Malicious PDF — malware analysis report

Static analysis result for SHA-256 34b168e61c156744…

MALICIOUS

PDF

92.4 KB Created: 2021-07-25 15:41:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 12e6d0c84b95c5b73cba44c7e968e84b SHA-1: 476c09efc2129ed5d4356ee548a3dd6f67107c1f SHA-256: 34b168e61c156744d5e2d5e63293f075049e876819e0eb175b48d89364c95aa5
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Harvest Credentials

This PDF file was flagged by multiple heuristics, including ML classifiers and ClamAV, as malicious. The 'SE_MFA_LURE' heuristic indicates it's designed to harvest credentials or abuse multi-factor authentication. The embedded URLs point to various domains, many of which appear to be compromised or disposable hosting, suggesting a phishing or credential harvesting campaign. No scripts were extracted, but the document structure and URL patterns are consistent with phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://absoluteanytime.com/media_file/files/files/19675647392.pdf In PDF document text
    • http://abwplazaview.com/uploads/files/fenadil.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/jowebiresanowug.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8278cdfd6b---73211555550.pdfIn PDF document text
    • http://flagrant-desir.com/userfiles/file/83897684158.pdfIn PDF document text
    • http://mirrorgallery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607632168af35---70968851338.pdfIn PDF document text
    • http://www.agot.pl/upload/file/rizizajazidebijajegem.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d9fe0bba82e---surutisil.pdfIn PDF document text
    • http://rzn-house.ru/upload/file/30189859602.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d08881222b9919efbaf4f86710c6fa5f/47044754616.pdfIn PDF document text
    • https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/rpmbdf01745dsa3fukco747ga1/13733244823.pdfIn PDF document text
    • http://moneymaker-gold.de/files/11131359755.pdfIn PDF document text
    • https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/4a383b1b41f4161e86ce53245d4caa42/zogudajotuk.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/de35cd75ad8d045cacd23fcc096ee782/27451210550.pdfIn PDF document text
    • http://rszm88.com/upfolder/e/files/20210605010324.pdfIn PDF document text
    • https://lifo-sea.com/ckfinder/userfiles/files/dogifefawinoseseleroboj.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b259a2f2942---kimewo.pdfIn PDF document text
    • http://dchs1961.com/clients/871949/File/rezexarajoporukekove.pdfIn PDF document text
    • https://takipbizde.com/calisma2/files/uploads/bipafameruwemirapopi.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/bec03505c0db87d499511e98462b7079/kijikezididi.pdfIn PDF document text
    • http://watthaistuttgart.de/userfiles/file/sifagumitutenarip.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e1ad04fa2e5b5f618dc02347395dfa2a/gipaxezebijatopuvubit.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f3f43e525d6---bimavatikurufetisuret.pdfIn PDF document text
    • https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa911ee06cd---pojamirurafigakof.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/71163496513.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=is+there+gonna+be+a+maze+runner+4+moviePDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000103bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103BB 10904 bytes
SHA-256: 892682dcc9a93d1708a0a60f3b48dac875e841a43bd33d0cc3b9f7257cb3feca
font_01_sfnt_off00011ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE7 17524 bytes
SHA-256: 89b9029d1aa7e8448b679dd577b175089803348f7792adfc86b9833993f57130
font_02_sfnt_off00014aaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AAA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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