Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4f897f1745d3a6b…

MALICIOUS

PDF

84.8 KB Created: 2021-04-09 18:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9db29f19cd713b2eb7d9c6fab0e30be9 SHA-1: c651ff976febe1e0032e014b221e73611f3a83da SHA-256: b4f897f1745d3a6b6943093e0a8613ba42416d576733c743f0b3a03c64769c6c
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 0.9955

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://gimoguvi.ru/strik?utm_term=what+size+is+32+in+men%2527s+jeans PDF link annotation
    • https://cdn.sqhk.co/luzigagoguna/cS9Mif3/dragon_lord_skyrim_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/ranotigu/Rhb63UF/tolomigajepalifupilulobew.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/basic_formulas_for_aptitude_test.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530171/normal_6062818faf28c.pdfIn PDF document text
    • https://cdn.sqhk.co/vofepubot/9yjiKpc/43172173559.pdfIn PDF document text
    • http://copyrightnotice-ig.com/lavuzazewos7t2zf.pdfIn PDF document text
    • http://myirn.icu/navoterexoh9e4x.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415934/normal_6041d9e53172e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468268/normal_600efb0eb9ef5.pdfIn PDF document text
    • http://keepmaxi.space/word_attack_two_player_gamescnko3.pdfIn PDF document text
    • https://cdn.sqhk.co/bemaxopig/zigiDzd/siwakaneb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490736/normal_5fd13779264d4.pdfIn PDF document text
    • http://bupitubegedew.getenjoyment.net/57641300387.pdfIn PDF document text
    • http://sepukolobu.sportsontheweb.net/auditing_and_assurance_services_16th_edition_solutions_manual_free.pdfIn PDF document text
    • https://cdn.sqhk.co/wogefosa/cjhgjJW/digobu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373776/normal_5fd79e38a5e55.pdfIn PDF document text
    • http://nurokojo.mypressonline.com/7_split_merge_portable_2._0._4._112_free_download.pdfIn PDF document text
    • http://sedouche.xyz/gewawagodzuhk2.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
    • https://s3.amazonaws.com/nijudow/guidera_o_connor_website.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/doxikijolujitinumu.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/kadopaxobovagopoxi.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/autocad_2018_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/12896873067.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/72824843174.pdfIn PDF document text
    • https://s3.amazonaws.com/rivazixexuguri/37587183378.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/how_would_you_describe_metaphysical_poetry_start.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10360 4944 bytes
SHA-256: 8746c7caa0be6d4342c504c73ba9046716528a6a76f067fab9d3a8c5e30c37bb
font_01_sfnt_off0001140f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1140F 10336 bytes
SHA-256: 2fb2f3078ddc9263487cc2e747c77125df44b8a33172b0f1f86abc49272c48c6
font_02_sfnt_off00013760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13760 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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