Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0abbcee5667042f…

MALICIOUS

PDF

83.0 KB Created: 2021-07-10 04:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e55a1960eea52a280a67530e5cf49ad0 SHA-1: 8df3ac56ed2aa61b6bd4b36a6d54bb4e64db0bb3 SHA-256: e0abbcee5667042fc8d2fd59947f2f651bb20f5cd3d851b7f881f34e4f79b407
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which point to compromised websites hosting other PDF files. This behavior is indicative of a link farm designed to redirect users to malicious content, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/qd78fcpkelgqru22ev9r26l1r0/bomew.pdf In PDF document text
    • http://ac-kenigsberg.ru/files/file/lufinulibezivedizix.pdfIn PDF document text
    • https://ikima.fr/uploads/file/65297188379.pdfIn PDF document text
    • https://www.gasserbush.com/wp-content/plugins/super-forms/uploads/php/files/d62ef042662bd4a5d602bc8d3e8a39fa/92462794397.pdfIn PDF document text
    • https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e664992ce08---kuzetudoritepenebanepew.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/838ee10afa0f785315b6eae95ee05b39/wujugutezosirokutori.pdfIn PDF document text
    • https://arizonalightingsales.com/wp-content/plugins/super-forms/uploads/php/files/0d3fb26b2cce7091e1a3f9cb58460fb9/40696775347.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/b11af71089ddda6f7a01349497fb0dc5/66882520712.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd70dc71df---4582050434.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/67313177580.pdfIn PDF document text
    • http://biomisszio.hu/tmp/5309190006.pdfIn PDF document text
    • https://mariapolis.net/ckfinder/userfiles/files/donabi.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6ad628117---terakekogekig.pdfIn PDF document text
    • https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/ace8ecc392733e62ec9134f7e59c0283/sutofa.pdfIn PDF document text
    • https://luathoanghuy.com/uploads/files/69982799821.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/1eda299163f35905262a4422936421b1/xinuxirikizazesobibomonu.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a564a3d96cc---46976302266.pdfIn PDF document text
    • http://kozelskadm.ru/files/uploads/files/pelukurudomutav.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c946a4bb83---43724064883.pdfIn PDF document text
    • https://kaptenhoki.info/contents//files/zusobobarej.pdfIn PDF document text
    • http://slippersymposium.com/clients/875641/File/24797168190.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/44496037082.pdfIn PDF document text
    • http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dab77987eeb---14730237232.pdfIn PDF document text
    • http://deepakbatteries.com/uploads/file/30664063658.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=minecraft+how+to+get+treasure+mapPDF 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_off0000e2c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C2 11060 bytes
SHA-256: 6cbdaefa827efa34746ae0cd2ad7bf2eea796e1dd82b55c2ba2d5d8fe541d91d
font_01_sfnt_off0000fc72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC72 16352 bytes
SHA-256: 082a4456230e6378f2338876a1fac4d9d87223db9b19a8b2fd4708a6323930d7
font_02_sfnt_off000126c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1