Malicious PDF — malware analysis report

Static analysis result for SHA-256 da342aa73f914afb…

MALICIOUS

PDF

77.4 KB Created: 2021-03-10 03:40:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: de0fb05d1bc0b63fe519fb055ee14bf0 SHA-1: 7c99fd588e40f9772c529d5d6ed0eac5041d4bd1 SHA-256: da342aa73f914afb81a136cc941eea0b54513834c2e5c570c3e530fd27f5c7d6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF that contains an embedded URI pointing to a suspicious domain, disguised as a search result for a software book. ClamAV and ML classifiers flagged this PDF as malicious, specifically identifying it as a phishing trojan. The presence of an external URI suggests an attempt to redirect the user to a malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/award?keyword=adobe+audition+cc+2020+classroom+in+a+book+pdf PDF link annotation
    • http://scotiaenlineape-personas.com/50377941442le9ml.pdfIn PDF document text
    • http://reassurez-moi-fr.info/woladokutonasemiv0o5oe.pdfIn PDF document text
    • https://cdn.sqhk.co/nomuzali/8gg5har/borovajukadade.pdfIn PDF document text
    • https://cdn.sqhk.co/pafatewodoju/gdifAie/tupedefexe.pdfIn PDF document text
    • http://brosbass.com/dukivotokojukulozaxegevp6r.pdfIn PDF document text
    • http://daating19.site/how_to_test_a_gas_dryer_solenoiduftb2.pdfIn PDF document text
    • https://cdn.sqhk.co/gedugari/jNYGxoZ/farmer_in_the_dell_walpole_ma_02081.pdfIn PDF document text
    • https://cdn.sqhk.co/segenoliz/6iigeje/mitubosaxal.pdfIn PDF document text
    • http://1xbet-registrat.site/mebotizigapedasnr.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/vidadaviwal/this_is_amazing_grace_chords_d.pdfIn PDF document text
    • http://fawivemepogu.epizy.com/jemurozuxugebonewaxikako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af261411-fd31-4172-8605-a79a35f40ab9/letiwutimuzomixadajukuv.pdfIn PDF document text
    • http://xivifusa.rf.gd/what_are_the_responsibilities_of_a_covid_19_compliance_officer.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/36476516511.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/photosynthesis_and_cellular_respiration_foldable_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/what_will_be_the_color_for_2021.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/17048542517.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/attenuation_measurement_in_optical_fiber.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/dojedibavuvogop.pdfIn PDF document text
    • https://s3.amazonaws.com/panokojol/docker_alpine_apk_add_proxy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e955b77-caa8-4d71-af9b-dfd0ee2e9037/pretest_physiology_14th_edition_free_download.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE02 6744 bytes
SHA-256: 048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4
font_01_sfnt_off0000eee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE7 5768 bytes
SHA-256: 67fd6f0534cd811bcfcd72a628cf7f6b683c2b0d3ef7150fd0900187cd24e56d
font_02_sfnt_off00010277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10277 10496 bytes
SHA-256: 7cba006f1e2c3141c74ef32a9a74bcc90333e3f3ffb6040df5df1f96da63930a

Open this report in the interactive analyzer, or submit your own file for analysis.