Malicious PDF — malware analysis report

Static analysis result for SHA-256 a07b1b13d9e81104…

MALICIOUS

PDF

67.0 KB Created: 2021-02-10 13:56:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 383cfe4cd03cc32bfcbeaf49570f6e72 SHA-1: 521c95d1d0ed7b12a15d8c1a294d9d62e37ce069 SHA-256: a07b1b13d9e811045150e8c880ab85c3871047c9b71834593708ec554e300deb
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://jottigo.ru/wb?keyword=bollywood%20song%20lyrics%20video PDF link annotation
    • https://cdn.sqhk.co/zofagopipowi/1geDjjx/virtual_grandmother_simulator_happy_family_life_jw._org.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471703/normal_5ff00739e3981.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_6019b1ceae665.pdfIn PDF document text
    • https://zizeximafebofiz.weebly.com/uploads/1/3/4/3/134369397/zupururituvuze.pdfIn PDF document text
    • https://visofamawuri.weebly.com/uploads/1/3/2/3/132303269/de5e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445745/normal_5fe6c8cbdfdc1.pdfIn PDF document text
    • http://baugroup.info/resojagalonbq0eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455659/normal_601f6c5482734.pdfIn PDF document text
    • https://cdn.sqhk.co/rivogigaweb/icLjdgj/5275641457.pdfIn PDF document text
    • http://interbank.link/geguburevehg4a.pdfIn PDF document text
    • http://hhizmet.com/galaxy_smartwatch_reviewwtenc.pdfIn PDF document text
    • http://ijmalan.xyz/the_america_s_test_kitchen_quick_family_cookbookjodx0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471109/normal_5feb80fcb0486.pdfIn PDF document text
    • https://cdn.sqhk.co/kisesawaropo/jdidOjf/54972684890.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jufosuliz.epizy.com/53697311088.pdfIn PDF document text
    • http://waboxizolomove.rf.gd/mandated_reporting_elder_abuse_pennsylvania.pdfIn PDF document text
    • http://mutidulofof.epizy.com/guillotine_game_the_french_revolution_answers.pdfIn PDF document text
    • http://karifopiti.epizy.com/award_border_template_word.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_off0000c7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7D5 5200 bytes
SHA-256: 6cab7fc4bbbf4dad8700b9b35877ae265f623fb69ec425b9b788a3e3b043cc3c
font_01_sfnt_off0000d9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BC 10452 bytes
SHA-256: 5d822ee43b31d3175d363b61c50e4dd7ff53fdd3a6a52682c4e086faa4a0f459