Malicious PDF — malware analysis report

Static analysis result for SHA-256 80c202b6fc423b35…

MALICIOUS

PDF

69.1 KB Created: 2021-05-01 03:16:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 584b6716a8cf833e390afa7ee6e3768c SHA-1: 5537934b947a5081e3440dfd086cddd24f0f6033 SHA-256: 80c202b6fc423b35bf7df9081135337dbd9efcbc1602165f58af5deedafb71db
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF document that contains embedded URLs, one of which is a Google Feedproxy URL that appears to be a lure for merging Excel sheets. The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of multiple unknown URLs suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://www.teppiche-waschen-hamburg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d403797b7a---tixojonodowidarid.pdf
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16074a1494f697---tuxagisiwatizelevisu.pdf
    • http://ahdongjiu.com/upload_fck/file/2021-4-30/20210430103720495331.pdf
    • https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/d3100befd0770a6049360eecf7ebedd6/tijevi.pdf
    • http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16070e1a6108b7---76809225750.pdf
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/npbhu5fenc45g2sjqgue2shhp6/falaboka.pdf
    • https://praward.tw/wp-content/plugins/super-forms/uploads/php/files/e6f5c7adc5cb9f10ce8957282dae0da5/63424111766.pdf
    • https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/3e422d2885e61f82e2286cbbf1c8b649/94633476235.pdf
    • http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/bk2gjudv6egouf5folora88vc0/kubojujura.pdf
    • https://www.makathastaliklari.net/wp-content/plugins/formcraft/file-upload/server/content/files/16076653d4eb74---fisogakuninawana.pdf
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607778f6494b2---dapikanivanegaboxazigew.pdf
    • http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/08ac29e4a5658a6568fa88f47c927ba5/3738573591.pdf
    • http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/1607f4d674ac0d---82745659387.pdf
    • https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080202778224---supixipiru.pdf
    • https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/ec185eaf30bc4b81210783a55e5e7d60/tulemisanareb.pdf
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/58af3f8f6b69722ddc0af680cc93684d/31056970516.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=merge+excel+sheets+together+online
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d470.bin
e2ca45c8ca1b8995374212e52ea9babc74d8646391b9076ef0a3a624a036edb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD470 4924 bytes
font_01_sfnt_off0000e542.bin
f53993a2b6dcbea7b204175ac33821b70453f1749ad71ec9c12c97492bb0bf36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE542 10028 bytes

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