Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fee6a246f03a850…

MALICIOUS

PDF

75.8 KB Created: 2021-08-18 05:18:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 29ec9f55f4076c3b208b40e4ceaa67c7 SHA-1: b405d0ed870f91597418aad431939ea99f6f76c1 SHA-256: 1fee6a246f03a850e9f1df00ec1dcc731bd402c23383151a7f8aa00e07be0ec4
156 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. The PDF contains numerous links, many pointing to compromised CMS upload directories and disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/39655349766.pdf In PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e896bbfcd---44533120675.pdfIn PDF document text
    • http://am-assets.com/aom/magnolia/userfiles/file/73503062135.pdfIn PDF document text
    • https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/4ed24e6d61fcef323514a2172467a769/47667677767.pdfIn PDF document text
    • https://2ruoteexpo.it/ckfinder/userfiles/files/94080705059.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/egmorint52v4f7e05n3lj42ndp/26662305972.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608da8a7c86ce---vasixexib.pdfIn PDF document text
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/55281a498c158f18a346d4700eacedeb/subegiwivexir.pdfIn PDF document text
    • https://uleiuri.ro/userfiles/file/natoziz.pdfIn PDF document text
    • https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/b151e591de88fb1d39d85682c1af5ca1/ralumovuvo.pdfIn PDF document text
    • http://braciszewska-klimek.pl/fck_files/file/tixepaze.pdfIn PDF document text
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/6f811f31f0636326bbb0209fdc7b6a00/87835235214.pdfIn PDF document text
    • https://www.ojchamber.com/ckfinder/userfiles/files/lupozudojibinepa.pdfIn PDF document text
    • https://agape4u.org/userfiles/file/61006780811.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/a29251f528363a2a028de1beab99d4c8/42062032987.pdfIn PDF document text
    • http://geodeslaboratori.eu/userfiles/files/masomagokived.pdfIn PDF document text
    • https://wrd13.com/force/file/natusoganopewevali.pdfIn PDF document text
    • http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/h1phtpd5fb9opu90ld60q3ium3/juzafepimaxapifo.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609e01072a1ec---96802808366.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1d3aacd9f6c07321affe641a960b99c1/3694713144.pdfIn PDF document text
    • http://digifast.cz/userfiles/45057214279.pdfIn PDF document text
    • https://sygimportaciones.com/wp-content/plugins/super-forms/uploads/php/files/g0b0o33m1o8k3hnkimp2fc2e3l/83994585422.pdfIn PDF document text
    • http://caratow.eu/userfiles/file/86563209800.pdfIn PDF document text
    • https://agriplan-rs.com/dados/ckfinder/files/47965421817.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=citizen+watch+gn-4-s-11h+pricePDF 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_off0000c5f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5F6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000de0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0D 10828 bytes
SHA-256: f4302d3f605c9578002eeeda74e384646e17f47923dc5c4673f59425318b8826
font_02_sfnt_off0000f73f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF73F 16504 bytes
SHA-256: 37fe3681fc5169e2523aa26cabeecb281d73bdffcdc3313cbd74cabbb026e49c

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