Malicious PDF — malware analysis report

Static analysis result for SHA-256 b890315a4e1ed297…

MALICIOUS

PDF

68.1 KB Created: 2021-02-13 04:44:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 37ce42f652189a01242b61fb64f2440c SHA-1: 9c52d4a058acc749c58ff76118d0f95439e3db4c SHA-256: b890315a4e1ed297e3ab697cef232cab27c9d880c242ba77d645a2053663b186
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=audrey+mack+ministries PDF link annotation
    • http://risurevisawibe.iblogger.org/poxigewomidilekixu.pdfIn PDF document text
    • http://dodapim.22web.org/14047176058.pdfIn PDF document text
    • http://bufo.online/bubapuleguworibogw7rz.pdfIn PDF document text
    • https://famalekirujapa.weebly.com/uploads/1/3/1/4/131453917/72965bbddebb2b.pdfIn PDF document text
    • https://cdn.sqhk.co/pevejotomoma/jiIUUhe/befenipikevosokovoniliri.pdfIn PDF document text
    • http://xugejanakumeder.iblogger.org/ripixamukusotujulov.pdfIn PDF document text
    • https://cdn.sqhk.co/tikisudolo/cjg9Cjd/rixijinizeluwetex.pdfIn PDF document text
    • https://cdn.sqhk.co/xurazegoba/9ighge3/great_little_war_game_2_apk_full.pdfIn PDF document text
    • http://papotupeti.iblogger.org/75948911728.pdfIn PDF document text
    • https://cdn.sqhk.co/woledowo/hbbpjaL/hsl_recliner_chairs_and_sofas.pdfIn PDF document text
    • https://cdn.sqhk.co/giwibilawa/bhchijj/archer_season_11_episode_3_synopsis.pdfIn PDF document text
    • https://cdn.sqhk.co/kewukapugino/ihdghjn/retro_traffic_racer_most_challenging_racing_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://temefolix.epizy.com/1857390044.pdfIn PDF document text
    • http://xuletesowugi.epizy.com/deretarepizajebonomapef.pdfIn PDF document text
    • http://wubogijogazerew.epizy.com/bandlab_mastering_apk.pdfIn PDF document text
    • http://toramowajo.epizy.com/medicare_guidelines_for_diabetes_screening.pdfIn PDF document text
    • http://girinuluzu.rf.gd/avadh_assam_express_delhi_platform_number.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC208 4980 bytes
SHA-256: ca1ef380b31c5593555c85b905ea19a222b6b34107274ceeec42fbd3fd0382b6
font_01_sfnt_off0000d2d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D7 10156 bytes
SHA-256: 1d7b67ff108317453c0af536cbbe865c479524bef2bc76fb61d89420e72d0493
font_02_sfnt_off0000f597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF597 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361