Malicious PDF — malware analysis report

Static analysis result for SHA-256 462ac33bcae8eb56…

MALICIOUS

PDF

117.8 KB Created: 2021-04-03 23:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9d8c0e3cbdedb0a84d8fb2bfb64c89f1 SHA-1: 1c1b909a8c6d1613ee6cdf04fc0e8e59b53d07be SHA-256: 462ac33bcae8eb560ec18d08e389b44392906f64ea81a21c6c000dc75242bbb3
96 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 malicious by ClamAV and 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 0.9991

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://vilenefex.ru/wix?keyword=rate+of+photosynthesis+lab+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375203/normal_5fdb1226b9cf4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369900/normal_603130b5755c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378382/normal_5fe035d80e77a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490725/normal_5fefed4ea887a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484804/normal_603e925937cee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444095/normal_5fca134b9ed3a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_5fe2a7467c33a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418783/normal_6032a47805713.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409421/normal_5fda83d6d9f54.pdfIn PDF document text
    • http://digosutinovun.iblogger.org/defesubakomobesog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387424/normal_60682a3c355eb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sofidusujewa.epizy.com/16812285089.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c4ed23c-8781-4517-8a8a-a1fc161d48f6/wil_yeung_vegan_ramen_cookbook.pdfIn PDF document text
    • http://riremim.rf.gd/55420582775.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc7f3931-51d9-4506-9eff-807c38d12f94/what_is_arris_username_and_password.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47bd5fbb-2282-4957-9d17-e4aa5d622250/read_ronin_warriors_manga_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b979a768-0264-4fe5-80b1-f0bd3c53ac18/96754962651.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc326c27-3422-457f-ae83-e6028cb4d37a/saeco_xsmall_plus_espresso_machine_troubleshooting.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000147cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x147CC 3136 bytes
SHA-256: 858a42df5048f000198439ea7b9cb90c60945af86177200c5762bf807ed163e9
font_01_sfnt_off00015313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15313 5392 bytes
SHA-256: 48ee7761954415f5ea529abfe7106f807d6f622e2fd0b37b1a67bd57d07b49aa
font_02_sfnt_off0001657d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1657D 2296 bytes
SHA-256: 1998c9785728b20fe1258a32060e2f0fcd8b9868b4c8ba646ad228fa34359c80
font_03_sfnt_off00016ff0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FF0 14860 bytes
SHA-256: b1eda35c4f4f2b229bf4c414656f8c5cb4d546bac2de6e99b5febe39bd2395a9
font_04_sfnt_off0001a1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A1D9 16576 bytes
SHA-256: 0e6b9cb1ceb7a819a3a261b37f864603232a1448b73d7aad3e5ef2873dd2cf7e
font_05_sfnt_off0001b8a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B8A7 6268 bytes
SHA-256: d71f89e7fe34437c44bbf6ff7b2c9efd639f803791fbb1d28804261a59e5298d

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