Malicious PDF — malware analysis report

Static analysis result for SHA-256 76a4ea9f89c2f9ec…

MALICIOUS

PDF

112.9 KB Created: 2021-06-28 00:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 1a20999034b60e2848702a766044f9c5 SHA-1: 2570525e512a45cba4805e29c287dfee85daff74 SHA-256: 76a4ea9f89c2f9ecdac788ae88051356ba7e16bcaa94acdfd3a364503a3d24d3
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress installations and other disposable hosting sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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://inwebjor.ru/uplcv?utm_term=solitude+happiness+quotes PDF link annotation
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4365e7806---dusik.pdfIn PDF document text
    • http://vencedor.coop/images/admin/file/pafudub.pdfIn PDF document text
    • https://balajihighfields.in/userfiles/file/wifesezaruzugefubegusobuf.pdfIn PDF document text
    • https://tidaksusah.com/contents//files/duniwiwixurejisok.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/mmp6epe6325lnv97a5rvkfkhr7/11625864781.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c795cade242---jexijuvibufibogap.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/vobaxumafa.pdfIn PDF document text
    • http://shuswapladystriders.ca/userfiles/file/dujefenezudopamoso.pdfIn PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609f454e7836b---vuruporefirafenoni.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160b5aa0913966---61660039604.pdfIn PDF document text
    • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/160aa78f9483de---52611216738.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160848074bfea3---53847425862.pdfIn PDF document text
    • https://f27szerviz.hu/upload/files/88008410145.pdfIn PDF document text
    • https://www.jscorporation.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1608c9046b5a63---58938097542.pdfIn PDF document text
    • http://singer-island-condos.com/userfiles/files/wubufazidafufunipilu.pdfIn PDF document text
    • http://www.majoriscambio.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160706bcf916c7---37766783422.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/ltc7iqrp73gs457e7je1vmi6gb/21437665747.pdfIn PDF document text
    • https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/jcspejebitov68nsfjunq7c2mt/22565974585.pdfIn PDF document text
    • http://wingprocess.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/75977635061.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/n84lu2mq8p1smra8416c8f6mvi/lejonijumu.pdfIn PDF document text
    • http://ecohort.com/userfiles/files/vexosuwebejepizijeseko.pdfIn PDF document text
    • http://mestav.sk/uploaded_images/file/zefavazabiruvewode.pdfIn PDF document text
    • https://flardochform.se/userfiles/file/8405453411.pdfIn PDF document text
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/3bfcc6f74c153613ab77854862fbef39/41817351005.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_off00013eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EEB 16632 bytes
SHA-256: e896d0c9c6509c93731645541c0836c845742b74f7fde2e8ff5e94baacc6a6a0
font_01_sfnt_off0001567c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1567C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00016e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16E93 10712 bytes
SHA-256: 6d58b4dab425b48c7fd857e756c4d2e2b5133327435e05fc5d4abba831e62285
font_03_sfnt_off000186de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x186DE 17680 bytes
SHA-256: ff52d8e0596613ffc8e0f0f43724f1c3386aa852da385391c8a532c113b59a9f

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