Malicious PDF — malware analysis report

Static analysis result for SHA-256 93db3d0c7ece98be…

MALICIOUS

PDF

58.4 KB Created: 2021-06-03 19:49:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e19f468fdd4741bfd704bff6faadd592 SHA-1: 55be5f9dbe395a532b0c4a5dc1b87887a35b1a67 SHA-256: 93db3d0c7ece98be20d2cb77a96919b0a6626175c913c22811f86a17bcc92ce7
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains embedded URLs, one of which, https://medvor.ru/pbw?utm_term=www.+sony+crackle.com+activate, is suspicious and likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'sony crackle.com activate', suggesting a lure for account-related actions.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9646

Heuristics 4

  • 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 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
  • 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://medvor.ru/pbw?utm_term=www.+sony+crackle.com+activate
    • https://kebotufu.weebly.com/uploads/1/3/4/7/134735966/2799128.pdf
    • https://zipobirin.weebly.com/uploads/1/3/5/3/135386694/laremimile.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://gemometis.pbworks.com/w/file/fetch/144510564/gewamigazugomexikinezakaj.pdf
    • http://wuxikadafi.pbworks.com/f/gamofevijuguwakepavemevew.pdf
    • http://jijagenaneke.pbworks.com/f/mozakitedipafuxonuzurema.pdf
    • http://bujolajoxek.pbworks.com/w/file/fetch/144528609/63560820106.pdf
    • http://wufamazajo.pbworks.com/f/diviser_un_nombre_entier_par_10_100_ou_1000_exercices.pdf
    • http://kunozulig.pbworks.com/f/vixovineribevilasebafilo.pdf
    • http://gosirata.pbworks.com/f/convert_to_png_file_online.pdf
    • http://funinupun.pbworks.com/w/file/fetch/144418323/11880336402.pdf
    • http://jitilabajeko.pbworks.com/f/84679440561.pdf
    • http://pigedigasexu.pbworks.com/f/sidusuzeba.pdf
    • http://tikomegeto.pbworks.com/w/file/fetch/144566736/70032285075.pdf
    • http://tagexoba.pbworks.com/w/file/fetch/144423459/fke_kontrol_ilkokul_slayt.pdf
    • http://gemometis.pbworks.com/f/energy_and_chemical_reactions_calorimetry_worksheet_answer_key.pdf
    • http://vimadutukad.pbworks.com/f/90681094316.pdf
    • http://tarogifere.pbworks.com/w/file/fetch/144521127/is_order_number_the_same_as_confirmation_number.pdf
    • http://mikabipi.pbworks.com/f/ditojusabumud.pdf
    • http://moxulolo.pbworks.com/w/file/fetch/144475128/rubolefemitemaponuvedo.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db20.bin
eaa4a15234588164aae20d29d589c1e1594ce99eca2bacbb57ea91b35ebd4fd5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB20 5308 bytes

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