Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a97c99fd1264e5…

MALICIOUS

PDF

66.7 KB Created: 2021-06-01 11:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a93c75b43f1247274251038e2c76a946 SHA-1: ff7c421ea022c928ce76c3c62416de0b75b1d021 SHA-256: 80a97c99fd1264e5081b99af4ab14b268f74e049c8c20afe38398ebb8c5102bc
154 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan by ClamAV. It contains a link farm pointing to numerous compromised WordPress upload directories, suggesting an attempt to host malicious content or redirect users to phishing sites. The document body, though heavily obfuscated, contains text related to Arby's coupons, likely a lure to entice users to click the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8518

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://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adbedeb12c2---wefemakole.pdf
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606dfea5b381b---viwivuxafomijujosizomoseg.pdf
    • https://aimara-bg.com/userfiles/file/modijegokeniwagotu.pdf
    • https://cgeminfos.ma/upload/file/3527767893.pdf
    • https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8246f0e5802da67df9583da52cb50f0e/95717428335.pdf
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160af9fad49b78---46058249593.pdf
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b00c172986---26959150523.pdf
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e823211ff4---49169597430.pdf
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/16086b2c7434dc---bokitisunofexozoz.pdf
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/f101e5c950d0486b52f7a96992d5513a/refawubisume.pdf
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608262755b8d5---wupabamekepafanotedo.pdf
    • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/3a8105f735d1c623275e29db8e347959/67363862102.pdf
    • http://africa-emergence2019.com/userfiles/file/siwarazuditutanefizuk.pdf
    • https://alzubidi.com/userfiles/files/87075929054.pdf
    • https://advantagelic.com/singhania/downloads/file/29758253967.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=arby%2527s+2+for+6+gyro+coupons
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d62a.bin
a81ad9da3264360c04986b4709c0b6f5807bcf7fd606a20ffe7aa5a2814b4e67		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD62A 5128 bytes
font_01_sfnt_off0000e7b1.bin
35bc2526cf721a336d51c67f39e1088c2bf9c4180b3af4b0f987dcb2010dbad9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B1 10892 bytes

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