Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f2630bfcf51867…

MALICIOUS

PDF

71.3 KB Created: 2021-03-03 12:40:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1352ba5af3099ec2086c63e0bc8985e0 SHA-1: 40cb7578b2018707a9ebfa6e329d4d2605b9817c SHA-256: f0f2630bfcf518671e4ae36006b680894325a17fc71bb0b9dd65f6ca8ffa20c0
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://xezojetit.ru/award?keyword=ridgid+3000+psi+pressure+washer+wand PDF link annotation
    • http://rexonina.medianewsonline.com/how_to_use_schumacher_battery_charger_se-82-6.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/4798891188.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371267/normal_5fee6aa4cec49.pdfIn PDF document text
    • https://webuwoterin.weebly.com/uploads/1/3/4/5/134589655/jozatavolu.pdfIn PDF document text
    • http://jawixogu.mygamesonline.org/38961697387.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469101/normal_601a67b0831df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402280/normal_6031ca010994a.pdfIn PDF document text
    • https://demijogukif.weebly.com/uploads/1/3/1/3/131382539/5049512.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374699/normal_5fed69ca54595.pdfIn PDF document text
    • https://ginufadep.weebly.com/uploads/1/3/4/6/134668932/c5323f4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410414/normal_5ff13c906b4c0.pdfIn PDF document text
    • https://mimasalidapu.weebly.com/uploads/1/3/4/4/134466186/f41180bd910.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pojozija.onlinewebshop.net/is_it_legal_to_marry_two_wives_in_australia.pdfIn PDF document text
    • http://juxudawalugevop.epizy.com/chaahat_movie_in_480p.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/netgear_ac1900_or_ac1750.pdfIn PDF document text
    • http://sefukapa.epizy.com/laboratory_assistant_interview_questions_and_answers.pdfIn PDF document text
    • http://walaratetev.epizy.com/gazidijuzanewo.pdfIn PDF document text
    • http://tafiwepamubov.atwebpages.com/gigirogu.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_off0000d884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD884 5596 bytes
SHA-256: aeb04fd6bb7d8f827e74051a0a1e94a3719fb3a0e8c359f15aa4b004168a9d40
font_01_sfnt_off0000eba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA3 10644 bytes
SHA-256: 2d4ec35f0aba505e62ca1154df6d8a407be0a2dc8cb8224961eb40129593ca4b