Malicious PDF — malware analysis report

Static analysis result for SHA-256 2edaf9f4ccbbf1fe…

MALICIOUS

PDF

66.3 KB Created: 2021-09-23 07:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: fa75c16b9b3d073290581169ffd0d8bd SHA-1: 213dfa4cc91735d0539b02e1e04b3baecfaad645 SHA-256: 2edaf9f4ccbbf1fe4a4dd33c24345b35cd44152bc2af2e7fe1a0115ad888f785
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous external URIs and links to potentially compromised websites, indicating an attempt to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of multiple PDF-specific heuristics points to a malicious document designed to exploit users through external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7568

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • 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://crysiq.ru/uplcv?utm_term=android+to+iphone+share PDF link annotation
    • http://frigotechreina.com/userfiles/files/37427130611.pdfIn PDF document text
    • http://corising.info/sa_upload/userfiles/file/20210904021336.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/66483692189.pdfIn PDF document text
    • https://ww150003.linebot.net/upfile/files/20210909152754.pdfIn PDF document text
    • http://myphamasia.net/upload/files/femomixuxuzarofitodit.pdfIn PDF document text
    • http://studioboscono.it/userfiles/files/polumuzagedufi.pdfIn PDF document text
    • http://dent-pro.cz/pic/file/39934902402.pdfIn PDF document text
    • https://digireg.pl/upload/32146735990.pdfIn PDF document text
    • http://sunwisechem.com/Uploadfiles/files/10474562321.pdfIn PDF document text
    • https://ropaalmayoreo.com/images/userfiles/file/movukokudatelolajerog.pdfIn PDF document text
    • http://modernplating.com/userfiles/file/80348753235.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/15h22ejtsep9c8eupn568sqjma/74116524682.pdfIn PDF document text
    • http://140.121.125.49/ckfinder/userfiles/files/20210909_105152.pdfPDF link annotation
    • http://sicilyontable.it/userfiles/files/30288415250.pdfIn PDF document text
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b7f13b840---50384439297.pdfIn PDF document text
    • http://cluboutletmoto.net/campannas/file/578442275.pdfIn PDF document text
    • http://kukdae.com/files/fckeditor/file/2194465427.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/vp51sqssibdn0ouk9tr5ofbihl/wibejopawidaratetibazixu.pdfIn PDF document text
    • http://sspvjd.com/FileData/ckfinder/files/20210913_4E0C251B39E6CB33.pdfIn PDF document text
    • http://www.peretprod.ro/content-images/file/89828906695.pdfIn PDF document text
    • http://mstreatmentadvances.com/userfiles/files/fuxepinabanawiwolako.pdfIn 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_off0000b475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB475 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cc87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC87 16452 bytes
SHA-256: f05b20328b182944502ccbda305a97d995edf4b0501b4f27f6298f568d1a2358
font_02_sfnt_off0000f66c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF66C 10424 bytes
SHA-256: b365a7bf861e0b35f13822034a1336555493141451c9a104f544a2e71f171715

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