Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaebe67a32edc330…

MALICIOUS

PDF

93.9 KB Created: 2021-08-07 04:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: a77a096d921bfe003c0944682e5e3361 SHA-1: 23494de090c1ebe1fce2ec58d64ebf549c67b4ae SHA-256: eaebe67a32edc330db2aa42decd81afcc3a09bb327cf9ce928541da7b14cbb8e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links to potentially compromised websites, disguised as download links for a popular song. The presence of multiple PDF link farm heuristics suggests an attempt to distribute malicious content or phish users. While no scripts were explicitly extracted, the nature of the links and the detection results indicate a high likelihood of malicious intent, possibly involving the exploitation of PDF vulnerabilities or redirection to malware download sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9927

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 http://moodyhighclassof70reunion.com/clients/2/24/24f6aee67edc386a60746049a176a33b/File/girasuruxulawamidaze.pdf In PDF document text
    • http://aj-logistics.com/stock/userfiles/file/kitiximezugewuf.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/3kos3bbl5gd9tcc7t3oac2svna/manupogogitunexar.pdfIn PDF document text
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac5c383c5ad---25588924351.pdfIn PDF document text
    • http://lumieretvie.com/userfiles/file/45670573443.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16080f47ac3e09---84094234974.pdfIn PDF document text
    • https://sunarchegypt.com/userfiles/file/lemorofuzepetumubuwemubif.pdfIn PDF document text
    • https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/ac0325fe792ad6755b1089f5992ef189/nitejovubuto.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/1d8564ca23ea3b984de9a895380d593c/73339975147.pdfIn PDF document text
    • http://ukonlinedirect.com/userfiles/files/lorijedixefomeran.pdfIn PDF document text
    • http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097085e242fc---tilopemogavaf.pdfIn PDF document text
    • http://inistor.com/ufiles/files/puvabesuvidat.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c361650cdd3---69470325419.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/bj3bqv2q7vvdb7a2eeco17t100/kozivexa.pdfIn PDF document text
    • https://foodsafebox.com/ckfinder/userfiles/files/37542865650.pdfIn PDF document text
    • http://akicgiyim.com/userfiles/file/49744658075.pdfIn PDF document text
    • http://gorisum.net/fckeditor/upload_file/file/50346659027.pdfIn PDF document text
    • http://abwmountvernon.com/uploads/files/30215676570.pdfIn PDF document text
    • https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16087a04753989---76828558255.pdfIn PDF document text
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160f15c3068cd7---23651732545.pdfIn PDF document text
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b28a3b0408e---20204749111.pdfIn PDF document text
    • http://chi-kara.net/userfiles/file/79418190177.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609b61722c67f---36216432896.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/pefelanife.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f95c9e29e6---66420768673.pdfIn PDF document text
    • https://xn--interpeas-r6a.es/upload/files/78695999794.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/6goo8o6clp9idim8568s53n1r4/59630882480.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=download+old+town+road+music+video+mp4PDF 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_off00010968.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10968 11008 bytes
SHA-256: fea825c6da84a9041fdd3395f7269d10781c89e057b8228ae661865f2b224255
font_01_sfnt_off00012313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12313 17956 bytes
SHA-256: 038bc043c9ace7ee8493c1639bc693db35ebb9eb3db6aaaf2ec289efcf8b8c58
font_02_sfnt_off000150f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150F1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1