Malicious PDF — malware analysis report

Static analysis result for SHA-256 264a1bf6219915d3…

MALICIOUS

PDF

68.7 KB Created: 2020-11-13 20:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 264363153d595bfb6182c1f0aa55aeca SHA-1: dcd21df460c517e3122f4b0e0c4bbb0d363f9bff SHA-256: 264a1bf6219915d3da0bc924f234bd5c2238a68982d0e6da4d84e6f008b1e144
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 0.9997

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://traffnew.ru/123?utm_term=ipms+nationals+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414514/normal_5fa98a127bb6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372721/normal_5f895a3dda25c.pdfIn PDF document text
    • https://kinimozudex.weebly.com/uploads/1/3/4/4/134498073/9d1dbe.pdfIn PDF document text
    • https://femekeviwafuga.weebly.com/uploads/1/3/4/3/134345727/dizulazujozi_woxijarerusu.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/28ae78b2-9945-45e1-9cda-c2d90d0f375e/wozadijexijajozif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74b73ce0-8f3c-47d1-9cc2-05ff636d2554/muvavaxoverujumirusu.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/mikuvumajemubemavufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3557c838-e839-4478-910c-eeb8573a9e13/sarawafoponelubedewedu.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/case_study_file_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b28beec6-dd6f-4e3c-a4f7-7f570783a2eb/21794036519.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/10681385957.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/indian_wedding_invitations_free_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/farberware_wm_cs6004w_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/nba_2k19_free_vc_xbox_one.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_off0000d008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD008 5080 bytes
SHA-256: f7c6076ac26da93f58385f5b014c82e07842a100d7fc54c29feb87d9de6370c9
font_01_sfnt_off0000e13a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13A 10808 bytes
SHA-256: a78bd371872cc588bb6104c1b443a0f682b8d11f809fb0db070e6ee1ed41007d