Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee507c126fd82368…

MALICIOUS

PDF

74.6 KB Created: 2021-06-07 21:00:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: eb16e70011a3caf9951b188e14950918 SHA-1: 8e46d7a84a676159126204ea39c63edd489e0651 SHA-256: ee507c126fd823685b423aea998ccda938b7017195f0100ec4efc7d5659326cd
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, with a specific heuristic identifying it as a PDF link farm. The primary URL, https://huntic.ru/pbw?utm_term=how+much+do+ships+cost+in+star+citizen, suggests a potential phishing or SEO manipulation lure. While no scripts were explicitly extracted, the PDF structure and the presence of external links are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://huntic.ru/pbw?utm_term=how+much+do+ships+cost+in+star+citizen PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384150/normal_606e605199d1e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493888/normal_5fffb01918126.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472206/normal_6039ffb9cc051.pdfIn PDF document text
    • https://xasigevas.weebly.com/uploads/1/3/4/5/134595911/7683226.pdfIn PDF document text
    • https://vozutububedem.weebly.com/uploads/1/3/4/3/134372478/paxisitufepox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479470/normal_60004273a1d2a.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4415770/normal_60b66756934f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408002/normal_5feb46f82304f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448332/normal_5ff160986dc90.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393883/normal_5fe4fe940e490.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449793/normal_602694f19f812.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475728/normal_5fe597f2263b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499283/normal_603fd8d278bf8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419413/normal_6027cc60370a2.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4426261/normal_60b2802bd9ae2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387706/normal_6000c3f797b5e.pdfIn PDF document text
    • https://rinixupikexem.weebly.com/uploads/1/3/4/0/134096042/397962.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489853/normal_5fe427219be56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373509/normal_60215f2f2a233.pdfIn PDF document text
    • https://sekilulijafos.weebly.com/uploads/1/3/1/4/131438177/kanukewogakesav.pdfIn PDF document text
    • https://galesarenad.weebly.com/uploads/1/3/4/3/134380117/zivubagifebovo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387241/normal_5fe0fe5a60e73.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujefapufefi.pbworks.com/f/how_to_use_adobe_captivate.pdfIn PDF document text
    • http://sutodoromar.pbworks.com/f/tikoxepupid.pdfIn PDF document text
    • http://lokuwulixit.pbworks.com/w/file/fetch/144717621/ridedoniwinuvug.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_off0000e4e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4E5 5384 bytes
SHA-256: 217172444b377e2605204d259184664bdb80105135c1b93cfc911017b0ed41fe
font_01_sfnt_off0000f719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF719 11104 bytes
SHA-256: 1d8b59b3d194d8b8ea86681d3ae44e72624fbeef84b2b2a6fc6e792d6540b94d

Open this report in the interactive analyzer, or submit your own file for analysis.