Malicious PDF — malware analysis report

Static analysis result for SHA-256 079b3a5547027c6c…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 05:19:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f46962184c8802294d39efe79262d094 SHA-1: 93bdc5b2d139b4c27c14a9c20fe0093ebfcb6459 SHA-256: 079b3a5547027c6ce2cda5e9229d87fbd04b49ece6bf0065b112b66195674745
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • 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
  • 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/wix?keyword=minecraft+pocket+edition+0.14.1+apk PDF link annotation
    • https://cdn.sqhk.co/vitimosugu/fQCjcVr/lets_farm_hack_game.pdfIn PDF document text
    • https://rowozone.weebly.com/uploads/1/3/2/7/132740293/5101740.pdfIn PDF document text
    • https://pesawuzopedeg.weebly.com/uploads/1/3/5/3/135327269/kawaxajewoze.pdfIn PDF document text
    • https://luwozupewudaxu.weebly.com/uploads/1/3/1/3/131384663/duvogasit.pdfIn PDF document text
    • https://cdn.sqhk.co/luwibajik/f90gjH6/74010118100.pdfIn PDF document text
    • https://ginuzakonufa.weebly.com/uploads/1/3/2/6/132681862/dedebukut.pdfIn PDF document text
    • http://vugezaselefobop.iblogger.org/badshah_movie_songs_free.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/cljezjh/recarga_telcel_con_tarjeta_coppel.pdfIn PDF document text
    • https://pebujekug.weebly.com/uploads/1/3/4/3/134380671/rebovazafi_folul_xakid.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/YMIhjih/fifa_20_fut_team_creator.pdfIn PDF document text
    • https://zevakevo.weebly.com/uploads/1/3/5/4/135400716/xefikavonuzo.pdfIn PDF document text
    • http://xadimilok.iblogger.org/chaubandi_ma_patuki_full_song.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jevusox.epizy.com/74409041168.pdfIn PDF document text
    • http://rivebop.epizy.com/brisbane_city_council_parking_permit_form.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_off0000dcd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD7 5320 bytes
SHA-256: 1587c69a1966be3fbe7ad33e62e8a98dc152e067a433580b316e467d972f37d7
font_01_sfnt_off0000ef1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF1F 11052 bytes
SHA-256: aafb50b865f1f54ad8e68741c1601d2b705bfaba2ab2080e544210aa1510b09b

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