Malicious PDF — malware analysis report

Static analysis result for SHA-256 717d9d36e4e118bd…

MALICIOUS

PDF

73.5 KB Created: 2021-02-17 11:18:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 54aba4870d12b245fb5d2be832f661a6 SHA-1: 52d2569043d5197952906166bd6575d28670107d SHA-256: 717d9d36e4e118bd748239b632cf52a273ebcf72f02e0607de7d045d055c0457
146 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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jottigo.ru/123?utm_term=california+housing+rental+application+form PDF link annotation
    • http://reactivaperu-viabcpi.com/5557085274398bdz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421205/normal_5fcf8c3d21cf1.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/ge7jkqK/capitalism_space_colonization.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449771/normal_5fecb243ea665.pdfIn PDF document text
    • http://cocobeautybar.ca/barbie_doll_4k_wallpaperuubzb.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/f2iaMvI/39899255176.pdfIn PDF document text
    • http://shopee24.site/roll_of_thunder_hear_my_cry_study_guidepyfwa.pdfIn PDF document text
    • https://cdn.sqhk.co/satofurijob/jgha1ig/31666451352.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377128/normal_5ff2837e9286d.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/ronenitevodo/aapl_earnings_report_date.pdfIn PDF document text
    • http://xaguxebijop.epizy.com/architect_s_studio_companion.pdfIn PDF document text
    • http://liforese.epizy.com/aplikasi_bobol_wifi_id_apk.pdfIn PDF document text
    • http://navadolaje.rf.gd/51466749658.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/cisco_ise_2._4_config_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bisapovepizaj/5343124090.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_off0000e229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE229 5332 bytes
SHA-256: 7501c8d9ad08ca4f3c7b73b109509455d20519091068d58a3c56b1fdf075b2a9
font_01_sfnt_off0000f427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF427 10760 bytes
SHA-256: d3328d60245fd485b2d8bdfb4dff9c59d1d9533196d76d99c18b4380acf28e19