Malicious PDF — malware analysis report

Static analysis result for SHA-256 01384f3bf2e58d19…

MALICIOUS

PDF

73.8 KB Created: 2021-02-27 05:30:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 35816e819754885a6c9895df4c1c97eb SHA-1: 298facc59c80e5347b872c52fa55a3f5b09727ca SHA-256: 01384f3bf2e58d199cb8e455691b9e1e1e858356bb6d3f4337df07bdd1c78524
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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
  • 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://jumiwimov.ru/wb?keyword=how%20can%20i%20learn%20calligraphy%20for%20free PDF link annotation
    • http://vajununer.iblogger.org/chiari_malformation_symptoms_in_toddlers.pdfIn PDF document text
    • https://sefujokugitexas.weebly.com/uploads/1/3/1/4/131408298/65ae5d2c625.pdfIn PDF document text
    • https://cdn.sqhk.co/nikazurokuv/vhjaYgi/guguzemizomatifojeg.pdfIn PDF document text
    • http://pimunipimikuvaj.iblogger.org/abhishekam_movie_ringtones_free.pdfIn PDF document text
    • http://gododerur.66ghz.com/57336998858.pdfIn PDF document text
    • https://veduwasa.weebly.com/uploads/1/3/1/6/131637496/68da385b.pdfIn PDF document text
    • https://cdn.sqhk.co/dederubap/EjiIGgi/61495737783.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/gghfFnB/bandpass_filter_matlab_code_example.pdfIn PDF document text
    • https://vagobodowi.weebly.com/uploads/1/3/4/6/134600101/ad59b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://walorute.rf.gd/bawoxoso.pdfIn PDF document text
    • http://vulomalizekuvu.rf.gd/caustic_arrow_leveling_guide.pdfIn PDF document text
    • http://pikadimakezazir.rf.gd/dispatch_note_template.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/3551199748.pdfIn PDF document text
    • http://lexojowal.epizy.com/fabokaxix.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/3d_shapes_for_powerpoint_free.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_off0000e464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE464 5256 bytes
SHA-256: 88f83f9dd05393e51fc2b62f84e83d9c70b679c8bb680c779f15b6ac0229c8fe
font_01_sfnt_off0000f65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65B 10592 bytes
SHA-256: 8008e16cf236e6532fb1fbc1137675f0d17ab9438e6b4af153dacc21a9787276