Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbbb9ad98ea8b4ac…

MALICIOUS

PDF

71.7 KB Created: 2020-11-10 11:56:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 73c74a9d9b7b44ad308fb96b95aecf6c SHA-1: dd193530997308d3cd10dea79969bb851f16da38 SHA-256: bbbb9ad98ea8b4acae9b37380ba57df8f183385ef8772454d6e941dfa0205900
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://traffking.ru/strik?keyword=am125424+oil+filter PDF link annotation
    • https://tiwilofudux.weebly.com/uploads/1/3/1/6/131606348/dalojoguduf_poxironesubu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474462/normal_5fa9e8136e809.pdfIn PDF document text
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/3340634c.pdfIn PDF document text
    • https://dosedupuwosiwoz.weebly.com/uploads/1/3/0/7/130776272/tijej.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/ce895.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/mejigavukolu/2646863904.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaee48a5-7762-4535-92e2-4aec3042cc19/womajomarogerogilewavi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd918c63-4f97-480e-aeb3-9820d222ed99/wufumowuwosikedofozom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce00bf00-e4f9-475f-9e05-28fd8c765753/6921235065.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a87456e-38bf-4c56-81f5-aec32d2155e0/dowubatodawowefim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4f7990a-2d76-448e-84e8-51412a1e84b3/lademotaruxinura.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19dd71f6-cf3c-47b0-8f28-600bd509a4e6/84949417126.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/468502ff-134d-4348-9b90-192a6e66daa3/pofevejugerokazasezuj.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_off0000dd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD17 4912 bytes
SHA-256: eb5119e7d210b9a5baacecd501781f3c4ff7c70f67d6b2ce15d09a3966de9ca6
font_01_sfnt_off0000edcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCB 10700 bytes
SHA-256: b9cf894b93103fc53754f62f3418b5030c91ac2d122a8988a55631d06116df8b