Malicious PDF — malware analysis report

Static analysis result for SHA-256 7775cc792ffd55bd…

MALICIOUS

PDF

69.8 KB Created: 2021-04-17 08:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8a1fdda469d8f6af18c3181568862f01 SHA-1: 71585fd1091a4a58721e51568e1a732f29f20003 SHA-256: 7775cc792ffd55bd78cf8e837979e9d19bee2df5bbdda680247578a9babdd0fb
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7004

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pelibifir.ru/strik?utm_term=kali+linux+installation+command+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475863/normal_603740d71402b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470040/normal_605d5d410402a.pdfIn PDF document text
    • http://mazisim.mywebcommunity.org/12259831036.pdfIn PDF document text
    • http://makamar.xyz/pibojimelifabobiruraf088w6.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/tilasora.pdfIn PDF document text
    • http://appeal-ig.com/90017491145ecufh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414352/normal_5fec67813746d.pdfIn PDF document text
    • http://begemotiks.fun/xedifozatimaviz0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377371/normal_60072cbd25d18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422180/normal_60137846341e0.pdfIn PDF document text
    • http://fastgetme.online/wake_surfing_mastercraft_prostar_190bowcp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380694/normal_6052e5dfac2f3.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/liwagawakebigujuxir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378848/normal_603cfca6171f6.pdfIn PDF document text
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d26d31b-bac6-43f1-8c68-7295e9a0f902/62168448030.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxalirudidel/87139241376.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/newubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b6b91b4-c108-4660-91df-923909a65c89/best_android_app_for_calorie_counting_indian_food.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/zip_file_extractor_for_windows_8.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/nolububirusetijigog.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/kupakividutajijowatoguw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d53b5f83-fdaa-45f5-8f67-12eee9820732/lajawu.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E8 5124 bytes
SHA-256: f5e9199412f2a94198a1314f67d64ad456e869483ee0a10b1dde658180d5481b

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