Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd2ac1142f088330…

MALICIOUS

PDF

74.8 KB Created: 2021-03-04 04:10:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f07507af47d3df8d9149a716fe8d6d33 SHA-1: a90a9bdee006c5dde8fa598d5c078dec7524568f SHA-256: fd2ac1142f0883300b02d4401238810a925e3f25406a8bfc4cf5efedfcf94260
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://golowaki.ru/award?keyword=how+to+unlock+a+frigidaire+stackable+washer+dryer PDF link annotation
    • http://xuwuvewisin.mypressonline.com/vamenaxakan.pdfIn PDF document text
    • http://zakomuxoza.getenjoyment.net/26582563032.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/38210380997.pdfIn PDF document text
    • http://atlas-copco.su/psychological_testing_book_kaplandtiao.pdfIn PDF document text
    • https://cdn.sqhk.co/wasefago/ehdghjj/snakehead_fish_central_park_burnaby.pdfIn PDF document text
    • http://tumuduwaju.mypressonline.com/4th_grade_multiplication_word_problems_grade_4.pdfIn PDF document text
    • http://nukels.xyz/buck_converter_switching_waveformsmm37b.pdfIn PDF document text
    • http://getsalle.xyz/how_to_get_rid_of_a_tanning_bedv6qqd.pdfIn PDF document text
    • http://vorecan.fun/biroxumen935rq.pdfIn PDF document text
    • http://rijewomel.scienceontheweb.net/adonis_golden_ratio_training_program.pdfIn PDF document text
    • http://dududuw.mypressonline.com/rebecca_by_daphne_du_maurier_full_audiobook_free.pdfIn PDF document text
    • http://pribor-poverka.site/fafasopukazojuli4npbe.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/digital_marketing_bsc_london.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tojederetesez.epizy.com/dopuloxutis.pdfIn PDF document text
    • http://tarinag.epizy.com/flannel_sheets_sets_king_size.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_off0000e7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BC 5640 bytes
SHA-256: df9433e3c6d9982cfe614843f00ece0e8e4dc95a83adb1decf00d2d38622be99
font_01_sfnt_off0000fb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0A 10200 bytes
SHA-256: 32f958be54bed52520142b66a70da5942e07c8cf396768e133fc761b8fa33623