Malicious PDF — malware analysis report

Static analysis result for SHA-256 db6849076afcc197…

MALICIOUS

PDF

71.5 KB Created: 2021-02-16 07:45:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2e85bed8d177ec6c9f593feaec0e2eeb SHA-1: dc18049bcd8abea50a9a390a0f47d7c676cd875d SHA-256: db6849076afcc1972a41b94418bb0adf0ced1b5856b53ec99cdf47ebe7cf1cd7
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://jottigo.ru/wix?keyword=terminating+decimal+worksheet PDF link annotation
    • https://cdn.sqhk.co/zurefaxenov/bNbedge/spectrobes_beyond_the_portals_card_input.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485818/normal_60259ff22fb46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420752/normal_602059a679330.pdfIn PDF document text
    • http://healthytrands.com/rca_entertainment_series_tv_manualibus7.pdfIn PDF document text
    • http://fb-ig-violation.com/les_capteurs_ccditota.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470843/normal_5fdf4e9d1f18b.pdfIn PDF document text
    • http://lezebapobal.22web.org/lumogafuni.pdfIn PDF document text
    • http://fridgeservice.ru/pafogabasajaposejakidobez7em32.pdfIn PDF document text
    • http://autoupgrade.website/historical_follower_count_twitterxdxmx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417988/normal_5fe04d0632b44.pdfIn PDF document text
    • http://sejapamuji.22web.org/maplestory_training_guide_unfunded.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/voxulija/13016134293.pdfIn PDF document text
    • http://nidudovuj.epizy.com/android_auto_2019_review.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/gdpr_letter_of_consent_template.pdfIn PDF document text
    • http://puwagof.rf.gd/phonics_lesson_plans_for_preschool.pdfIn PDF document text
    • http://novisagaxorom.epizy.com/bal_ganesh_2_songs_pagalworld.pdfIn PDF document text
    • http://kavexuvosa.epizy.com/7456308655.pdfIn PDF document text
    • http://najubizep.epizy.com/95108689293.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/ffxiv_paladin_job_guide.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_off0000d5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C1 5456 bytes
SHA-256: d82f85a4be3748485656ed9bc5fa460681727c5cb0acfcb176aeb9d1b80ad0bd
font_01_sfnt_off0000e834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE834 12504 bytes
SHA-256: 4114ed9c2c859ad479733b3e7e6966aa5c6a3c0b14e3520dad8446eecd2dfde7