Malicious PDF — malware analysis report

Static analysis result for SHA-256 a741659700a4a0b5…

MALICIOUS

PDF

81.0 KB Created: 2021-03-16 08:45:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 40ad612399d9061843f15daa7689d048 SHA-1: 37c321c566500c2b133eaeb3a52395289f35c3b6 SHA-256: a741659700a4a0b5bc133b2017be75b0f0ff71369e477b64563a7dd6cb79b109
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 0.9995

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://maypoin.ru/wix?keyword=kitchen+cabinets+jackson+ohio PDF link annotation
    • https://cdn.sqhk.co/jojikoxazew/aZgdNjb/momobidizibomize.pdfIn PDF document text
    • https://cdn.sqhk.co/xenivoronizu/gkkjjcO/tifip.pdfIn PDF document text
    • https://cdn.sqhk.co/mitebosareki/PicjjqH/bavemorolugevanajuledobu.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
    • https://uploads.strikinglycdn.com/files/55091b61-0af9-48e6-afa2-f46a2d7a263a/76832285176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36322e3e-e198-4d75-bc7f-412bcc667b9c/tubotasag.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/dunozutijubetukipa.pdfIn PDF document text
    • http://fanalejowegop.atwebpages.com/discover_english_1_test_book_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f66efe27-8af8-4daa-b144-034540b0b2cb/88032836806.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/xafuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc73dac0-476c-424a-9517-0dd71c4a783e/tovuwuxil.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/39775840299.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/wumutiro.pdfIn PDF document text
    • https://s3.amazonaws.com/furunumaroxun/vuriwawuvuvefon.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/puzugakevipitomufew.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/math_worksheets_for_6th_graders_free_printable.pdfIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/mirami.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/consumer_reports_dishwasher_reviews_2018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d95049b8-9621-4f1c-9122-af7c145d1a13/what_is_prayer_beads.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/vazudibin.pdfIn PDF document text
    • http://rugoxesoteko.myartsonline.com/pengertian_marasmus.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/answers_in_genesis_women_s_conference_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/pegosazus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF496 4796 bytes
SHA-256: cba18639f71bef56d0f4e1c3b7b5cc4d2b39cffb03b77930ed76b1e83d44aea8
font_01_sfnt_off000104cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104CF 10500 bytes
SHA-256: 12bf1fb0bb671f2e35a34796ea7c65e5a7e9fbe2c65107f0342d8a7d13f37214
font_02_sfnt_off00012889.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12889 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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