Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f26fdd4bffddf7…

MALICIOUS

PDF

74.0 KB Created: 2021-02-03 00:15:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: bb1ffabbe0f3a545a95b279ea06d7a89 SHA-1: d1ecd28779a8bdcf96448018d26147323edda772 SHA-256: 92f26fdd4bffddf7349855e4af6ecfd8aec471a7f7906ae6b826d1b630c6431f
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://druttle.ru/123?utm_term=beyond+the+diet+meal+plan+app PDF link annotation
    • https://kijabejinal.weebly.com/uploads/1/3/0/9/130969506/8395538.pdfIn PDF document text
    • https://letezinujafi.weebly.com/uploads/1/3/4/9/134901841/2985708.pdfIn PDF document text
    • https://zuxogujuwikowe.weebly.com/uploads/1/3/0/9/130969390/jivotimulunofa-dirudivekat-xawaribob-fogubuduresar.pdfIn PDF document text
    • https://jojurofi.weebly.com/uploads/1/3/4/6/134666092/nowanexaporad.pdfIn PDF document text
    • https://beripoxepi.weebly.com/uploads/1/3/5/3/135325525/pisitawemalefodopag.pdfIn PDF document text
    • https://cdn.sqhk.co/jetirivotu/gfHhjE4/pro_mx_3_mod_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/vekokoze/s5hfzja/25816406928.pdfIn PDF document text
    • https://sevezumu.weebly.com/uploads/1/3/2/7/132710575/6013718.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/jiPBjdk/tataxafemidifutigupevud.pdfIn PDF document text
    • https://cdn.sqhk.co/bijilixiger/fjj1jaW/centris_near_me.pdfIn PDF document text
    • https://dexazime.weebly.com/uploads/1/3/1/4/131437554/dc5e9.pdfIn PDF document text
    • https://suzefajadovu.weebly.com/uploads/1/3/4/5/134592553/7263173.pdfIn PDF document text
    • http://meboxofunufox.iblogger.org/lagu_dj_cinta_luar_biasa_uyeshare.pdfIn PDF document text
    • https://jimivisimobud.weebly.com/uploads/1/3/4/9/134901817/nazaziso-xigobonurode-rereb-besen.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/posaxugidut/18218874312.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/gobizimelozifibedokovezas.pdfIn PDF document text
    • http://luzawuwu.epizy.com/reference_list_apa_6th_edition_format.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/lugezojirarulazaxas.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_off0000e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE551 5076 bytes
SHA-256: 4ef9877f99eba6b43d797a698765a850b3ef44c23d7d3fbb8a9349145eecf8ec
font_01_sfnt_off0000f677.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF677 10796 bytes
SHA-256: e68dbd26600c29d35dacdaa5fb1c89b83c38fb5c150e05d8c75b7e9a7b90f76f