Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea37bdf4f787adca…

MALICIOUS

PDF

79.7 KB Created: 2021-02-20 18:45:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c1dc1bf50a15b33950fbcb51feb2fcd0 SHA-1: ece64505c0ff41133f0afbaad68a5f4626c0b478 SHA-256: ea37bdf4f787adca67389636def8a68b033823a8938d0b1b431d5de7d4e48963
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=miller+bobcat+225g+battery+size PDF link annotation
    • https://gofadoden.weebly.com/uploads/1/3/4/6/134615513/vimuvivozopeder.pdfIn PDF document text
    • https://zoviwifave.weebly.com/uploads/1/3/6/0/136053666/a3d52.pdfIn PDF document text
    • https://wodorolijuzawex.weebly.com/uploads/1/3/4/7/134770742/4330159.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369316/normal_5fd060aaeb9d3.pdfIn PDF document text
    • https://podesasi.weebly.com/uploads/1/3/1/4/131437149/jinug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450732/normal_5fc9ce4141645.pdfIn PDF document text
    • http://sibuvre.com/466308969532l9rd.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/iehbjaR/mouse_game_for_cats_android.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491168/normal_5feee6fcaadd9.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/bhcjhCe/ganolor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428054/normal_6001d08d94033.pdfIn PDF document text
    • https://xidelesa.weebly.com/uploads/1/3/4/4/134498911/2262637.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gulavutimomoxu.rf.gd/25075708831.pdfIn PDF document text
    • http://xinudekewukipi.rf.gd/wifigude.pdfIn PDF document text
    • http://tokipobobanokab.rf.gd/begoruzikafuterifu.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fa26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA26 5520 bytes
SHA-256: ad969870e5777335006ea4b9287f26f8d2e82a91842a8415e30debc23bb4a57c
font_01_sfnt_off00010d28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D28 10848 bytes
SHA-256: 5d06354e83dd27c130d910cadc6611d0a1f2e7522258a7ad8c819eacec2025e1