Malicious PDF — malware analysis report

Static analysis result for SHA-256 617e8c3a273761bb…

MALICIOUS

PDF

146.7 KB Created: 2021-06-11 02:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 4db44bb83cf07151f95759724486efb3 SHA-1: dec6a371fc2e08eae5c32aeb57ab1c06428e805d SHA-256: 617e8c3a273761bb7de3ff9975110cd16fe4f2462512f3d072d9b2c94634a582
156 Risk Score

Malware Insights

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

The PDF file contains numerous links to external resources, many of which are hosted on compromised CMS uploads or disposable domains, suggesting a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the overall structure and URL patterns are consistent with a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://pixomot.ru/uplcv?utm_term=lucifer+tamil+dubbed+full+movie PDF link annotation
    • http://nowyhotelik.pl/userfiles/file/12459034858.pdfIn PDF document text
    • https://clifestyle.net/uploades/userfiles/file/difirisasenebukewalulow.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/csqlm716i0l1l3ip5j3e2k0dr2/paxogugawaberes.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbef70c7b0---70106058500.pdfIn PDF document text
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16071580544b0d---35352838511.pdfIn PDF document text
    • https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/zitiletodaso.pdfIn PDF document text
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/lt9p7ijrn04rgs4mch3utmb4f1/79990093871.pdfIn PDF document text
    • http://evohome.pl/userfiles/file/moxog.pdfIn PDF document text
    • https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/bebca0022c7c00dddd342e736c9da24d/47825281975.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16094dceb9eb1b---giwolutirekiwamorituzekep.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/plphjifqptb6l4jsrq4u5nuag4/gojaloviroluwojagafajodeg.pdfIn PDF document text
    • http://balogmihaly.hu/UserFiles/file/gurugosuta.pdfIn PDF document text
    • http://tfforming.ru/d/files/lokobodubukoja.pdfIn PDF document text
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/dde0ac7b781b6b5d867a1a83f8300f88/1538902085.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160965f5f622e1---bibepegodejoteno.pdfIn PDF document text
    • http://smc.org.in)MeeraRegularMeera2016SMC7.0.0+20171102HussainIn PDF document text
    • http://smc.org.inhttp://smc.org.inIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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
    • https://gitlab.com/smc/meera/blob/master/COPYINGIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0001b1d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1B1D4 22500 bytes
SHA-256: 461bc4fe4e5993d48a61756aea98e8d1a80315394debf4daee9b61e97b6225a9
font_00_sfnt_off0001a070.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A070 5128 bytes
SHA-256: c42c7511d4c5f3d6b2d3c6588a6059462c59f176449d7006d6c34ff6431fbae3
font_02_sfnt_off0001f5e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F5E9 1972 bytes
SHA-256: 26ae24f394867a791d59a0a3ebc33b0cfa5a016a42274c11370237b10bc4f323
font_03_sfnt_off0001ff5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FF5F 11668 bytes
SHA-256: c0c8014600bdfcce1b994ea74e38d5e325fcd0f66f8cbaab98f086bcb4af4c8b
font_04_sfnt_off000226e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x226E4 16164 bytes
SHA-256: e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6

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