Malicious PDF — malware analysis report

Static analysis result for SHA-256 b275f5e3a1afeb01…

MALICIOUS

PDF

384.3 KB Created: 2020-11-13 06:59:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 77d2f30ea516794a47e87e8bf8258f22 SHA-1: 90d20bf71ab86f75f7522f89b0c7842e9d5bd26e SHA-256: b275f5e3a1afeb017a68a76399213cd621fea685bad29ebf1eafdae0852e2a06
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 0.9823

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/123?utm_term=springfield+ohio+obituaries+2020 PDF link annotation
    • https://lereviripos.weebly.com/uploads/1/3/4/6/134663640/9162187.pdfIn PDF document text
    • https://gekeforoka.weebly.com/uploads/1/3/1/4/131438206/gapomezogabipajisegu.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/b4b3eb38b.pdfIn PDF document text
    • https://rezizeme.weebly.com/uploads/1/3/0/7/130775554/gekinafataluji.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/431967b989f5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413976/normal_5fadac220f19d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373526/normal_5f8b3eb76b7f5.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/wewebunovemerifabo.pdfIn PDF document text
    • https://tenanetudoji.weebly.com/uploads/1/3/4/2/134266315/fobiwe.pdfIn PDF document text
    • https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/6276840.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/5ee11c2d-1b9b-427f-b39a-6b9d65083d88/que_paso_ayer_2_online.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/territory_war_3_hacks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/369d19a2-8231-4c5d-9175-af9ecbd2d780/sexozirozajagu.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/download_apple_music_apk.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_off0005b6fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6FC 5820 bytes
SHA-256: 685c3f7082d624ed540e6f7e20381b7bf78d014a46dfa3e1db8fd5e4fac0ab75
font_01_sfnt_off0005caba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CABA 11444 bytes
SHA-256: 98445c3a6f0e53cb1ccfc9d9bcac83fe1bb70faf11f52c17e5eff772651a078b