Malicious PDF — malware analysis report

Static analysis result for SHA-256 84c727e09e7ffc06…

MALICIOUS

PDF

81.2 KB Created: 2020-11-19 03:41:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 0fa28784b57b0b1d86a9c05337cc521b SHA-1: 5d23a4f4cd3aacb6ff1520a879552d40c61cb063 SHA-256: 84c727e09e7ffc06fb4fa38af89319d4dcb494db9efa303d9e08681334141c13
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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffnew.ru/strik?utm_term=phineas+and+ferb+candace+porn PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4373004/normal_5faf14118689b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379605/normal_5f8e545b8deec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385887/normal_5fb364e67fbdd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372681/normal_5f8e671adedda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372087/normal_5f8981fe1e65a.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/limewub/who_won_the_battle_of_saratoga_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a77e212-ebe8-4701-83ec-f0e18b880044/4th_and_goal_2018_unblocked_55.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ba68c94-1144-41d9-a4eb-de08f3446409/monster_led_light_strip.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/channel_4_tv_guide_f1.pdfIn PDF document text
    • https://s3.amazonaws.com/jolozidabi/aws_lambda_environment_variables_terraform.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/785f87d1-4334-4961-a95c-3a175dce0831/46554167595.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/920b559c-4b5e-4785-9c28-13a30ccd3052/bosubagasofozalun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a99abebd-bae1-4800-b9d9-c0afa6bd7018/18766062487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/241c1b6f-bd08-4465-9e88-de71da467ea7/dunarotosera.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_off00010353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10353 5352 bytes
SHA-256: 2d4ecc7615d1ae65ce9bd3547e36d6da34cae6fbd1088c2c44a3c89126dc6a9b
font_01_sfnt_off00011574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11574 10084 bytes
SHA-256: cee35374ba7ff976a5c592dd91ba203674864320756499357f2c545b2181ed4d

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