Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c94a6ca71cb829a…

MALICIOUS

PDF

67.9 KB Created: 2021-02-21 14:16:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 08302d5dad08bf4b24746ea7641f28e7 SHA-1: 4d7c559f1ffb41ebf4420f104a9e6082fafc9e49 SHA-256: 1c94a6ca71cb829adc3ee7d11b0f2dbd4cd018c510f8d87a6a562af5301f5ad2
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://bologen.ru/wix?keyword=king%2527s+dark+tidings+book+4 PDF link annotation
    • http://tesidakikize.iblogger.org/bing_maps_3d_apk.pdfIn PDF document text
    • https://rigawegafo.weebly.com/uploads/1/3/4/5/134587157/botolerupikor.pdfIn PDF document text
    • https://duxuxapuxud.weebly.com/uploads/1/3/5/3/135332588/46d5e150340467.pdfIn PDF document text
    • https://vuzabevewipa.weebly.com/uploads/1/3/6/0/136087677/cb10fe57b624f.pdfIn PDF document text
    • https://cdn.sqhk.co/pojimisuso/ihQJjfo/game_launcher_icon_png.pdfIn PDF document text
    • http://noncomform.space/is_and_capitalized_in_a_titlejwwzd.pdfIn PDF document text
    • http://lady-bug.club/beard_trimmer_attachments_guidejmbqz.pdfIn PDF document text
    • http://hangookoil.ru/anandam_malayalam_movie_video_songs_free9bza8.pdfIn PDF document text
    • https://cdn.sqhk.co/mimizajig/xZgcvja/91276736005.pdfIn PDF document text
    • http://wirelessinfo.ru/hitchhiker_guide_to_pythonn4s66.pdfIn PDF document text
    • https://xuwogojike.weebly.com/uploads/1/3/1/3/131380868/getasigamejala.pdfIn PDF document text
    • https://maninidepot.weebly.com/uploads/1/3/4/7/134702581/758a77.pdfIn PDF document text
    • https://cdn.sqhk.co/fijajiles/ghiolm0/fastmed_urgent_care_west_market_street_greensboro_nc.pdfIn PDF document text
    • http://goproonly.com/17576193485cxgeu.pdfIn PDF document text
    • https://cdn.sqhk.co/wesegagage/aGjgzgd/warriors_rumors_nba.pdfIn PDF document text
    • https://nadenekaf.weebly.com/uploads/1/3/0/7/130739264/nezegeg.pdfIn PDF document text
    • https://jexujomasok.weebly.com/uploads/1/3/5/3/135343442/8415711.pdfIn PDF document text
    • http://nukels.xyz/pirates_of_silicon_valley_720p_downl0gdj5.pdfIn PDF document text
    • https://dibumofum.weebly.com/uploads/1/3/5/3/135313591/feee924498752c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cdc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC1 5256 bytes
SHA-256: e6f34bb2bf79a8e122a149adca195e2dde7865e627654d7738785f10503afdba
font_01_sfnt_off0000dfbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBF 10148 bytes
SHA-256: 4d5ae95ca8408fd86410174b819e4cf5b90331912f093a72479522de800d5891