Malicious PDF — malware analysis report

Static analysis result for SHA-256 604c172061d9a931…

MALICIOUS

PDF

89.5 KB Created: 2021-02-02 06:43:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d5c210d6903e6b6f955fb06e765bb322 SHA-1: 5ccea9661b8566d2832e8c4ef88ac2e4de310167 SHA-256: 604c172061d9a931cd32934c31327911a006f18a438bb96743cac3dea12cae11
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/wb?keyword=bugs%20bunny%20spy%20cartoon%20characters PDF link annotation
    • https://cdn.sqhk.co/kavejufa/bmECOib/colleges_with_petroleum_engineering_majors_near_me.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454424/normal_60177038afe43.pdfIn PDF document text
    • http://metalllift.ru/aladdin_broadway_musical_scriptt34wn.pdfIn PDF document text
    • https://cdn.sqhk.co/nepodowu/jbggXjc/41824396961.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468534/normal_5fd083543c64a.pdfIn PDF document text
    • http://leomannapov.com/mosixz7ypz.pdfIn PDF document text
    • http://lunowizu.iblogger.org/gakugagolugigadumugodor.pdfIn PDF document text
    • http://lowazaz.22web.org/abaddon_dotabuff_guide.pdfIn PDF document text
    • https://nubipudovolena.weebly.com/uploads/1/3/4/0/134012318/zorajuvexipizotiji.pdfIn PDF document text
    • https://pebabole.weebly.com/uploads/1/3/4/6/134698512/9596637.pdfIn PDF document text
    • http://liolika-rsya.ru/68745494275qtjs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sezulezaba.rf.gd/gudujasajifexojazami.pdfIn PDF document text
    • http://nipixexit.rf.gd/avast_antivirus_uninstall_software.pdfIn PDF document text
    • http://beninoduvewer.epizy.com/tnpsc._gov._in_answer_key.pdfIn PDF document text
    • http://rubabup.epizy.com/2910093158.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_off00012186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12186 5452 bytes
SHA-256: 128d534345ed36b2436709d3b3d1966a1ee420b1b0169da2b09f6a9f804724e2
font_01_sfnt_off00013417.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13417 10784 bytes
SHA-256: 2fe0e1257f86a5e7460e3db1fb07b0a7d76422782c3adcda4f21424b660804fc