Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1791696f740f86d…

MALICIOUS

PDF

82.8 KB Created: 2021-03-06 03:09:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cd383a21b362633570f21c9a7f462d7a SHA-1: 2abcab3bd32c527b3d21221dcf150091c10a2e06 SHA-256: a1791696f740f86d3dea8e5d23589d44ecbd2142466174d82204bc776fc0cfff
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wix?keyword=minecraft+1.8+9+forge+not+working PDF link annotation
    • https://cdn.sqhk.co/nomitusibop/ji0DgdK/41892077105.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/DLAgj5Y/totuzafukiwimogoruwurut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460709/normal_600e30b725bc4.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/f4Xjiib/uefa_champions_league_2020_schedule_download.pdfIn PDF document text
    • https://cdn.sqhk.co/niwuruba/YEjfgcy/sololearn_learn_to_code_for_free_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492278/normal_6003b66c96da9.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/Jhfkhdv/93575274372.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483072/normal_602ae71479252.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/zewimu/running_strength_training_program.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e2183bb-e531-4a00-8dfd-70e3b21511c1/33406213389.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/camera_raw_canon_7d_mark_ii.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/afro_beats_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lemefofutomapox/calendar_2019_november.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/13288228495.pdfIn PDF document text
    • http://jadupapobixe.epizy.com/sojofu.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/guvowobupodipejevumufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/346e32b3-e664-40e5-b3d5-cb1d0355a3e7/mechanical_engineer_salary_virginia.pdfIn PDF document text
    • http://sonasekofuxix.rf.gd/sumepuvevadirofelelu.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/aakasha_ganga_audio_songs.pdfIn PDF document text
    • http://zasegusof.epizy.com/82062553240.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/8980332177.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f75a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75A 5432 bytes
SHA-256: 0f71a7973fe2af42989ec88b84a319d9a20bd11842c3bfbdf51b0f73be39e134
font_01_sfnt_off00010a21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A21 15872 bytes
SHA-256: 3f1d35fbf632fb80fc53ea330193e6ef46a4acec0273ed85075526b83fc180ac

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