Malicious PDF — malware analysis report

Static analysis result for SHA-256 0187f0c0e703326e…

MALICIOUS

PDF

46.9 KB Created: 2021-10-03 04:47:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-20
MD5: f7c777e036b5983503b9bd8557542705 SHA-1: 6c2fd0cf8f04e631e42b1482fe50285692e855cb SHA-256: 0187f0c0e703326e9540d2b98989524c0c8f98c619964523484ecfa9026795e6
124 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable domains, and one heuristic identified it as a link farm designed for SEO manipulation. The document body is unreadable, but the presence of many external links suggests an attempt to redirect the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7790

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kahasat.cz/data/file/wipalawotugemig.pdf In PDF document text
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/92788910977.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16148bb195b702---92378978138.pdfIn PDF document text
    • http://lokalizacja-gps.pl/userfiles/file/75146253119.pdfIn PDF document text
    • https://majubesar.info/contents/files/jefokotuduwuz.pdfIn PDF document text
    • http://mnarch.it/userfiles/files/55781831131.pdfIn PDF document text
    • http://dental-forum.ru/userfiles/file/tulul.pdfIn PDF document text
    • https://morganmethod.tuesdaytrader.com/ci/userfiles/files/49723876360.pdfIn PDF document text
    • http://rentbucharest.net/images/userfiles/72612663169.pdfIn PDF document text
    • https://baoholaodong24.com/userfiles/file/52337726418.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136a91a6c424---mofukonufudomutigomuru.pdfIn PDF document text
    • http://oilspecchem.com/files/gonujopoxibisatezo.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/xutipobinogaxudopopeweb.pdfIn PDF document text
    • https://yuvasarkar.org/userfiles/file/fotom.pdfIn PDF document text
    • http://systemsbiology.at/uploads/assets/file/6863224178.pdfIn PDF document text
    • http://kalikraft.com/images/file/xesowepif.pdfIn PDF document text
    • https://igruppe.no/ckfinder/userfiles/files/52593304917.pdfIn PDF document text
    • https://sunrise-photon.com/upfiles/editor/files/mibixagobonumaboganufaxu.pdfIn PDF document text
    • https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/zepivajinaniv.pdfIn PDF document text
    • http://zjqzzx.com/uploadfile/file/2021092622041473499.pdfIn PDF document text
    • http://kientrucphatloc.com/upload/files/xumawatebix.pdfIn PDF document text
    • https://tourgardan.com/basefile/tourgardancom/files/72975539981.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=consulting+case+frameworksPDF link annotation