PDF static analysis report

Static analysis result for SHA-256 5c31c26c03f8a2b7…

SUSPICIOUS

PDF

215.8 KB Created: 2021-03-28 10:34:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9fa6a769aa2baf8064097b853212b6f5 SHA-1: 535abbcef4381a33b0bbaf582bae2deb6b2feb0a SHA-256: 5c31c26c03f8a2b766db0f6f299bd016d6295b68389b4f2f503a3317f01fc511
36 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

Heuristics 3

  • 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://kuzutuzo.ru/award?keyword=marketing+thesis+pdf+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4449410/normal_6044fc5dca030.pdfIn PDF document text
    • https://cdn.sqhk.co/xonepogafix/dEhhgeA/64110850095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530868/normal_6024816432abc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403951/normal_602f792e4fed7.pdfIn PDF document text
    • https://cdn.sqhk.co/mugolino/iciehbV/free_music_apps_for_iphone_without_ads.pdfIn PDF document text
    • http://punejew.mygamesonline.org/anthropological_view_of_self.pdfIn PDF document text
    • http://zitupow.medianewsonline.com/12032069544.pdfIn PDF document text
    • https://cdn.sqhk.co/jukelifawap/fhh6Sib/86662556076.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e22987c-4cef-4361-b1b0-43f7c58e6733/69903738380.pdfIn PDF document text
    • https://f06ae689-34e6-4fd9-b749-a5985747e370.filesusr.com/ugd/4117a9_10a5a61da37445c5ac61e17a3c433769.pdf?index=trueIn PDF document text
    • http://mokodipixa.epizy.com/minux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e6ed958-ec2f-4088-8839-3af827e75527/john_petrucci_-_rock_discipline_dvd.pdfIn PDF document text
    • http://xibuzejameb.rf.gd/68110522778.pdfIn PDF document text
    • https://460eb545-5389-4aa9-9e78-d1074a8bca0c.filesusr.com/ugd/21a131_8014374ceaed40a387c1e536f4aff748.pdf?index=trueIn PDF document text
    • http://suduxegowur.onlinewebshop.net/jefafibiwofojizafadaj.pdfIn PDF document text
    • https://5b0e1d79-1acc-45ba-a965-31015372eee8.filesusr.com/ugd/67f5f7_fff01ab877a44f2c8e9ec39c03a4b281.pdf?index=trueIn PDF document text
    • http://zapesekunumorol.rf.gd/inverter_direct_drive_washer_error_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aa24e07-dc6e-4483-8a53-733585005d16/demurapewasin.pdfIn PDF document text
    • http://golujaxi.epizy.com/top_100_pop_songs_2018.pdfIn PDF document text
    • https://a7da3e60-63c8-46c1-a846-eab7df628ed2.filesusr.com/ugd/bba345_abfb549eb9f24cc7a27d0401cfac012e.pdf?index=trueIn PDF document text
    • https://4095172d-bd2f-4181-91d7-dd424e653400.filesusr.com/ugd/df73ab_eccdb321963e47c6ad0132d72c5124f8.pdf?index=trueIn PDF document text
    • http://fepebojinozid.epizy.com/baroda_m_connect_plus.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
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31465 5612 bytes
SHA-256: b9c102b761966b985dd13c355e5fc00bdda879d0b3fd78b89e5d14e39b2265dc
font_01_sfnt_off00032788.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32788 12500 bytes
SHA-256: 315e6d47d9176d8f3bcc6a4a9196785ea18a3a2f49928068244691973a8c338e

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