Malicious PDF — malware analysis report

Static analysis result for SHA-256 7005253d7b34c6f4…

MALICIOUS

PDF

72.0 KB Created: 2021-03-02 14:46:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d60db40c65fbf394d946e3f9861f0e83 SHA-1: d5cf424c47c0b7a528f513cf5103ccc6157831d4 SHA-256: 7005253d7b34c6f417ac3d0b69daaa7b4b395e6bd478a188baa593e53e3298b8
126 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, embedding a large number of external URIs, with one notable example being https://dugedepap.ru/123?utm_term=mercury+150+efi+fuel+system. The document body contains garbled text, suggesting it is not intended for direct user consumption but rather to host these malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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://dugedepap.ru/123?utm_term=mercury+150+efi+fuel+system PDF link annotation
    • http://rawoxaxevog.mygamesonline.org/habit_reversal_training_for_vocal_tics.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/fimolerite.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/91054114599.pdfIn PDF document text
    • http://damvglaz6.xyz/dhoom_machale_dhoom_1_lyricsp6khy.pdfIn PDF document text
    • http://onlinekartiadesi.com/cantos_para_misa_de_difuntoshx4i7.pdfIn PDF document text
    • http://bafiselavanebep.mywebcommunity.org/bible_interpretation_books.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/37423687732.pdfIn PDF document text
    • http://smilex.club/18785361854ywxgq.pdfIn PDF document text
    • http://perevod-card2card24.site/33258852486wwwex.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/metal_gear_solid_v_the_phantom_pain_ps3_mod.pdfIn PDF document text
    • http://zimezobot.getenjoyment.net/derisadorobunul.pdfIn PDF document text
    • http://dosijefa.mypressonline.com/63553197873.pdfIn PDF document text
    • http://rukozhop-guide.com/55638231510x67bc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pekomuvave.myartsonline.com/pizubuxodadevesut.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/17742597404.pdfIn PDF document text
    • http://sijadogif.atwebpages.com/geguzixavojudovikafozi.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/telugu_chirutha_songs_com.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/16873259636.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_off0000de6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6E 5244 bytes
SHA-256: 0ac35f114d56fe640f34ec63ace10ecd02404c01d0c06434a5651528599a0ef0
font_01_sfnt_off0000f057.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF057 10208 bytes
SHA-256: 31e44a8e9f5d60918b86e2c941eddab29e87f75b65469331d302ca414ceaff96

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