Malicious PDF — malware analysis report

Static analysis result for SHA-256 6bb36d739cb26239…

MALICIOUS

PDF

68.8 KB Created: 2021-02-28 00:11:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 69d1835a440673ee160a6415aea3681b SHA-1: 0057b1211831118a405a7eafe558cb7691111d8f SHA-256: 6bb36d739cb2623961650eea3811e6c958b5c6227ee835a94af81cfd713afb98
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a large number of external links, suggesting a link farm or phishing attempt. ClamAV also detected it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a malicious intent to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://druttle.ru/123?utm_term=charmglow+grill+burner+covers PDF link annotation
    • http://wonder-ita.fun/tedunedosozusexinofuzes5oie9.pdfIn PDF document text
    • http://smartcreditus.info/6920165206rp8na.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/xemunuda2osry.pdfIn PDF document text
    • http://ogranifruit.space/fuwixezawuxanijat3zm9o.pdfIn PDF document text
    • https://suguturame.weebly.com/uploads/1/3/1/4/131438741/parininu-zepid-xojubaval-gudofa.pdfIn PDF document text
    • http://kellys.space/650873609592eqsk.pdfIn PDF document text
    • http://opt05.ru/tejogobatiz167wo.pdfIn PDF document text
    • http://dmgameplan.com/elder_scrolls_rule34u5t19.pdfIn PDF document text
    • http://kiwenalod.medianewsonline.com/veg_recipe_of_india_chilli_paneer.pdfIn PDF document text
    • https://fevobubutexub.weebly.com/uploads/1/3/4/4/134481878/manujarom.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/51430343514.pdfIn PDF document text
    • https://xiwupezarevapo.weebly.com/uploads/1/3/2/6/132681984/7197619.pdfIn PDF document text
    • http://iglivesupportteam.com/are_gluten_free_products_healthytqzbg.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/66798145363.pdfIn PDF document text
    • http://fishland.store/paralisis_cerebral_infantil_clasificaciongmwu2.pdfIn PDF document text
    • http://dorightschool.com/xalexowezgfw6v.pdfIn PDF document text
    • https://telogedibosujo.weebly.com/uploads/1/3/1/4/131438044/33398a82.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/bls_spain_visa_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/56946620600.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/mp4_music_video_websites.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/certificate_of_excellence_template_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/lifugeku.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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF1 5412 bytes
SHA-256: c038134d66a5c6d16e85d6b6c4c77ffc4208532f9e223532a3aca04427cf0318
font_01_sfnt_off0000e143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE143 10260 bytes
SHA-256: fce06d296aa817ccddd796a546fa1a3518c1488a690b6a090a2a0e024061184d

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