Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac4a49dd66e9b22b…

MALICIOUS

PDF

83.4 KB Created: 2021-03-24 19:59:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae7ba44b7ef41b066cf5518dde2ac20c SHA-1: 441659ae74adc3021b6add1397608f3f29e8c2ad SHA-256: ac4a49dd66e9b22bb29884ee74ed5599e7064eac0d02706f6f8aa64d2defc354
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of external URIs and the document's deceptive title suggest it's part of a phishing campaign, likely delivered as a spearphishing attachment.

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://bologen.ru/award?keyword=laporan+praktikum+bryophyta+pdf
    • https://xefegirabiveg.weebly.com/uploads/1/3/0/9/130969499/3580cd02db8.pdf
    • https://cdn.sqhk.co/baluwofuk/ggPYggw/snows_bbq_lexington_texas_tootsie.pdf
    • https://cdn.sqhk.co/jesupasuzoku/fijfXqW/air_force_pilot_salary_chart.pdf
    • http://dokozem.iblogger.org/kazisixadewekoxusunomida.pdf
    • http://gogemupiru.22web.org/bedilifefuwug.pdf
    • https://xowimigijik.weebly.com/uploads/1/3/1/6/131637135/biwatobub-jebipebuga-zitujekevakoluw-nefirebimari.pdf
    • https://cdn.sqhk.co/bafebolabefo/cihKhiA/zowefakevuvorudikepipuv.pdf
    • https://laguwiba.weebly.com/uploads/1/3/4/7/134719839/fokabunijiwuxiweni.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/kozibowisenatu/nil_avni_photos.pdf
    • http://jududupozibuj.rf.gd/fovinunakopuwowedugumise.pdf
    • https://s3.amazonaws.com/wemazun/black_desert_mobile_guide_class.pdf
    • https://s3.amazonaws.com/jukezeluf/vrealize_automation_installation_guide.pdf
    • https://s3.amazonaws.com/daraniwekamidir/ranapopoxip.pdf
    • https://uploads.strikinglycdn.com/files/652347d0-f877-474b-8659-b8f6c5699fce/penoxixesatewod.pdf
    • https://s3.amazonaws.com/rikolesafuwofar/malie_sheet_masks_review.pdf
    • https://s3.amazonaws.com/bokelur/google_chrome_64_bit_win_10.pdf
    • https://uploads.strikinglycdn.com/files/f8250718-9aaa-4d03-ad94-84b3e75c7135/12738279006.pdf
    • https://s3.amazonaws.com/xapidajovaji/78876396511.pdf
    • http://pibuluxe.rf.gd/financial_accounting_basics_free_download.pdf
    • http://puwawujabewup.rf.gd/fivoj.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc45.bin
ab48dd2370bc211d5d9fcf2cdf1c15fac0dccc2e9019f4e343ee331c07517cc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC45 5084 bytes
font_01_sfnt_off00010d5c.bin
59a9b26c05decf9fa4b4212716b21a1a64deab9780345bb0310fcc6547138da0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5C 10204 bytes
font_02_sfnt_off00013047.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13047 4324 bytes

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