Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b0d62ee2298178c…

MALICIOUS

PDF

68.8 KB Created: 2020-12-02 14:23:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a01e17a809d480f4b214ac506dab1fee SHA-1: 2fff265599ac47bd40fcea03abc45c826a18af6d SHA-256: 1b0d62ee2298178cf26f9068c59756bca5feaf03dbb403ac449feac572d88c4c
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 0.9997

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://trafffe.ru/strik?utm_term=minecraft+build+battle+server+pc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416319/normal_5fc2c8eaa6e16.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/e946d9b8-cf13-407f-a794-33919ec0817e/jifigejuvapatike.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4369570d-a328-427b-96d1-845a4c9fbebd/pujifafajen.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/encyclopaedia_eorzea_compressed.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/89650503795.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/sam_cooke_bring_it_on_home_to_me.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/vorudapadotigaxadi.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/xitizebotudilewidixexiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/courier_log_sheet_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6651339-ce89-4dc9-95f1-c6c3fe392c76/dasexiwixa.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/tibovusadofanugozexor.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA98 5356 bytes
SHA-256: 0e2fff1b10fd171b213b6338b27d732081ce9e0ceae4e594f3a0ffcc2a75ffed
font_01_sfnt_off0000cce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE8 10608 bytes
SHA-256: aa4ca260ffe1e0180dd52a9a4a22cefca180156e67802410ee3afd94d2e6b7d9
font_02_sfnt_off0000f17e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF17E 16116 bytes
SHA-256: acdc7345fd7c724e0f83f99756c334a81566d7f1ced1780f830934d9e28cbf4f