Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9d8bfe196f4fd0…

MALICIOUS

PDF

74.7 KB Created: 2021-08-23 18:47:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 203e891fbf41ba3de6c97c5d0ab3506e SHA-1: 34d07a45bf82b51749aa3c38c30dde1063f730c4 SHA-256: 0d9d8bfe196f4fd0bde89c7131111d62c801390a30de93282013c21f34e88f68
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is identified as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, and one directly to an IP address. These links are likely intended to redirect users to phishing or malware distribution sites, a common tactic for malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6686

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 http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160a01bc848810---bevovibas.pdf PDF link annotation
    • http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160fdcecdee301---purobi.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/66504544243.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16110a72099da5---20750929285.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608f41ac6272e---65384578334.pdfIn PDF document text
    • http://naasschoolofmotoring.ie/fckeditor/userfiles/file/92182607603.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16071c27737afd---dinorovexexenakexen.pdfIn PDF document text
    • http://elisa5888.com/shopadmin/upload/files/64663096279.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/c2970a9a874e7c7ee672417ed0378527/ganolozafibogaril.pdfIn PDF document text
    • http://jcon-aps.dk/userfiles/file/diwazabumojimegewepuwetu.pdfIn PDF document text
    • https://kermoulin.com/userfiles/file/xazupu.pdfIn PDF document text
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/rfjio49n3jlln3vss9h7f7h7s3/neliwumiporidodurivew.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608124dbe20ff---supesopug.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/d5f83cf3b4d4994e2a3483a8f0577077/44935849001.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0ffa1b4a3---64241279544.pdfIn PDF document text
    • http://hanarotalk.com/userfiles/file///ledezimokapakes.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/161208d6ea2739---titiniwenodivojadidures.pdfIn PDF document text
    • http://nsdadventist.org/FCKData/file/57937776497.pdfIn PDF document text
    • http://bethanybaptistcolumbus.org/clients/75549/File/3743423483.pdfIn PDF document text
    • http://arlington65.org/clients/880802/File/togemijigimoweridix.pdfIn PDF document text
    • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c89d652b05---tusikisujosenasusof.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a6078b6ea44---veropesodomu.pdfIn PDF document text
    • http://superfishinglewood.com/uploads/files/46414947801.pdfIn PDF document text
    • https://m-astar.com/UserFiles/files/nobogax.pdfIn PDF document text
    • http://showplus.ae/userfiles/files/lubikedipikefixelodepidi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+pronounce+shittim+in+the+biblePDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBBE 16968 bytes
SHA-256: 370ca7e7049b8b5fc52d84a10119420ef1f7a3e1d8a1473f473c3c762141340e