Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffbc29b39c566302…

MALICIOUS

PDF

63.6 KB Created: 2021-06-23 23:56:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 85853cba6488510cad67345321bd0bbc SHA-1: 7f3095b06e3211361c62764de1251fde29cd9e23 SHA-256: ffbc29b39c566302925c59fa36aedadee7016537b01235828ea40cd2738e77d2
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to potentially compromised websites, suggesting an attempt to redirect users to malicious content or phishing pages. The document body, though heavily obfuscated, contains references to 'One Punch Man dubbed in English' and wkhtmltopdf, indicating a lure to attract user interest.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9838

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://bowenlawmt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/51207519517.pdf In PDF document text
    • https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607015b369a78---xewimo.pdfIn PDF document text
    • https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/c6b2ee640bc668eb6af553671859547e/37003609192.pdfIn PDF document text
    • http://gancza.pl/userfiles/file/75487270281.pdfIn PDF document text
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083efd791b92---98473981988.pdfIn PDF document text
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/9186c7c3bdbb90c620e9d53dfe485175/52180306430.pdfIn PDF document text
    • http://beateromer.com/bilder/file/furumixupufexu.pdfIn PDF document text
    • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a31a871d5f---jikelezodalugurupeb.pdfIn PDF document text
    • https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608567fd04aee---15104381932.pdfIn PDF document text
    • https://tailormade-sales-marketing.com/userfiles/file/94080995195.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/jbci1f6br9tv7pbd16rhbm8luh/natowikatoguxobetaku.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b7419db0143---vafinopoxunariv.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/98598fe551c37491f1bb413a0cad9365/nesozazufaratapapuwaxit.pdfIn PDF document text
    • http://poorclarescork.ie/images/50222224601.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=one+punch+man+dubbed+in+englishPDF link annotation
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC52 6568 bytes
SHA-256: 792e288023e4fbe73a0351c4e4cf94c19217598e688914c0413f09f13c1160d5
font_01_sfnt_off0000ec9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9F 5560 bytes
SHA-256: 449f99bcd4411fa82e411434d1f483bb9d8760a4dd5b42ed722b173c3865936b

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