Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef0c405b0b26d90…

MALICIOUS

PDF

86.8 KB Created: 2021-03-25 14:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e391ee72e8e6f3075c6c30147643451c SHA-1: 9d1cc3c4b69e0769f57ab87e0875cbd0054ff957 SHA-256: 1ef0c405b0b26d906298a2934a210189607c693d92072d480ea973265b6a9822
104 Risk Score

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. It uses an invoice-themed lure. 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 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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://lozipotod.ru/wix?keyword=como+hacer+un+invoice+de+trabajo PDF link annotation
    • https://cdn.sqhk.co/woselukafo/jf508fy/domino_falling_videos.pdfIn PDF document text
    • https://cdn.sqhk.co/pexufenek/fbLKwig/vexowemobofur.pdfIn PDF document text
    • http://vimobewawulipiz.mypressonline.com/89357454582.pdfIn PDF document text
    • http://ravujonawugip.22web.org/savapeniretex.pdfIn PDF document text
    • http://setafugeridol.scienceontheweb.net/vetoforidavud.pdfIn PDF document text
    • http://kivikevakefum.22web.org/82269513976.pdfIn PDF document text
    • http://fadaduvafobetup.iblogger.org/71279134494.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/tudawufed/bunco_score_sheets_2_rounds.pdfIn PDF document text
    • http://zidabisix.epizy.com/madison_county_arkansas_arrest_report.pdfIn PDF document text
    • http://newepizudef.atwebpages.com/fuvotomijuxunanirijupujad.pdfIn PDF document text
    • http://regujivabi.rf.gd/10277179801.pdfIn PDF document text
    • http://duwosemomim.epizy.com/balancing_chemical_equations.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/gamaditevafos.pdfIn PDF document text
    • http://gijafusatuvaxoj.rf.gd/karimi_aflatoxin.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/12285271150.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/what_do_you_understand_by_the_model_of_community_development_elaborate_with_examples.pdfIn PDF document text
    • http://pojuparupexafu.epizy.com/asuhan_keperawatan_abortus_inkomplit.pdfIn PDF document text
    • http://lojojijozopixaz.epizy.com/how_to_write_a_script_for_a_presentation_examples.pdfIn PDF document text
    • http://rerivumisiso.rf.gd/blank_political_map_of_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/cod_infinite_warfare_trophy_guide_and_roadmap.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_off0000ff28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF28 5152 bytes
SHA-256: 5be18129e476849561f9e37807dccd0428b2596b4c02b07f984fa1a0803b7e78
font_01_sfnt_off00011084.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11084 11904 bytes
SHA-256: bd9e00652777e4b6ffb862d25d15ea59d30f94fe8fd6aa2596a1fe2c13bf61df
font_02_sfnt_off000137e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E5 16088 bytes
SHA-256: b2ddecaff7e2361bf51021b35f9c014659943b600c4f466cb4656cea9e83b80e

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