Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb488ee48a558c5c…

MALICIOUS

PDF

73.1 KB Created: 2021-03-03 14:18:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8ca75b5deeee664139af49b7f7a93112 SHA-1: fb3601cf5e84cef606dea98ac7d6aa60aa60d9c8 SHA-256: eb488ee48a558c5c38b4469aeddb01ab3965c52cdc6dabcb2c194ded52701c9c
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 0.9998

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://golowaki.ru/wix?keyword=goro+akechi+black+mask+cosplay PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418587/normal_60055ccbeb4ee.pdfIn PDF document text
    • http://mmuuue.space/how_should_i_start_preparing_for_gmatex292.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393356/normal_6031e31fa0f71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387711/normal_5ff0079833bda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379240/normal_603719ee2bbb7.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/bogeguva/72630878475.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/arson_sentencing_guidelines_in_california.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/87946004217.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/2018_custody_calendar_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/acr_eular_guidelines_gout.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/20917895727.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/vokaxoxituxok.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/helios_airways_flight_522_accident_report.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/zevedal.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/20108708460.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD607 5508 bytes
SHA-256: 915101356d75f84cc8c7412019ccc108ea736a97a8447cc528731ab66ad3cfce
font_01_sfnt_off0000e89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE89B 2144 bytes
SHA-256: d6b881dea4b53bd0f70e55055c8dc59b2d9f1421e0e9905b329bc8f7d28fb57c
font_02_sfnt_off0000f28c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28C 10820 bytes
SHA-256: 4aa2ee3cbd3dc3a946ee11d3e589a86a2bcccfec08ebf9974dbb07221bb053ce