Malicious PDF — malware analysis report

Static analysis result for SHA-256 30ce49f49329f79b…

MALICIOUS

PDF

86.1 KB Created: 2021-06-25 22:11:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 08f78285ce87465698e5fc19cc0916ac SHA-1: 71b9517d68638e6c71ca649e36cd1490b929a02f SHA-256: 30ce49f49329f79bdad29fb1feedb2544feec6fe2262d1ba25aa4da7622eb0de
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous URLs that point to compromised WordPress upload directories. These links likely serve to redirect users to malicious content or phishing pages, a common tactic for distributing malware or stealing credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://veglifekc.org/wp-content/plugins/super-forms/uploads/php/files//87502203107.pdf In PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/9c66d4fcfd19f51fd832f5a1133a5059/70293300534.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/v2okmahcajqodul7td55o09k8e/1664516404.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/skg8t9hto91npp27fmga8bk9e1/25143799290.pdfIn PDF document text
    • http://jfe.hk/userfiles/98275392588.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160722dbcd5a9c---vizovovobugewameropas.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160741269e56b9---setapozetukufitigalavifoj.pdfIn PDF document text
    • http://ctkupavna.ru/upload/file/xulekasasenelofe.pdfIn PDF document text
    • http://deltastal.ru/userfiles/file/5675868027.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/51c022f8b15bfaae86ef32de8267237d/21523080366.pdfIn PDF document text
    • http://quincy.pl/ckfinder/userfiles/files/53290944623.pdfIn PDF document text
    • http://karpatskiles.ru/store/files/xujikatetipigoguku.pdfIn PDF document text
    • https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/aeecd5e58d4c60b70b1165a6f127f4f6/zafupiraketem.pdfIn PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/f3855d8fadcad501b8660e8cbe9bc7b2/bolavuzezufudipena.pdfIn PDF document text
    • http://consoles-a-gagner.com/fckeditor/userfiles/file/gokizavafe.pdfIn PDF document text
    • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/ae9e5ee3a2f6b034ae9bd79cfc009b5c/solujemugapijawonabivuwip.pdfIn PDF document text
    • http://guilfordvikingsclassof81.com/clients/4/47/479b0a304b4cdce99dfe3eda73a59016/File/97292907629.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/254d1111449d9789266846316d47cb5c/tuvagetibibu.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1da1390bc---xemefoxazixaguterijomab.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/ace9d1c8b47f53c153c45e1ff42cffaa/597349132.pdfIn PDF document text
    • https://advantagelic.com/singhania/downloads/file/jawuwibusexes.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/1c41ad1785d9a92612cffb1475d44a8c/41919457987.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/bd5ql206prdldmf35nkhao875a/rotuzavimeniredetimaxiju.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=days+without+sex+memePDF 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_off0000e8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000100d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D0 10524 bytes
SHA-256: 55b9890c1461da57dcd4aab445150d464105edf69d85c312e16f8e280b99c1b0
font_02_sfnt_off000118ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118EC 19216 bytes
SHA-256: e1bcbcb25e9380f19a49a826ca23eadffb910c23a045451635b6dcd3e71ee40b

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