Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f627840a3481959…

MALICIOUS

PDF

104.4 KB Created: 2021-05-11 23:43:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6fd7f9dc424bb6cd734c995430c7f3bc SHA-1: b0a4ecc0607d35c133a45317b114794b5feff48c SHA-256: 6f627840a348195946b0a214c27282951192bbcf9e8acd9c80fd9d58e4dea07d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kuzutuzo.ru/strik?utm_term=momo+michael+ende+german PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4503387/normal_5fd99e17108e7.pdfIn PDF document text
    • https://cdn.sqhk.co/muwupajikaro/Fgjjhgj/happy_upbeat_instrumental_music.pdfIn PDF document text
    • https://cdn.sqhk.co/bejamisokepu/j2jjcgi/85640911667.pdfIn PDF document text
    • https://cdn.sqhk.co/zubixola/Xgigf3C/livova.pdfIn PDF document text
    • https://cdn.sqhk.co/momujolo/idRoYbv/polumawerexozovupawavas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488141/normal_5fc95b5476802.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/iflJjh7/iphone_xr_black_friday_deals_2019_apple_store.pdfIn PDF document text
    • https://cdn.sqhk.co/xexanodu/VTbiejg/wallpapers_hd_pinterest_pc_dark.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_601378fb69b00.pdfIn PDF document text
    • https://cdn.sqhk.co/jebavimot/cuu2YDg/world_bowling_championship_2019_wiki.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421466/normal_5fc886d8a03aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488809/normal_60542231c6d13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490365/normal_6029a4b50a8c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_603fa5ee3336c.pdfIn PDF document text
    • https://cdn.sqhk.co/laruxibut/h0dnib7/19876218851.pdfIn PDF document text
    • https://cdn.sqhk.co/xederebat/iejcohf/werixidanebepoma.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/RU8jd0T/infinite_painter_for_windows_10.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/gifiz/city_map_for_minecraft_pe_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/platform_base_bed_frame_king.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/avast_internet_security_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/kalafujotajujalutike.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/retexepopetugaxuxegov.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14542 5180 bytes
SHA-256: 30ffb6226da12e37c8aa613eb15782d42e8afcb43baca71719436f702d8efdb4
font_01_sfnt_off000156bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156BD 12140 bytes
SHA-256: d9b34246559bf148d26c064106a3deca4a33c794289c33e297ecc8a531757d8a
font_02_sfnt_off00017ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EE0 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e

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