Malicious PDF — malware analysis report

Static analysis result for SHA-256 966f78e84ef37545…

MALICIOUS

PDF

72.0 KB Created: 2021-02-28 07:56:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2d6778e4c9534f8ae8583d92ada92395 SHA-1: 1bc7be205ff50dba19cee9641563276f20a1f7b6 SHA-256: 966f78e84ef37545766c05191b2b16bba1c5e4418a0137be122f95474b96262f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/award?keyword=symposium+plato+amazon PDF link annotation
    • http://javaxirivibewi.mygamesonline.org/bomigojufamoxudelase.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/haier_portable_air_conditioner_replacement_hose.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/gesowusolasezusebotivipi.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/bagifojowemapa.pdfIn PDF document text
    • https://lozatovetifeg.weebly.com/uploads/1/3/3/9/133999134/bb0dc5404.pdfIn PDF document text
    • http://wogivodugakovek.mygamesonline.org/why_is_my_motorola_not_ringing.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuronufepu/ZjjKjcB/archery_battle_3d_mod_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/nuwezomu/gjfnXVS/travel_blast_puzzle_apk.pdfIn PDF document text
    • http://puzexijabin.mypressonline.com/sazibafexumiwejobix.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/first_alert_smoke_and_carbon_monoxide_detector_keeps_chirping.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/can_i_learn_muay_thai_at_home.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ralirajuz.atwebpages.com/juwonirakufubagosuleva.pdfIn PDF document text
    • http://gurokasajo.epizy.com/momugezojasa.pdfIn PDF document text
    • http://pikubub.onlinewebshop.net/75500721265.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_off0000dab1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB1 5124 bytes
SHA-256: 41927187c7ffb99c1d16c90829fb6f2ee2b7fde8a48afad82cfd6b2721d2f114
font_01_sfnt_off0000ec18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC18 12048 bytes
SHA-256: c6a0f3273aefd55875e0de9b93394216034f96b0f24091cfc400c15dc580b9c1