Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94b19996439cd0b…

MALICIOUS

PDF

72.7 KB Created: 2021-02-21 06:17:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ce70e1b0c83c8b6dec8451f263ada06b SHA-1: 06aa93bba2938de6009d491787ff508054551adc SHA-256: e94b19996439cd0b1aeef2df5c19512037635bc2188d0d3035c791612e86ca3f
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • 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://maypoin.ru/wix?keyword=the+fix+season+2+cancelled PDF link annotation
    • https://cdn.sqhk.co/sobexofap/i3qTMLW/sunrace_mx_9_xd_cassette.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420019/normal_5fc834b6039e1.pdfIn PDF document text
    • https://cdn.sqhk.co/zesonixiv/shbOjah/my_land_matters.pdfIn PDF document text
    • https://gamabisage.weebly.com/uploads/1/3/2/6/132681080/mogiwilowubosuxu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481675/normal_5fc9e86b4443e.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxaletadi/1zjchdi/maratamivo.pdfIn PDF document text
    • http://bobatukuxoto.iblogger.org/migemadibud.pdfIn PDF document text
    • https://pukogapuwobar.weebly.com/uploads/1/3/4/3/134307851/ffcfd214281e5.pdfIn PDF document text
    • https://cdn.sqhk.co/woberimi/gabiahf/lego_marvel_superheroes_2_switch_walkthrough_underwater.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478422/normal_5fcf51b354739.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500668/normal_5fefec21c121b.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/j2hiriZ/masha_e_o_urso_desenhos_novos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376096/normal_5feec3e9252c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408002/normal_5ff365944f5f6.pdfIn PDF document text
    • https://govewusig.weebly.com/uploads/1/3/0/9/130969429/7221eab2d7b4.pdfIn PDF document text
    • https://fewugoxozo.weebly.com/uploads/1/3/4/4/134441687/2228b13.pdfIn PDF document text
    • http://mukesuzovuvo.22web.org/mafijexut.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tikarere.epizy.com/45161000295.pdfIn PDF document text
    • http://dezabefuzureb.rf.gd/action_bar_menu_android_studio.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_off0000dfc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC8 5160 bytes
SHA-256: 20b1cd4e551f44655cb03f7ca045fc9984794a2271b32b44b3842a225e95a601
font_01_sfnt_off0000f15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15E 10484 bytes
SHA-256: 5ebd522d188a9670bf6235fc9cb7672f4974c028aa411c540120ebbeb1df80a9