Malicious PDF — malware analysis report

Static analysis result for SHA-256 2823ba06961f90c6…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 06:06:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6d7d4d61d58479cd147417250c5122a2 SHA-1: 70b2e6ba9a1e936f8815f9fa028f643668941e4c SHA-256: 2823ba06961f90c6b1dd59c3181b5a85468459deb03aff29fd0699a6a440fc9c
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://soxebez.ru/wix?keyword=cash+receipts+journal PDF link annotation
    • http://mp4.design/faxivutididagagewediwdv0x7.pdfIn PDF document text
    • https://ditakusoboke.weebly.com/uploads/1/3/1/4/131437623/17769f181b811a.pdfIn PDF document text
    • http://triple-doska5.club/lotafivelazuvisotafb4l5m.pdfIn PDF document text
    • http://zoo-taxi.site/shadowrun_wiki_weaponspg2ic.pdfIn PDF document text
    • http://krokoboko3.xyz/merumamenemexom7dluj.pdfIn PDF document text
    • https://zesijijonade.weebly.com/uploads/1/3/0/7/130776416/saxejoj_lutosa_nuserugajive_gevax.pdfIn PDF document text
    • http://sberbank.services/30541214767zslg4.pdfIn PDF document text
    • http://moresukko.ru/bozazohtjwt.pdfIn PDF document text
    • http://tricitysikhs.com/457000376k9m9h.pdfIn PDF document text
    • https://zoseduzarososu.weebly.com/uploads/1/3/2/7/132740870/8339185.pdfIn PDF document text
    • http://spainsale.pro/modirazerojesajak9pev8.pdfIn PDF document text
    • http://gejulavofanutar.mygamesonline.org/lalupulo.pdfIn PDF document text
    • http://henrysavbr.site/the_giver_chapter_12_and_13_questions5uvot.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xomawerowikevof.rf.gd/the_thief_of_always_chapter_19.pdfIn PDF document text
    • http://zenujasope.epizy.com/call_of_duty_mobile_apk_obb_rexdl.pdfIn PDF document text
    • http://xojutavuvexiso.rf.gd/79618778169.pdfIn PDF document text
    • http://bologipegokofi.epizy.com/cooler_master_n200_micro_atx_mini_tower.pdfIn PDF document text
    • http://zumepif.rf.gd/30611414140.pdfIn PDF document text
    • http://suvalon.rf.gd/bose_qc15_headphones_review.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_off0000e176.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE176 5000 bytes
SHA-256: 1c0233d9ef82356b2b50d78d721946ab6589670ca7e8e99f55a1087fff6e4690
font_01_sfnt_off0000f271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF271 10368 bytes
SHA-256: 26de1ee97dd7972039a02fe95141b6f19bfb4d75a9778b092e888404f16c7ee8