Malicious PDF — malware analysis report

Static analysis result for SHA-256 174adc8ac733c5e4…

MALICIOUS

PDF

70.2 KB Created: 2021-09-30 16:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 548b7f34754fe9b319055d53a6b28f69 SHA-1: 64151b17f14d9bb6d86f4ef4b90f4ebd3d6d1e86 SHA-256: 174adc8ac733c5e445292038c393a6ba17e718e0b415410c5bef11a08a454a34
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple links to external websites, some of which are hosted on compromised CMS platforms or disposable domains, suggesting a phishing or malware distribution attempt. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection confirm its malicious nature. The embedded links, such as 'https://pixomot.ru/uplcv?utm_term=mr+x+full+movie+download+720p', are designed to trick users into downloading malicious content or visiting phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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
  • 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://pixomot.ru/uplcv?utm_term=mr+x+full+movie+download+720p PDF link annotation
    • http://ilksolar.com/Images/Media/files/sojef.pdfIn PDF document text
    • https://27061010.com/uploads/files/202109240950528443.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16135c075bda1d---nakusakubojapujilub.pdfIn PDF document text
    • https://mujeresenmovimientoplus.com/userfiles/file/wikesozukuwized.pdfIn PDF document text
    • http://www.ciesol.com/ckfinder/userfiles/files/vawope.pdfIn PDF document text
    • http://markfarolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/79687168509.pdfIn PDF document text
    • https://www.hippocratio.gr/ckfinder/userfiles/files/65918324243.pdfIn PDF document text
    • https://urbanlivin.lu/userfiles/files/barorodawesipemidanepine.pdfIn PDF document text
    • http://fields-on-earth.com/images/blog/file/87056959147.pdfIn PDF document text
    • https://www.agencesramos.com/ckfinder/userfiles/files/povimifiwiraka.pdfIn PDF document text
    • http://nfrostov.ru/upload/files/lewazag.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/68560891381.pdfIn PDF document text
    • https://thailonghoang.vn/upload/files/53707677670.pdfIn PDF document text
    • http://brlairport.com/images/file/vikekivunaxuwikuza.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147d9fa386a2---56333754416.pdfPDF link annotation
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613646669b7e1---28265355900.pdfIn PDF document text
    • http://glamour-nsk.ru/ckfinder/userfiles/files/91288941205.pdfIn PDF document text
    • http://b40555.handyfriendship.com/upload/files/8891510991.pdfIn PDF document text
    • http://xedaptap.net/userfiles/file/93449377315.pdfIn PDF document text
    • http://aromaonly1.com/yamituki-n/uploads/files/21018325558.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/mowapev.pdfIn PDF document text
    • https://stephankeppel.com/userfiles/file/94267433857.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/388c361f6b08a8eed5a4e0f1562beaf8/53483571197.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e42c66d4a---demezofibigojawonuri.pdfIn PDF document text
    • https://duext.com/wp-content/plugins/super-forms/uploads/php/files/9475ef5584e3b46b75fda07596c04f04/19974303344.pdfIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b2ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2BA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAD1 11032 bytes
SHA-256: 6e6234dc31153d0dd9f0f99a9f4262450ee12f65eff2a04a92799ad23de3bea6
font_02_sfnt_off0000e48b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48B 15404 bytes
SHA-256: 08b1765ee0d8e28d39ebe3dfc17c906fd1906ba4af7726813acfd942b6e8082c

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