Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e75a9d9bf88b8e8…

MALICIOUS

PDF

65.4 KB Created: 2020-12-07 21:46:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e715eba5895fc85e85c910b7b099ce69 SHA-1: 9176f6477f1dd6c3ae080bcf5d7ecf92f5987942 SHA-256: 6e75a9d9bf88b8e89eb7bc77f9cc527be9579f3d50cd0e43750e78e9428fcd5d
96 Risk Score

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 0.9996

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://trafficel.ru/strik?utm_term=sound+solutions+audio PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc52cd1c30a162e0c6e62de/t/5fc6e19fefc65c5b7a32b87d/1606869411847/xunam.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5068eaf37e3b64926566/1606373483065/76725006164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a41d447-62cd-4710-9af5-0d0758536694/32199521226.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc16072e9fc3622d52570ce/t/5fc2ba403f75b166432deb4e/1606597185118/70482012041.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4f390c6229360ecc6cc65/t/5fcd4b3574a40730fba76beb/1607289653956/risulasex.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/casio_f91w_user_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4d6361e25426e12efd21/1606372708450/fozudigogu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0bc293dfdd95b60d440d6/t/5fc5dca3fa04221c71eb6964/1606802596317/toshiba_vhs_dvd_recorder_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5d2aeaf37e3b64933dfa/1606376748525/sisosipolifeguraliradaka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83ce546c-cbb9-4315-a5ff-2725adad7d94/36807333054.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC497 4828 bytes
SHA-256: e18d246445ea44c46b428d2716729d3add79a37e96db55be44c7e230ccec8bde
font_01_sfnt_off0000d510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD510 10652 bytes
SHA-256: e033882d20e8ae8171750697848876008e032842e57450356787e603b0378c49