Malicious PDF — malware analysis report

Static analysis result for SHA-256 fffabb2e20fbb1ec…

MALICIOUS

PDF

73.0 KB Created: 2021-02-26 04:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f0dd60d204a569fa232685da4d14847c SHA-1: cec09eff328d588182c7b5d36a1367b0dcdb43eb SHA-256: fffabb2e20fbb1ece9848ca4100584ed324a07655c7541097173d635238c0f4f
186 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 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://druttle.ru/award?keyword=harry+potter+toy+castle+2001 PDF link annotation
    • http://bbcua.site/16484739613gf1yr.pdfIn PDF document text
    • https://xamoguxa.weebly.com/uploads/1/3/0/8/130874300/1110657.pdfIn PDF document text
    • https://nugobobunebiset.weebly.com/uploads/1/3/5/3/135303429/9489536.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456699/normal_5fc74a26b6132.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481695/normal_600e023dd2daa.pdfIn PDF document text
    • http://itverys.space/ana_anticuerpos_antinuclearesarzfl.pdfIn PDF document text
    • https://sokikafumuwo.weebly.com/uploads/1/3/4/6/134697409/3284146.pdfIn PDF document text
    • http://procripton.com/98678038595ypdq7.pdfIn PDF document text
    • https://gadogirunen.weebly.com/uploads/1/3/5/3/135347667/wagubosuwe-dudubikiwap-ligunezeka-dumopemorejer.pdfIn PDF document text
    • https://xomaribimufad.weebly.com/uploads/1/3/1/1/131163516/fotorupixadab.pdfIn PDF document text
    • https://tazipapanora.weebly.com/uploads/1/3/0/7/130776418/jaxavafizewek_loruvibipawovo_rekerebiru_fifukajonejo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482671/normal_60055f1bcd2f9.pdfIn PDF document text
    • https://wimavebitajiki.weebly.com/uploads/1/3/4/6/134609796/e93b8.pdfIn PDF document text
    • http://compte-cmbretagne.best/among_us_memes_youtubewzmlg.pdfIn PDF document text
    • https://suzagosezamonu.weebly.com/uploads/1/3/4/4/134446802/naliwixiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410983/normal_5fdc98433ca3f.pdfIn PDF document text
    • http://hotel-engels.ru/othello_act_1_scene_2_annotations0mo3f.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/dovulavavo/76477988005.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/77493932270.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_off0000e114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE114 5316 bytes
SHA-256: 965dff66f418e691e073c404ed24f570a09533c1215a9368174b60b86289cac3
font_01_sfnt_off0000f343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF343 10340 bytes
SHA-256: baa2d4ac48bc6d20328b3033cc849b95e4c38e7c43e7e374fb757a1afb86760e

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