Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ccf07baf1d16937…

MALICIOUS

PDF

72.6 KB Created: 2021-03-01 22:55:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d48fbe884a728553a849f032fff98e51 SHA-1: a683eede83328adf2a01c0df3dc9e3537d1b0a9c SHA-256: 7ccf07baf1d16937eaf69ffc2dc48946b10a8c4191b1ebda2ab2d49d158ad822
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/wix?keyword=nba+2k16+apk+download+ios PDF link annotation
    • https://lurufakezudaka.weebly.com/uploads/1/3/4/8/134884294/65a0267.pdfIn PDF document text
    • https://zabaparadasikid.weebly.com/uploads/1/3/4/3/134317604/moxezonopum-rujok.pdfIn PDF document text
    • https://kepiloxuxamife.weebly.com/uploads/1/3/0/7/130740378/wazijigodidor.pdfIn PDF document text
    • https://zuseluxutiv.weebly.com/uploads/1/3/4/6/134686448/9171d8ca29706.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471985/normal_600ee4e779055.pdfIn PDF document text
    • https://nadenekaf.weebly.com/uploads/1/3/0/7/130739264/demajuzasupa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474445/normal_60199f8a39481.pdfIn PDF document text
    • http://supariwepexafat.mywebcommunity.org/tapelitavininujajivolajeb.pdfIn PDF document text
    • http://maladametugal.iblogger.org/how_can_i_make_money_from_home_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445340/normal_5fd7c423bcc9f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://visasefiji.rf.gd/56127301686.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/cazadores_de_sombras_2_pelicula_completa_en_espaol_online.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2FD 5048 bytes
SHA-256: 85810a3583edb1cf2408d9325fc598726845de4782bb3dc5da571a985eaa5f9a
font_01_sfnt_off0000e43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43C 10460 bytes
SHA-256: 7bfaeb56f36a774cdda459744a7214f795432d0092d5f6a3de1010d248df4714
font_02_sfnt_off000107f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F2 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3