Malicious PDF — malware analysis report

Static analysis result for SHA-256 26b3c072af6b3feb…

MALICIOUS

PDF

67.5 KB Created: 2021-02-25 16:10:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e22d4a34b394201efe6324910ffc495c SHA-1: 8d0ed8dc73e4f7d0734185e7d581b8f0c1073030 SHA-256: 26b3c072af6b3febec8f6c1f33ee9bbc5e0cba7c7f1614f5247d528256398e84
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=pre+algebra+final+exam+with+answers PDF link annotation
    • http://nopotaz.medianewsonline.com/disability_support_pension_increase_march_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/dimowitop/0hcgjUl/jumpstart_academy_kindergarten_reviews.pdfIn PDF document text
    • https://mejodedasebedo.weebly.com/uploads/1/3/4/7/134725949/2374183.pdfIn PDF document text
    • http://jorowijedo.mywebcommunity.org/tuposomonuduvas.pdfIn PDF document text
    • http://fibilif.iblogger.org/wuzafobimiga.pdfIn PDF document text
    • http://rudajudo.iblogger.org/anti_social_social_club_sizing_guide.pdfIn PDF document text
    • http://amsidisi.xyz/xabozodapalevasejeeogp.pdfIn PDF document text
    • https://newimogo.weebly.com/uploads/1/3/1/0/131070302/rorad.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/weniwirosites.pdfIn PDF document text
    • https://bagobizofenagex.weebly.com/uploads/1/3/4/7/134767931/puniwusanugoj-juketitazew-giteri-dosobesisuw.pdfIn PDF document text
    • http://bcipreactivaperu.com/a_dolls_house_short_summary_in_tamil8bkx8.pdfIn PDF document text
    • http://rubisteq.online/2739022366377m6k.pdfIn PDF document text
    • http://nafugelinev.iblogger.org/navigateur_web_leger_android.pdfIn PDF document text
    • http://usechambre.xyz/aaron_smith_dancin_krono_remix4t2zs.pdfIn PDF document text
    • http://noverst.xyz/temporalmente_suspendido_de_juego_coptued.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/qojgrhf/wehrmacht_uniform_roblox.pdfIn PDF document text
    • https://javudufopatoka.weebly.com/uploads/1/3/1/6/131606124/malititoxubedo_zokedaw_minafuvu_sigiwiwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ginowane.onlinewebshop.net/encyclopedia_judaica_vol_2.pdfIn PDF document text
    • http://vezexosewomex.epizy.com/3149325.pdfIn PDF document text
    • http://dakafatuvuguviz.atwebpages.com/lekifo.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_off0000ca97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA97 5480 bytes
SHA-256: 48ac1882b050b262c7deb901c69f87746a97aac88530691c74f85dcb527dbb66
font_01_sfnt_off0000dd2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD2B 10464 bytes
SHA-256: b031544315705cf1145f39ba512629657663ab9248a6b409e43a63f38ff90e97