Malicious PDF — malware analysis report

Static analysis result for SHA-256 e11bdccb09351f3c…

MALICIOUS

PDF

78.3 KB Created: 2021-03-14 20:15:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4b682e4e8d26ef3d6ae80b2524c0b715 SHA-1: da8f5efde5e7eb34c0303761b79be6d58803bc25 SHA-256: e11bdccb09351f3ca033d78946a0a976e630e3be4bbe7c414bd5d4d3ddce10bf
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 0.9998

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://mezovuduw.ru/wix?keyword=act+website+scavenger+hunt+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366623/normal_5ff15ac0d7440.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450907/normal_5fcb4039d1aa0.pdfIn PDF document text
    • https://cdn.sqhk.co/virurewev/4LjgXjh/51317194677.pdfIn PDF document text
    • http://dfds.in/kujuxizivugowilavjz7yw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482863/normal_5fefceeda4291.pdfIn PDF document text
    • http://baugroup.info/what_can_a_vegetarian_eat_on_a_ketogenic_dietmwm1v.pdfIn PDF document text
    • https://cdn.sqhk.co/wifuponi/Z4id08w/kapimor.pdfIn PDF document text
    • http://helpverifybadges.com/5338441473v0z5s.pdfIn PDF document text
    • https://cdn.sqhk.co/tiviluluje/d6jh62F/57248965714.pdfIn PDF document text
    • https://cdn.sqhk.co/sudizatase/cha6ujc/52374413395.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365639/normal_5fefb766a36b6.pdfIn PDF document text
    • http://skidki-day.site/the_man_in_the_high_castle_tv_series_cast447nj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b9eb3541-094c-4606-b101-17c2291fd6e1.filesusr.com/ugd/a18601_2e2e052edf0d498a980d2d56eaf6b190.pdf?index=trueIn PDF document text
    • https://923a8ca3-316b-4844-b38f-9bc955ad4852.filesusr.com/ugd/312e0e_1957d0670744432eadaff5bf3d035623.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/079253bd-6bc3-4aba-8f6a-cfd0b62a672f/59559638504.pdfIn PDF document text
    • https://cc0b58a5-7bf4-4b41-9cd7-d9bc0cd2cc6f.filesusr.com/ugd/6dc98b_17c9f51947c8430f9db23069d931a61e.pdf?index=trueIn PDF document text
    • https://b91da389-de5e-4eda-9c11-73399619626a.filesusr.com/ugd/c34eac_ed6184070cce4f7585f567cba4c9644b.pdf?index=trueIn PDF document text
    • https://bd04a250-715b-4db0-8087-55ec2f714cf5.filesusr.com/ugd/0c2191_d776b14d5f73463c8939d5729a0b64ba.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c0ede9c-bb01-40ac-9212-cf1670be3640/25611205681.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_off0000f1a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A5 5308 bytes
SHA-256: 9e642a7d36c8867750e3ce45d050b3e98b680015fb99853ee1c9d4d0aa58ea7b
font_01_sfnt_off000103cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103CB 11804 bytes
SHA-256: 1ed67432f5d54ee5709658465c955b543730b636499db904f1b9ca50bb4ed230

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