Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab0277b8de5ca282…

MALICIOUS

PDF

80.1 KB Created: 2021-03-31 14:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: c6f08208bb325894745570bc63d834e5 SHA-1: b2b5ec351f7b2442ad2e8962bc99615440ee815d SHA-256: ab0277b8de5ca282bc12583ef0f28c5c1107491deab4b0ceabcd4493ff0ae768
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 0.9993

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://baarspo.ru/award?keyword=comment+fusionner+plusieurs+pdf PDF link annotation
    • https://cdn.sqhk.co/lisupixiwe/26je2AD/harvard_business_review_articles_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wobivada/OVbjjwz/47108032739.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425533/normal_5fce409eee074.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495400/normal_605f9353b5b43.pdfIn PDF document text
    • https://cdn.sqhk.co/xupebasolaw/hghH1hd/access_to_congressionally_mandated_reports_act.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446390/normal_5fffc476de458.pdfIn PDF document text
    • https://lodavoxi.weebly.com/uploads/1/3/4/5/134505118/nugulidekemarid.pdfIn PDF document text
    • https://babosaka.weebly.com/uploads/1/3/1/3/131379498/lelinanir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480753/normal_602656476213f.pdfIn PDF document text
    • https://negogesi.weebly.com/uploads/1/3/0/7/130739616/joxisev_bopolexag.pdfIn PDF document text
    • https://jafakatulo.weebly.com/uploads/1/3/4/3/134353771/f56a491e82.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fovezewi/74722803236.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/71455733658.pdfIn PDF document text
    • https://f733e552-90a1-4d1f-83ca-a6b36afcf31c.filesusr.com/ugd/38bf1f_6e8142cd00e1451ebcd3bb869960202f.pdf?index=trueIn PDF document text
    • https://ac734925-007a-49fa-9a6b-2340142042ec.filesusr.com/ugd/ea78e0_85364faab8c44ff4bddc4f66de65ed88.pdf?index=trueIn PDF document text
    • http://nixetatop.epizy.com/foundations_of_algorithms_5th_edition_solution_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/how_to_use_rowenta_hand_steamer.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/brother_lawrence_prayer.pdfIn PDF document text
    • https://6dca1d0c-b102-4aa4-a312-d013f97c39dd.filesusr.com/ugd/fb87fb_608647da225a45aca200d9e5fef8d86f.pdf?index=trueIn PDF document text
    • http://nizalag.rf.gd/tamil_hd_movies_app.pdfIn PDF document text
    • https://1423d76f-a56f-4481-bf87-726e17039346.filesusr.com/ugd/14aee2_da079e01865a47a2b0f910e7070ea544.pdf?index=trueIn PDF document text
    • http://ziwitiko.epizy.com/luxalutiguwarunibewedeku.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/how_to_read_first_aid_step_1.pdfIn PDF document text
    • http://gelutusuxipedib.rf.gd/dajugafefiwaxefoni.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_off0000fb91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB91 4884 bytes
SHA-256: 3bfb7d7c37f923a3c47f959e471e38312d48ff4b9b33d2d52f6d5fcd96d2756a
font_01_sfnt_off00010c15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C15 11848 bytes
SHA-256: 2081c00d03b9d8e0c50df30573f5e344c0c9c46dbf80863e62ea063fc7ae4527

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