Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ebea225d8d0c25…

MALICIOUS

PDF

69.7 KB Created: 2021-02-12 02:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: d189542b16868daf4655440a3940bf19 SHA-1: 234a12b9e711d724bc951b8f5abdd132c8c64758 SHA-256: d1ebea225d8d0c258e5812129a9a1d3e780e33ee753ad8879612ad3006541971
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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
  • 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/wix?keyword=maximus+body+book+pdf+free+download PDF link annotation
    • https://zumaboletafu.weebly.com/uploads/1/3/1/4/131454272/noxirogu.pdfIn PDF document text
    • http://dojegegitotebe.22web.org/homeworks_qs_wiring_and_power_guidelines.pdfIn PDF document text
    • http://piredvizhnik.com/renasijikapanibetelapep6ci5.pdfIn PDF document text
    • http://toguvuveleguna.22web.org/31456223552.pdfIn PDF document text
    • https://rasazumeg.weebly.com/uploads/1/3/1/4/131454762/dezutewidafexojeret.pdfIn PDF document text
    • http://wopebexe.66ghz.com/10508825477.pdfIn PDF document text
    • https://veguxalefimas.weebly.com/uploads/1/3/1/3/131382166/saguna.pdfIn PDF document text
    • http://babbieshop.ru/pogatik5y0xy.pdfIn PDF document text
    • https://luzulobopado.weebly.com/uploads/1/3/2/6/132681737/todop-luzizor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kesajuwigiferu.epizy.com/geological_time_scale_formation_of_earth.pdfIn PDF document text
    • http://rokopive.epizy.com/lajutiviwufafizuguwojamu.pdfIn PDF document text
    • http://mofagadelebedos.rf.gd/pifan.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/79300707527.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/hotspot_wifi_android.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/gawefebonurawajo.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_off0000d2f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F9 5656 bytes
SHA-256: 9ffafcde5545333765c2b0071a3a46ed6f5f3c547f62e120c3d6e13c2732e19e
font_01_sfnt_off0000e652.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE652 10396 bytes
SHA-256: 38edcc1fd463b998bd0e90f0b9100930bb77715c5c2b81dea4f2b91aa59e238d