Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fd2ca5d1fb685a5…

MALICIOUS

PDF

169.8 KB Created: 2021-06-28 11:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: a831ddb0534d8b3f8483e06f6a4eafbe SHA-1: 8804a0ee98fd3c648b1295ec7303d1df331ed6d5 SHA-256: 5fd2ca5d1fb685a5a68c75b862cbd5434c4bc4386f459a96b079d32253ab5a8c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains numerous links hosted on disposable domains and compromised WordPress upload storage, suggesting a link farm designed to redirect users to malicious sites. No scripts were extracted, but the presence of multiple external URIs and the overall structure point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9636

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://chcial.ru/uplcv?utm_term=on+her+own PDF link annotation
    • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/49edc36a6b270deddc971f2b3a84bffa/bawejutujuguwakizu.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbbd4930fa---95885896989.pdfIn PDF document text
    • http://rolmech-strzelno.pl/Upload/file/nazewakesuloxejuta.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/38856015775.pdfIn PDF document text
    • http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4ec732cbe---balelutu.pdfIn PDF document text
    • http://fixafilm.se/userfiles/file/nilopagof.pdfIn PDF document text
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0f5760c55---98231866404.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/7fcfc4d7fd4404efa079a62be8cc513c/torotigunumetofofibituxe.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607f010ca5b7a---gavulabitaxatalibijuvowif.pdfIn PDF document text
    • https://orldoc.ch/wp-content/plugins/super-forms/uploads/php/files/g4noos478m5ukf1i5k4is52823/28618225245.pdfIn PDF document text
    • http://travellightnepal.com/userfiles/file/82289557151.pdfIn PDF document text
    • http://designpavelzapletal.cz/files/file/tupojex.pdfIn PDF document text
    • http://homelife-superstars.com/image/files/wutuboditara.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160a97191ef70c---17558793765.pdfIn PDF document text
    • http://architects-desk.com/uploadsfile/67337479034.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/rigagoxiraf.pdfIn PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/7af7b1d3321f2068c562cddc0281201d/40540447383.pdfIn PDF document text
    • http://thamdinhgiadaiquang.com/img/files/85468216163.pdfIn PDF document text
    • https://c-effeimmobiliare.it/file/zaluwaxi.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/349q121ocqpuhvvnqovcr4adu3/zototixozapoduxexapid.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a638896b2f3---94257617163.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/36e9828f59cfa62565a2648325084484/24915714555.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/gg6tb9c3psc2v4cg9gpjikp1jn/zanok.pdfIn PDF document text
    • https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/b5a1e2c57fccb82be53be7c597cf8c71/61718740463.pdfIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEE8 9748 bytes
SHA-256: 77dc1cf2a46bda3c158562ef8d050a4b02e212f3c2ee36ea077c2f591039fe00
font_01_sfnt_off00011427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11427 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012c39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C39 20980 bytes
SHA-256: e83a2d6682d424d67cfc80d65566add734d36843fbdf8fa13de799aec126f528
font_03_sfnt_off000160f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x160F8 126076 bytes
SHA-256: 6280bae5f602d6a5399f27dd18f2820c5c7635f2895eac2f83540000e0b726b3

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