Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5d34ed93a307dd…

MALICIOUS

PDF

77.2 KB Created: 2021-09-01 16:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: a6fdd6993e4f5362f5f2c0ac0d9a7a00 SHA-1: da2f5b9d1595e6c00349b3e78e5d33b46cf20c45 SHA-256: 7e5d34ed93a307dd61f0a14c72d6a86c740bbadbc6681d936cffce572bef346f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to various websites, many of which are hosted on compromised WordPress installations. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure suggests a link farm designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 6

  • 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
  • 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://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/321h0f1lsnl58f8194ibd703qo/mominesinoxobonunil.pdf In PDF document text
    • https://harom.ro/files/file/29809409395.pdfIn PDF document text
    • http://exoticland.bg/upload/files/files/sixidojobov.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d17a56d9c4---67597677991.pdfIn PDF document text
    • http://angkagenap.com/contents//files/27069553997.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611f00d51d452---julukikopaz.pdfIn PDF document text
    • https://kuepancong.com/contents//files/95757937314.pdfIn PDF document text
    • https://pacie.vn/web/uploads/files/20150634657.pdfIn PDF document text
    • http://gsxr.hu/userfiles/file/48613773090.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/a240d2ec3869c91db2e0f7796d8add13/tajotorowunoloduzu.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160751d5fa593b---desuzakenexafakuvumujafi.pdfIn PDF document text
    • http://mamitobe.ru/files/file/lelirufupuxijavapevomu.pdfIn PDF document text
    • http://onfireinteriors.com/userfiles/97753504639.pdfIn PDF document text
    • https://abugfreemind.com/userfiles/file/77896209396.pdfIn PDF document text
    • http://abwmercury.com/uploads/files/sozopavofitamaxuxarotiz.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c826366a0---xivakokibavokug.pdfIn PDF document text
    • http://haumeaonline.com/userfiles/file/59987485705.pdfIn PDF document text
    • http://harekatmemuru.com/images/Media/files/lirosowulifuxemogetesero.pdfIn PDF document text
    • https://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612038a1cfb1c---rapixubere.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160f2f8fdd4875---weparozenoxixubaze.pdfIn PDF document text
    • http://bajkolandia-leszno.pl/userfiles/file/muworojivujuzuj.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869f2d15fd5---44468312645.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=act+70g+answersPDF link annotation
    • 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_off0000c977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC977 17788 bytes
SHA-256: d8098eb9d8b75aad26172361fb287444ccbc4bd4f72ea2b70cc914145b624053
font_01_sfnt_off0000f770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF770 10388 bytes
SHA-256: a2200ed8e303596df0ae2c0094dc6de96748d0ee4f2b427387b44cee1910306a
font_02_sfnt_off00010f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F4A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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