Malicious PDF — malware analysis report

Static analysis result for SHA-256 3113292df509aa11…

MALICIOUS

PDF

72.2 KB Created: 2021-06-17 14:20:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ed2b2d2afc13afd485d416db5d5f66bd SHA-1: 5ef33bbe3512a4cc79dc11526372e80b096c914d SHA-256: 3113292df509aa1192e6afc4c30772d29c69951719d383e728e79ada95b2a413
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9662

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 https://madopin.com/calisma2/files/uploads/girugo.pdf In PDF document text
    • https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/7645c2177d46059c87d20f65652f5a16/12606128124.pdfIn PDF document text
    • http://alituncer.com/userfiles/file/zapam.pdfIn PDF document text
    • https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/cdd96ea3a3f228aebfeead60a3af84b7/vowadavatu.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160806a962fc85---vegejiluxifanab.pdfIn PDF document text
    • https://abugfreemind.com/userfiles/file/13500607275.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/454f496581f776e599835723a2ad6fac/vovax.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607542f296d63---kosidunipavutelimimor.pdfIn PDF document text
    • https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/c101436999a532d85f76ec6c196fff4f/32457346360.pdfIn PDF document text
    • https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/044b157f92a93a448ae624d49598fc7e/pifiremutov.pdfIn PDF document text
    • http://www.la-rocca.pl/app/webroot/files/files/22961400390.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/rcupcki3b3e4cn0a13ne3mtf82/tegeduvavamamorerusu.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160703745e8181---forevovijisun.pdfIn PDF document text
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a7351e7f28---90906738119.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b302a5964df---82753622462.pdfIn PDF document text
    • http://paillasse.hu/userfiles/file/bezizotajirugalazaz.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/58cbcb050a4c1f305ae6bd37b7fa60e8/92706319643.pdfIn PDF document text
    • http://thedreams.cz/files/sofevakexekudaloxu.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/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=third+day+god+of+wondersPDF link annotation
    • http://irodori.kir.jp/files/file/fajuxigixo.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001068a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1068A 5280 bytes
SHA-256: 2c5f5a98c29c368d1f50a53c1fc053252f6f53a873b8f3cdddde3be1d79194c0

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