Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d3e812adabffb3…

MALICIOUS

PDF

77.0 KB Created: 2021-03-11 11:19:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d0909cce17929874b7e2451b79513529 SHA-1: b662209b39219936ef3a68ac1983bf987460c2ba SHA-256: d4d3e812adabffb3028c95efe9dcb9632289e09d33fbcf53392644ee446dfced
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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=bureaucratie+is+een+inktvis+pdf PDF link annotation
    • http://help-lnstagram-verifycopyrgiht.com/97472487493mizqx.pdfIn PDF document text
    • http://penexej.mywebcommunity.org/sigodu.pdfIn PDF document text
    • http://rezltml.xyz/49571317363mcukn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419195/normal_5fc78e07b5bef.pdfIn PDF document text
    • https://wejobufobugof.weebly.com/uploads/1/3/5/3/135348322/pumasatab.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/how_old_is_google_maps_street_view.pdfIn PDF document text
    • http://gayerkan.com/2016_lexus_nx_300h_hybrid_reviewdjapb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445331/normal_60474680e8327.pdfIn PDF document text
    • http://fb-pageunderreview.com/read_dianetics_online_freev2ruy.pdfIn PDF document text
    • http://rasezatoxefu.mygamesonline.org/dante_paradiso_canto_12_riassunto.pdfIn PDF document text
    • http://reliables.ru/42464022893pkqvv.pdfIn PDF document text
    • http://pazadixokumox.sportsontheweb.net/jedew.pdfIn PDF document text
    • http://flowerport.shop/kawasaki_h2r_soundk718w.pdfIn PDF document text
    • http://sifimomikev.sportsontheweb.net/toro_lawn_mower_carburetor_repair_kit.pdfIn PDF document text
    • https://laxivaxof.weebly.com/uploads/1/3/0/8/130874385/3826f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387586/normal_60481c3b1d25b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391925/normal_5ff4de2ee15e1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486965/normal_5ffe79eed7316.pdfIn PDF document text
    • https://kufojinelimipi.weebly.com/uploads/1/3/0/7/130776518/buruji.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://sabixukavizom.myartsonline.com/fender_super_champ_xd_owners_manual.pdfIn PDF document text
    • http://fazaburifug.myartsonline.com/95783429424.pdfIn PDF document text
    • http://nukilaba.myartsonline.com/52278528928.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE495 5060 bytes
SHA-256: f78478f1597c3813f13a1dc147200ec8f097ff5b0f308b143003902cdef44100
font_01_sfnt_off0000f5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E2 10124 bytes
SHA-256: e85ce68728009dd98420374062861d68adc1c5f9efff5e63ae1c6d03573471c3
font_02_sfnt_off000117db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117DB 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176