Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfcc01ccc2224041…

MALICIOUS

PDF

70.7 KB Created: 2021-06-22 20:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6430fccc6e7e134786e06d276ce2493 SHA-1: 924d61eb06016e09eef8b9882061f8c0a1c133e8 SHA-256: cfcc01ccc2224041b9ce8a146a896ec8f4fc3d015085f89d9a8965109e69e784
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to obscure the ultimate destination. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8925

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
  • 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 http://cuatro-pr.org/sites/default/files/file/sifimawenabad.pdf
    • http://alpanelektrik.com/depo/sayfaresim/file/vofuzobovakepowedesotupo.pdf
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/gcre4l848gs781oc43ijee59rr/jerogajamutiguralotagitax.pdf
    • http://dtcguild.org/clients/80367/File/lutabezexegamozav.pdf
    • http://pechati-piter.ru/userfiles/file/bodiraxat.pdf
    • https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/e3171bc6ebb9e689f85abe36eed894be/57167481471.pdf
    • https://bmw-zona.ru/uploads/file/27938125697.pdf
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/osvlnhgd5dslflsohvuf2dsjl1/raxazazibole.pdf
    • http://travellightnepal.com/userfiles/file/jibefit.pdf
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a696e14e051---jemamadinovamotopufiropun.pdf
    • http://kawoka.com/userfiles/file/62215187758.pdf
    • https://aucordechasse.fr/vosImages/tukufipodezimetaluzimaxet.pdf
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0bd808a045---87362527675.pdf
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d5debac2a---55645597610.pdf
    • https://swift-tw.com/lcc/upload/files/45483775990.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=floodplain+development+manual
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b3f.bin
100d391d9928e35d5a5abece6445023e2c479cb0e7dd9f405e103d88798b429d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B3F 4848 bytes

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