Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd9703c29681994c…

MALICIOUS

PDF

100.6 KB Created: 2020-12-22 04:13:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 06df91681ad14275b69e260a5840ed83 SHA-1: c2732fe34820f70664c9a85bac832519faceb214 SHA-256: cd9703c29681994c0b4c860dfce5ddd7f9256856af87fb198a5663c34764880c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9995

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=siberian+cat+for+sale+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451019/normal_5fc74f527b9f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365607/normal_5f8700471118f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446017/normal_5fc3d34a42705.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460230/normal_5fcfe58ef1378.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/71355a06-9b14-4856-8144-9b1f64ccbab8/46195770826.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d45b8b17-93b3-4c97-9b68-0f0044373862/vaxof.pdfIn PDF document text
    • https://s3.amazonaws.com/tapelu/anecdotal_information_childcare.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4b132dd96f5918e4d320/1606372115820/trading_paint_release_date_february_22_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d00b9a6-e1ea-4a10-82ba-66869a026ce3/50341612976.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de1c1367-7419-473b-b77e-c8569101b231/34650037807.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf0a78fb-185f-4c50-836c-e24e4335d8fc/lofof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e9d1d57-e84a-4c08-8a28-12c0cb7e6145/can_utility_function_measure_the_customer_preferences.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51fc0ea4a794d56607abf/t/5fd04c223bcf75077a7e6edb/1607486503903/wexalogevelo.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/ziwapizesab.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011556.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11556 9676 bytes
SHA-256: 6da25b9c24d73e27d412eca7e04e0da2351507a8436898ed8d7ea1fe10ef5b6d
font_01_sfnt_off00013537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13537 5060 bytes
SHA-256: 2dfe9c03fd4bb9e68bce2926c861d4003741181ec12d03d75dd517cff2e358d7
font_02_sfnt_off0001463e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1463E 17224 bytes
SHA-256: 50e3d75f6b046d50914eac27cafad697a6bbba1a9c7feb0968609022d16d0e3c
font_03_sfnt_off000176fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x176FB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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