Malicious PDF — malware analysis report

Static analysis result for SHA-256 045679249c469a0b…

MALICIOUS

PDF

68.8 KB Created: 2020-11-28 00:58:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 292337ad0f2e15474a2a3a6182abaef5 SHA-1: 17032e8bd5f447d5185b1182e34901ba3f528e0e SHA-256: 045679249c469a0b06cfdf0f4fba7b01606d8f1b4248c6b820ded32936f41de2
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://trafffe.ru/aws?utm_term=cd+zeca+pagodinho+acustico PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367905/normal_5f89216306967.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451231/normal_5fa9bde861734.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca3040ab-6a29-4fb5-a8ad-bbf3fdd8525a/48261598422.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f01d08e6-79cd-4ada-8e46-769131bea01a/62179809197.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52042d6a-5aa4-4432-a14d-956b8f6a8fd5/72092702790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/308877fd-dabe-4fb7-8067-6b13188124aa/60076251914.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a7ad64c-a8f0-4333-a53b-09025b66d0f7/38527109733.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e52ca7c6-de97-4b7f-88ba-80a3b83e2c65/chanel_size_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/minegozavamupowogero.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/799729a9-600d-4e92-90cc-d96d8980dadf/tukajakog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3766ad5-6ca5-465e-8bf3-1e4974336008/57337879011.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e98bede3-6341-435b-bc47-e7e1de467b39/skam_season_1_episode_1_soundtrack.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/powerpoint_minimalist_template_free.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_off0000ccb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB0 5160 bytes
SHA-256: 6c839e9d49f9c3384a0a6bec546929b45899fa675f86b132dd1fb4f9377e71ed
font_01_sfnt_off0000de43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE43 12944 bytes
SHA-256: fe82fc05e88c3f4332754aadb40d002f0c4c692aa3809a42b3f2800bf805b848