5a5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/123?utm_term=adskip+apk+uptodown PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414866/normal_6021074657a0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479718/normal_5fd31b9736f09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386842/normal_6026affb59466.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370762/normal_6033a708684ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382414/normal_603ea03c85247.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492259/normal_5ffaa64a7e03d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lulatigono.pbworks.com/f/74768380195.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d0d7130-f95e-421a-b757-f7d791c19a30/how_to_connect_deskjet_3050_to_wifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1cdb8ee-e710-483b-9fa2-09c35453219c/how_to_pair_jbl_flip_4_with_iphone_6.pdfIn PDF document text
    • http://kedefoviraj.pbworks.com/f/number_the_stars_chapter_1_and_2_questions.pdfIn PDF document text
    • http://kipizasuzeda.pbworks.com/w/file/fetch/144691779/27636056403.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11a7228e-ba34-406f-9a9e-156a0a4f3301/tiripalofetadoritugadoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af3b150-bf12-47f0-abbb-e01ec2d22add/wakepuweweduninoburuto.pdfIn PDF document text
    • http://puzavofan.pbworks.com/f/tavimumipelape.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/548bdc88-b20b-4a2d-bda6-ef4b33107fea/pelujegexoxoginexoruf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c45b6d52-0113-4fa5-ae3b-0aacbffb6609/41770374775.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba4401ce-1a12-45ee-b0d6-7fc5c8136ebc/how_to_pair_mdr-zx770bn.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012849.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12849 12312 bytes
SHA-256: a1ac34f59120006689437dbb89b7cdf28c5575c3ae6aee698f2c64709a987425
font_01_sfnt_off00014e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E68 4972 bytes
SHA-256: 90d5425a10fb365f862bb8751426016de628e52f1b3d14cb319f36aaabab6cab
font_02_sfnt_off00015f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F7A 12292 bytes
SHA-256: 632c398fda4797bfd8464a0a16b771f625220664647ea2abf9e64a05070069d1

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