Malicious PDF — malware analysis report

Static analysis result for SHA-256 9767a4ff18d3edef…

MALICIOUS

PDF

77.4 KB Created: 2021-02-23 00:32:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: bb94c8ddc52a059c9121aee65838c8fa SHA-1: b46669fdbf58e3b167a284a855226ba1376903dd SHA-256: 9767a4ff18d3edefa4b58969f48c43dd3bb7db473f7cdcd838a5ae8708796456
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL disguised as a lure for information on military combat. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The PDF_URI heuristic points to the specific URL used in the lure, which is likely the initial point of contact for a phishing or malware delivery attempt.

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://jacksth.ru/123?utm_term=how+to+learn+military+hand+to+hand+combat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495241/normal_601732e411f50.pdfIn PDF document text
    • https://cdn.sqhk.co/rilixuzewiv/XacsTN1/daft_punk_get_lucky_chords_original.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4504788/normal_5ffd159b9a778.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/XiiSNhc/9241614290.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530910/normal_602f9b621b4ab.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvurero/hjeifWz/jejatojuvunokemeput.pdfIn PDF document text
    • http://cmb-eco.com/kugekarofawa37k.pdfIn PDF document text
    • http://trysoda.pro/republic_of_doyle_season_3_episode_13t0v3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426701/normal_5ff86cef4438a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485014/normal_60110b3e9734f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445742/normal_5fd1aa4fd0559.pdfIn PDF document text
    • https://cdn.sqhk.co/fodibaniwe/29haKjb/tatijobonoposixa.pdfIn PDF document text
    • http://rubka.space/50905399321ptmmo.pdfIn PDF document text
    • http://rent-nout.site/nuts_and_bolts_store_hovelwj3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457849/normal_5fe3516f55cc4.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/davawina/90044184903.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/26134573186.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/bleacher_report_aaf_football_live.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/royal_bengal_tiger_picture.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/6007747431.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_off0000f1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AE 5296 bytes
SHA-256: 46d519e229499891512060f4eee4bda0429dbbc569f4ee37fbc8a45958416a56
font_01_sfnt_off00010397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10397 10640 bytes
SHA-256: c3ddc55e228ea028481f85dad820ced1a44aa07cd759c0fd2fcb0708ee9e5355

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