Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2be166beb54c0ae…

MALICIOUS

PDF

71.2 KB Created: 2021-01-26 08:57:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 01a7d0ab32f2dca932b61d4a7007a192 SHA-1: 78caf16045aacd82c89bc0371a9ebf559047322d SHA-256: e2be166beb54c0ae6aea950eeda804307a0138fa2670f4a050a38533923cde35
192 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/aws?utm_term=game+aoe+1+full+mien+phi In PDF document text
    • http://fherixq.com/bovopapedobelezwznmh.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/7oVhfgf/53835943243.pdfIn PDF document text
    • https://cdn.sqhk.co/nolagutotato/RouIlif/17481506071.pdfIn PDF document text
    • http://wurijudopala.22web.org/81401277824.pdfIn PDF document text
    • https://sanexopapodepal.weebly.com/uploads/1/3/0/7/130739353/tumur-komitujas.pdfIn PDF document text
    • http://torchland.xyz/energy_joe_mod_apk_rexdl6xenk.pdfIn PDF document text
    • https://nojezedefefowas.weebly.com/uploads/1/3/4/7/134762002/nuroxepevix.pdfIn PDF document text
    • https://cdn.sqhk.co/kesusevuzep/Nicihgh/gosuxutotinutifaveduwato.pdfIn PDF document text
    • http://xowozumevabig.66ghz.com/44851962394.pdfIn PDF document text
    • http://bakelenodizaro.iblogger.org/virginia_corporation_bylaws_template.pdfIn PDF document text
    • http://poradoit1.site/ufc_fight_tonight_free_onlinedx5v3.pdfIn PDF document text
    • https://gapidekejoz.weebly.com/uploads/1/3/4/8/134876705/6912941.pdfIn PDF document text
    • https://cdn.sqhk.co/zurefaxenov/3gjxsZk/metal_slug_code_j_apk_uptodown.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wepaxilex.epizy.com/temario_auxilio_judicial_adams.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/mazuzamupoxe.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/gantt_chart_template_word_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/ccs_university_exam_form_for_bba.pdfIn PDF document text
    • http://pejinubonuxus.epizy.com/kilodimugepiwezizeboten.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_off0000db0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB0E 4948 bytes
SHA-256: 35ce3c545c565a287b4880b1a2c67c2245fb2f8e707282000112dffe47d24b1e
font_01_sfnt_off0000ebce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBCE 10580 bytes
SHA-256: 08963ccf271b6bbba9391819217000ab70e3787db042287ed7f9e84475d22281

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