Malicious PDF — malware analysis report

Static analysis result for SHA-256 aef875e408092c26…

MALICIOUS

PDF

79.2 KB Created: 2021-03-21 00:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 63917a04a865f3bffdf7849a486228d6 SHA-1: a6b77b1096e10e10f8a885feca2aa0ae5e4956b1 SHA-256: aef875e408092c264f95f643ed93ae38b0f730ef8ec1419df6d805fdbe951728
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains multiple embedded URLs, with a primary focus on 'https://botokaw.ru/wix?keyword=dragon+ball+xenoverse+guide' and 'http://pubipufiwozedaw.22web.org/adobe_brand_guidelines.pdf', suggesting these are the intended destinations for the user. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and heuristic firings indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://botokaw.ru/wix?keyword=dragon+ball+xenoverse+guide PDF link annotation
    • http://pubipufiwozedaw.22web.org/adobe_brand_guidelines.pdfIn PDF document text
    • http://nevozepamuj.iblogger.org/why_is_the_suns_atmosphere_hotter_than_the_surface.pdfIn PDF document text
    • http://nonowun.mywebcommunity.org/13351844958.pdfIn PDF document text
    • http://silewugebed.scienceontheweb.net/89558256660.pdfIn PDF document text
    • http://free-at.pro/running_man_163_viuct3pj.pdfIn PDF document text
    • http://idealicaitalia-ufficiale.site/simplifying_square_roots_worksheet_doc31eqh.pdfIn PDF document text
    • http://dujegud.getenjoyment.net/13187578205.pdfIn PDF document text
    • http://fumatiw.mypressonline.com/ajahn_chah_biography.pdfIn PDF document text
    • http://interbankdigital.com/6054433416jvnub.pdfIn PDF document text
    • http://meetraisins.club/61027138241m3c2u.pdfIn PDF document text
    • http://xulodol.mygamesonline.org/muwekemonaxexofubumawik.pdfIn PDF document text
    • http://sifimomikev.sportsontheweb.net/calculus_and_its_applications_solutions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kegigija.atwebpages.com/90792675200.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/13879273123.pdfIn PDF document text
    • http://kuzemepusiloj.onlinewebshop.net/79283812494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb0fadca-f289-4118-ac9a-c95113379d01/84669806100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1542e1ea-5d62-4621-901b-81af1f01ef9b/800_words_series_1_episode_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1e7ad2a-1369-4bac-8a47-f8c300198ae2/tokyo_ghoul_re_wallpaper_1920x1080.pdfIn PDF document text
    • http://puvidideja.rf.gd/26362347001.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/254581827.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/58609320771.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/83236098933.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/48233207785.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/marta_bus_map_atlanta.pdfIn PDF document text
    • http://xijejuvi.myartsonline.com/togese.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1acae618-a762-4f98-8f41-0811fd320c4c/88420704298.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_off0000f3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D0 5260 bytes
SHA-256: 2859cdd7b7c567b54ceaf2a50e0323a3208cff19ec4262304e40149053bac72d
font_01_sfnt_off000105c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C9 11740 bytes
SHA-256: 7c05db588285d73e5f25474b3fff0282b3ce99f1f300cc41906f126fabaa81bc

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