Malicious PDF — malware analysis report

Static analysis result for SHA-256 66744ca54734cc7c…

MALICIOUS

PDF

72.7 KB Created: 2021-03-01 12:47:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: f6c2d4e9f7209860c2200b67a3c71c26 SHA-1: fe8e92aae2c3d0608c9a81dbe2cb3d5a4aff0e0d SHA-256: 66744ca54734cc7c73cd44b697dc352d9a9974229d84f88eb235f17fb7db5c4a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with one specifically pointing to a search result for 'netgear wgr614v9 reset button'. This suggests a lure to trick users into visiting a potentially malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

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://jacksth.ru/award?keyword=netgear+wgr614v9+reset+button PDF link annotation
    • http://mini-cam1.club/mukelukobitonuforutaseva0fsu3.pdfIn PDF document text
    • https://tipureroxagojox.weebly.com/uploads/1/3/6/0/136096040/gopir.pdfIn PDF document text
    • http://pedalini.club/pavuvotovaxuduxugen06ni.pdfIn PDF document text
    • https://xoboxevoz.weebly.com/uploads/1/3/2/7/132740619/6735167.pdfIn PDF document text
    • http://netabemoli.22web.org/small_business_job_titles_list.pdfIn PDF document text
    • http://frut-tree.site/deep_fitted_sheet_double_whiten6wxa.pdfIn PDF document text
    • http://tularafujebok.iblogger.org/chinese_drama_series_free.pdfIn PDF document text
    • https://rezilatepupegox.weebly.com/uploads/1/3/5/3/135318796/govopoz_sojutarukedos_rewunurerapa_mafisepor.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/little_red_hen_bakery_fairmont_wv.pdfIn PDF document text
    • https://fudanologakobur.weebly.com/uploads/1/3/5/3/135394175/vuboseko.pdfIn PDF document text
    • https://sitimewodojex.weebly.com/uploads/1/3/1/8/131856527/fasipesexetuba-tezegefodulopu.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/86763218948.pdfIn PDF document text
    • http://theandyhong.com/romafolqlxtf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fojosotum.myartsonline.com/what_do_monat_reps_make.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/65615992607.pdfIn PDF document text
    • http://serobamemesazan.rf.gd/cccam_2._2._1_ipk_openatv.pdfIn PDF document text
    • http://ligujizulogi.atwebpages.com/orc_mount_trainer_bfa.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_off0000df17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF17 5532 bytes
SHA-256: 232779344befe934f21b4347839130b72ef99917cd4553739012ac935859e2e3
font_01_sfnt_off0000f227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF227 10396 bytes
SHA-256: 834efc4c5c8f33dbaaaa88acc66741434bf2d7491151b7782293f4f6bd03a475

Open this report in the interactive analyzer, or submit your own file for analysis.