Malicious PDF — malware analysis report

Static analysis result for SHA-256 3574869c8c0096ed…

MALICIOUS

PDF

82.9 KB Created: 2021-07-22 14:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 872fb64c6ba1477cbc282a74a130baa3 SHA-1: 0f0ffe1a86609aaaaa70e960909a586f048ebcdd SHA-256: 3574869c8c0096edbe7e933c191fd81d06a48d1d3330238da7c69c70b2a71ad1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as a phishing trojan. It contains embedded URLs, suggesting it is part of a phishing campaign. Although no scripts were explicitly extracted, the PDF format often utilizes JavaScript for malicious actions, hence the inclusion of T1059.007.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://feedproxy.google.com/~r/razvivatel/yapz/~3/XMoLd4EPXkg/square?utm_term=being+passive+aggressive
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f53853c5d9e6782cf78baa/1626683475618/titanic_song_remix_mp3.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f158438ed7c6554e7d5e8e/1626429507808/19792399367.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8054b8cbe518df576b55/1626112084715/gejadojebaxorosom.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60edb0adf90efc25ed764427/1626189997772/26110541001.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f5d78ea8d69b05ff65bcf5/1626724238267/baranajubuxixir.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f3440ac4d0d61e673784db/1626555402079/wumixonomufa.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed0c3ca17c7f1bf0ff5eac/1626147900224/94584651933.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60edbcae67af15543b050a02/1626193070334/what_is_meant_by_woke_culture.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e9507cc0906550d90caee8/1625903228432/affirmations_for_stress.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60eca7ad7dc7460dd09e5b71/1626122157317/madden_06_iq_test_answers.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f45ed204a1d97017a5df50/1626627794687/literary_terms_review_sheet_part_1_answers.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f195991ec534707352796d/1626445210277/13862996744.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f9006322b0bf63073181e0/1626931299345/galactosemia_meaning_in_tamil.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8f9fc5ebba154a8fa73a5/1625881084652/how_to_invite_friends_to_your_realm_on_minecraft.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1befd788b5c06c8478043/1626455805667/example_of_alternative_hypothesis_in_research_paper.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f1eb5845835164159dc54c/1626467160206/tirudokewejexaloviroduta.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f0cbfe96ce9b33d72bb9e2/1626393598693/binowejitaduw.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f949eed0dad67a22dcc8e7/1626950126955/jidolomu.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e889fc8c671153b553e83a/1625852412800/botany_objective_questions.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e408.bin
0b67922ae424c828d75bf8db534db629668b97bbb23f598e2829b3c9c6651f4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE408 16384 bytes
font_01_sfnt_off00010e9b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9B 16792 bytes
font_02_sfnt_off000126b2.bin
19623c7bdb145bec102093f305030151344a7451c3a907cb54d37c20ac1929a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x126B2 10284 bytes

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