Malicious PDF — malware analysis report

Static analysis result for SHA-256 367363c5d0011741…

MALICIOUS

PDF

74.0 KB Created: 2021-02-13 08:37:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 10e679c2bbab02a676be960e1b57ee4b SHA-1: 72518cd51e7184f485de8095a92e6ce303a32e0a SHA-256: 367363c5d0011741f65dc4742ae92e83e68e479fed11a3a42a11471cba6b857e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • 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://baarspo.ru/aws?utm_term=aqa+gcse+physics+exam+style+questions+answers PDF link annotation
    • https://duditoza.weebly.com/uploads/1/3/2/3/132302736/wijapuv.pdfIn PDF document text
    • https://leditolovon.weebly.com/uploads/1/3/2/6/132682688/a6ed1.pdfIn PDF document text
    • https://budigalaxob.weebly.com/uploads/1/3/5/3/135313384/4953796.pdfIn PDF document text
    • http://eagleaff.com/mars_weather_factsi0spd.pdfIn PDF document text
    • https://wakukaxowemaba.weebly.com/uploads/1/3/5/3/135303752/9147492.pdfIn PDF document text
    • https://jukamonasob.weebly.com/uploads/1/3/0/7/130740128/fepudodotoso-reneluxil.pdfIn PDF document text
    • https://bevowodawalejap.weebly.com/uploads/1/3/4/3/134363876/ed5a2.pdfIn PDF document text
    • http://magnitoli-2ekran.site/fedoxojufhcah.pdfIn PDF document text
    • http://powodazezikak.iblogger.org/dunutixawuvarijiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403563/normal_5fe66a38c5796.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402501/normal_5fe74e787379a.pdfIn PDF document text
    • http://jenirafona.22web.org/blank_sheet_music_template_for_word.pdfIn PDF document text
    • http://bigno.space/after_night_font_freezi0xw.pdfIn PDF document text
    • http://blubadgehelp.net/textos_em_ingles_para_6_anobkbys.pdfIn PDF document text
    • https://lazekikobetilof.weebly.com/uploads/1/3/4/4/134443651/77506.pdfIn PDF document text
    • https://rinavufapakoto.weebly.com/uploads/1/3/4/4/134460237/fexasuva-somimezugovozud-repewejusoz-sokifewonu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rusuxipek.rf.gd/felunixu.pdfIn PDF document text
    • http://sirirowevaga.rf.gd/xowenukipudopojiminivoba.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_off0000e220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE220 5724 bytes
SHA-256: 6aab3ae2911f2cf5bd0201dea6d0985263a9fedfc0142b2bedd0f2282f171f0e
font_01_sfnt_off0000f593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF593 11052 bytes
SHA-256: 99666f4d0a22586f379e27ef0b6809353a2b05f7a4dd065dddd9fe30b57e4963

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