Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7c932d7fe0752f…

MALICIOUS

PDF

83.2 KB Created: 2021-03-30 20:35:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 78d3bba643d1c2f3d82b4f5cf60be476 SHA-1: 4c7cea927276c63ff5cf5d2c4a5c00bb2e6e38ad SHA-256: fa7c932d7fe0752f9b64d7c6fd7696835e767efe9df1644c66f50f6fc3b56698
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to direct users to potentially malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/strik?utm_term=spanishdict+possessive+adjectives+quiz PDF link annotation
    • https://cdn.sqhk.co/remuzebepilu/hcYVja3/xenajaw.pdfIn PDF document text
    • https://cdn.sqhk.co/xogedusov/hcjb61F/48069823659.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/361d57172.pdfIn PDF document text
    • https://cdn.sqhk.co/zapimafe/iRkKhjv/34563261551.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/edenpure_a5095_gen2.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuniruf/jdibgfS/lugop.pdfIn PDF document text
    • https://misapunuzure.weebly.com/uploads/1/3/1/6/131606411/totagufoxem-vobifem-buvosezup.pdfIn PDF document text
    • http://jisetatiloro.scienceontheweb.net/lozuwe.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/ibjj9Kr/586837716.pdfIn PDF document text
    • https://cdn.sqhk.co/mezutorixo/LgfgjCO/51839503896.pdfIn PDF document text
    • https://cdn.sqhk.co/tenerinirik/icije6L/14288217007.pdfIn PDF document text
    • https://cdn.sqhk.co/bogonelemid/ijVjjie/21727167347.pdfIn PDF document text
    • https://cdn.sqhk.co/zanivuwiduvo/yVxzugi/how_to_get_superhero_mods_in_minecraft_pe.pdfIn PDF document text
    • http://juvovagesubo.mywebcommunity.org/41415439630.pdfIn PDF document text
    • http://nukapag.getenjoyment.net/77657423602.pdfIn PDF document text
    • https://cdn.sqhk.co/derilunadine/WiaO1jf/71571839715.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/rorigerimupuxezoverov.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/blackmart_apk_app_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/masevewi/59051681335.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/breville_juicer_bje820xl_manual.pdfIn PDF document text
    • http://tebogekememesij.mygamesonline.org/58524142237.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bdee3e82-1fe6-4084-b289-f15f5249f83e.filesusr.com/ugd/749937_7501e166f6734b29904bd42be43d7de2.pdf?index=trueIn PDF document text
    • https://5366dd3f-28a3-4342-b8e5-5bed86455aec.filesusr.com/ugd/a92322_0d1714574063472a86b2a483e3f01338.pdf?index=trueIn PDF document text
    • https://69f1164a-dcd3-4310-9fb4-3b67f03bdbb0.filesusr.com/ugd/9d7282_680a571bcb444a9fb49df708b4825b75.pdf?index=trueIn 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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED29 5448 bytes
SHA-256: 42e0192a44b90e29cc118934c7deb710e06827a4f29347f5418aa17a96634dcb
font_01_sfnt_off0000ffc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC0 12016 bytes
SHA-256: 9619b080d21b2a3fc2425565e2ede396ef63dff94a69fca29f6c7eb2d885934f
font_02_sfnt_off000127b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127B5 16128 bytes
SHA-256: c6d15a48544a3bb55b86c8e7bdd0e7cb70a7a2427dd0dd016b970b4b8641d415