Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d0b40ee9472c5cb…

MALICIOUS

PDF

68.4 KB Created: 2021-02-14 14:17:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2b5aaf3a90a745cf779ea8bf220f92d9 SHA-1: 2bb82bb720bc3fb056c11da886ba34aeefede601 SHA-256: 0d0b40ee9472c5cb2546a33be2efe2b16aeb1b6d14291f96914359d9211dcc33
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=my+dear+boss+mod+apk In PDF document text
    • https://wobanuwu.weebly.com/uploads/1/3/5/9/135959505/658403.pdfIn PDF document text
    • http://xukilutu.22web.org/momezowiv.pdfIn PDF document text
    • https://cdn.sqhk.co/vegedusovo/hf70gex/gujudolapi.pdfIn PDF document text
    • http://topikufovumedar.iblogger.org/live_reports_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/xifusajexom/gF6CEjf/netflix_party_extension_chrome.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/I9hanhd/jopafurugijetufapuma.pdfIn PDF document text
    • https://bewogataxatux.weebly.com/uploads/1/3/2/6/132695278/e3ccf8adf03.pdfIn PDF document text
    • https://cdn.sqhk.co/bosesegivu/fifjaRQ/starlink_launch_scrubbed.pdfIn PDF document text
    • https://cdn.sqhk.co/navimoxa/fklmpia/ice_princess_castle_b_m.pdfIn PDF document text
    • https://vazemewezasal.weebly.com/uploads/1/3/0/7/130775722/kekodetemege-nidasamak-lewijuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/xpSjhd6/zuzozetuzuv.pdfIn PDF document text
    • https://pakilimog.weebly.com/uploads/1/3/4/3/134363837/lawitojutomurixepa.pdfIn PDF document text
    • https://cdn.sqhk.co/febenapox/CijDqic/excellent_ringtones_tones.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/ceifahb/photo_finish_horse_racing_promotional_code.pdfIn PDF document text
    • https://linugezi.weebly.com/uploads/1/3/4/2/134265501/3654328.pdfIn PDF document text
    • https://cdn.sqhk.co/muvenetu/hhidih2/hello_neighbor_hide_and_seek_nintendo_switch_walkthrough.pdfIn PDF document text
    • https://wapavamo.weebly.com/uploads/1/3/1/6/131637186/zemib_vusixokemukude_newubefop_jukopilivimoge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cf9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9D 5384 bytes
SHA-256: ac98c2cfa1f867513ddc3ba1257373402b7929edfaf19002b793c7e0175a4750
font_01_sfnt_off0000e1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E1 10088 bytes
SHA-256: 588eceaf8d96764661393acafa2e355c79ba19789e8b46b1638f61185d081e19

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