Malicious PDF — malware analysis report

Static analysis result for SHA-256 660689a01a954539…

MALICIOUS

PDF

96.0 KB Created: 2021-06-29 04:09:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 953038130b4a70ef4b434bd6ceaa5a9d SHA-1: 87ec5c70e29a2157cc36bfba28bad1a507cf7320 SHA-256: 660689a01a954539b2d9f499f26f7cf00ea0fac9993a29303e2d6628400966a0
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of numerous unknown URLs suggests an attempt to host or distribute malicious content. The heuristic 'SE_DOWNLOAD_BUTTON' further supports the phishing lure attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://rubivina.com/Images_upload/files/69530842466.pdf
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a457ea2ba32---sulukepisipuverutoxexen.pdf
    • https://sardavetri.it/userfiles/file/79830893330.pdf
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098fd3c6a91b---94558624584.pdf
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a52c4eb7ef2---21015054985.pdf
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b2544825668---ridubitofiwolesosoriva.pdf
    • http://evohome.pl/userfiles/file/zazovurikoboworuj.pdf
    • http://flambotour.it/themes/userfiles//files/wokizunajudesotatafojexig.pdf
    • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/655feefcdaac33d703131bd6ad072f9b/39716724867.pdf
    • https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/b0869627cba99cd1eaa9d44dc06c5877/saberenizixidodugefunulo.pdf
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/6a4314bd54e77180eb4a23276acaff2c/wataxalipuwutalu.pdf
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/a0d59bafd693ee23ea9350ca696f8561/gawiwibaputuxerinuzopuwi.pdf
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/0ad2969b23053ed012194af89b281c65/31292101298.pdf
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/vg0lflamb5f09a6np9k6h5pkqa/rozizikafa.pdf
    • https://www.chartsunlimited.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/1608f01f0a0cd2---24013834321.pdf
    • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/f7eaaac8ebb8ccb728ea7f32491e3923/42128529683.pdf
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/5o2aknu9g8m7qruuq3caqn9871/64407963224.pdf
    • http://ahcxdq.com/uploads/file/280406444044.pdf
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c20faaa8233---sizapobalewavez.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073389743c89---ninotemazibumaxawifi.pdf
    • http://www.urbanwaterways.info/files/vosorolunofajutirigi.pdf
    • http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/49667693706.pdf
    • https://spacio.hk/attachment/file/29351143562.pdf
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160bbbdafdedf8---ridekiro.pdf
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/00d7d34813bb862180c7694fff0cbb23/64927220830.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=scofield+reference+bible+pdf+download
    • 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_off0001123b.bin
c0e315c869362ad728d9f66566bce896ead7f2c7878925d2d8ba948326646179		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1123B 10648 bytes
font_01_sfnt_off00012a7d.bin
2af64225cdba6c44e2b41859808da30dd2a50a7426182453f107171ab2354aed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A7D 18248 bytes
font_02_sfnt_off00015a81.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15A81 16792 bytes

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