Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd881aeceed023a…

MALICIOUS

PDF

85.3 KB Created: 2021-07-22 18:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: edc71287ec8d7444b3c31e6dc7ea9f05 SHA-1: cb90d57e6df1d5d3b25a51dde1ee52a30ac7b593 SHA-256: bfd881aeceed023a6ac3dc872a41cd5dd2879f3a16baceefd559c44dfc3411bd
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. ClamAV and a machine learning classifier flagged this file as malicious, specifically as a phishing trojan. The presence of the URL suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://ketchas.ru/square?utm_term=moral+flaw+definition
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f66676f3a396036e373ce8/1626760823007/hawkish_meaning_in_english.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f81a4f25f0714c528fc997/1626872399345/how_many_sentences_is_paragraph.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f2de80d68f322590536cee/1626529408369/cinehub_apk_for_android_tv.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f2eeb3699a8678c575e07f/1626533555139/wood_coffee_stirrers_1000_count.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f38bae6167905317dd8ff1/1626573743195/wearing_gold_ring_in_thumb_astrology.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e7908adbc52028c83b25d7/1625788554234/64407119709.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f445285f13a15bd827ee3a/1626621224572/sibizuvatamojazuzuti.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f89757d6a22c495fc5bcf8/1626904407986/mafoxukebubuloxedafubor.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f0e8944bb49071de16154f/1626400916767/discount_code_for_cold_war_ps4.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e88606267c0c637e40171f/1625851398453/a_rhombus_with_four_right_angles.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f06b105ea0710b9d4fc05f/1626368784678/dutiratofegu.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f099bb232f533a8eb4bd28/1626380731510/zapejabojutefoselibav.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f03c240dea5e4896c046bd/1626356772771/worksheet_on_carbon_cycle.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f96303dee5a72cfcddbb11/1626956547736/soul_meets_body_meaning.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f1fbb72dca802cab771abd/1626471351270/41211336222.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ec8c9cf4b4775d049fccc1/1626115228608/tovoxamivepudamutafapaf.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f3f5c3a8f65e35b6df8675/1626600899193/vupimi.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec92b70f7d8d50062cfec9/1626116792055/what_does_it_mean_by.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f20797d93335415b29a503/1626474391793/23775092867.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f5b526b39c8d60fc405a97/1626715430721/24739690767.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60edf9d6cc8e436e466841fd/1626208726741/76677250957.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec80bc700aa07a7894b023/1626112189004/20837141081.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f910d3049fed7a90dbe7e0/1626935508037/30329027714.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_off0000ee11.bin
97a4324948b3cac47f0c8d162f93d1a79ffac0e14cc1e3f88e43c692a879b518		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE11 16368 bytes
font_01_sfnt_off00011869.bin
6033115574f43a055df638adaa550e0639d3fdbb280cf1477ba9a587ed559af8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11869 10260 bytes
font_02_sfnt_off00012f9d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12F9D 16792 bytes

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