Malicious PDF — malware analysis report

Static analysis result for SHA-256 6794ec8a653fde04…

MALICIOUS

PDF

63.7 KB Created: 2020-11-19 22:32:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: a467075ad1031064ed21ef4fb6f84c23 SHA-1: df72f0379b7b53a2c5a038264aeb670d83559b37 SHA-256: 6794ec8a653fde045b41b72ea07d6ffe26fde67339ce0b4009786a1337f3f2c8
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://trafficel.ru/strik?utm_term=can+you+set+up+groupme+without+phone+number PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393349/normal_5f8fe60462421.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375083/normal_5f9e8e6069e8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369797/normal_5f990e72249d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5f877b2f79fa7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452862/normal_5faeff256731a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413980/normal_5f94adb572779.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/lorugipopuxe/kingdom_hearts_2._5_lingering_will_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/jokulebowisaloj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e5b7731-16f5-4b9a-bfce-def7397aa9f1/64463474291.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/478bd6ca-61ef-4853-bc73-00d2eafb055d/skyrim_a_la_recherche_dune_rvlation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3161b494-5a3e-43db-9ebb-13a1a17f20b7/bevelosuzebigurejiruzidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fddf5aa0-0c4c-4a8e-8f38-c32e47cd3dda/23468834833.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa56f224-c1d7-4065-8574-5b0b2919d974/jujawigoxa.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_off0000bc4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4E 5440 bytes
SHA-256: e33f420638950133ce436a8f036e5bcbd175fe8024a8510349776523695f3c55
font_01_sfnt_off0000cebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBD 10300 bytes
SHA-256: 70a051899c12826d61341f6f52fc8217f466517a5480f1f087778ea131951079