Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44df14c312b85ce…

MALICIOUS

PDF

78.7 KB Created: 2021-06-14 07:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 52fb6934aa7e9a44503cf92f78a174f2 SHA-1: 24f33d2321130d30343fbc8ed8206149d4831a65 SHA-256: d44df14c312b85ce6c84c8f52425331f8ddfa7fad696c1e01d3d3f2765c59ef3
164 Risk Score

Malware Insights

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

The PDF contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites, suggesting it's designed to redirect users to malicious content or phishing pages. The document body's text, 'Mustafa ka gharana salamat rahe naat mp3 free download', is likely a lure to attract victims. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://philabc.ru/uplcv?utm_term=mustafa+ka+gharana+salamat+rahe+naat+mp3+free+download PDF link annotation
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607a529aa1200---54856467745.pdfIn PDF document text
    • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/6e2815fb25477a16185b25df32b038ea/pifojuboxukevariko.pdfIn PDF document text
    • http://bahtiyardishekimi.com/fckfiles/file/27486035260.pdfIn PDF document text
    • https://chambres-hotes-aube-bleue.fr/userfiles/file/rifomodopufuvezawef.pdfIn PDF document text
    • http://leinerpakgelatine.com/survey/userfiles/files/18188042568.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/8qpaablakeq42fpuufr5jhvlp3/fanikuliwizefeneluvitev.pdfIn PDF document text
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/6mhvmm1i2g38veuk8o5q3kh6l1/mozuxakojufujaxafe.pdfIn PDF document text
    • http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/sunivefadudunipuxe.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c42e1f432---59410887520.pdfIn PDF document text
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/1u24ufk60nmfp0pqpnn8uo9i75/lolikusukolox.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075506592d44---rufaturixekisoseduj.pdfIn PDF document text
    • https://www.cittadelmiele.it/wp-content/plugins/super-forms/uploads/php/files/81f86b2448671602703aa8b4eae7a61f/73405829399.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609064a4f085a---27423978261.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082bb3571d81---63802678612.pdfIn PDF document text
    • http://mousike.it/img_ins/files/dajulamajiropi.pdfIn PDF document text
    • http://tantos.jp/js/upload/files/ferovilonot.pdfIn PDF document text
    • http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/ukq72tsd76k85htir3b9qqfhv1/mixevugadefawuwon.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606e7e5f07372---50949569148.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC67 5780 bytes
SHA-256: 8305b9ff1752f1848dcaa0189393e714eb0246b60f90ce095eb0ef1d321f3aa6
font_01_sfnt_off0000f00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00A 11192 bytes
SHA-256: 0b6e26c53d43083657c41770f87e8850b46cc010148a2e934467043e115f0360
font_02_sfnt_off00011657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11657 5964 bytes
SHA-256: f7feea993b9c01cdbd36d073686349061309074f2588ac060b1ed9180fc11884

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