Malicious PDF — malware analysis report

Static analysis result for SHA-256 5993420f1496cd70…

MALICIOUS

PDF

74.9 KB Created: 2020-12-24 00:31:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 1d49410667b7e51fad44cb5efbc14125 SHA-1: 918857ebff41a0401a421422d5e7d3f3309317fb SHA-256: 5993420f1496cd709ece5022bf601f7a7211479e0566e0dfe5ff92aa32704b66
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://trafficel.ru/strik?utm_term=mtg+arena+tournament+results PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4446270/normal_5fd6284459e5a.pdfIn PDF document text
    • https://zuvopejibi.weebly.com/uploads/1/3/4/0/134017525/gomuweni.pdfIn PDF document text
    • https://vamekatowozi.weebly.com/uploads/1/3/0/8/130814347/88bd36aea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450040/normal_5fa6468c28bb7.pdfIn PDF document text
    • https://guvolobojifo.weebly.com/uploads/1/3/4/7/134733869/647de8827f59f.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://s3.amazonaws.com/betimugi/xovakozekivanuzubirojox.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/danganronpa_2_chapter_3_trial_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfaa9eb9-915d-431e-8cc8-1a548fd00628/sijidaminona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f909dc1-6b57-4ddf-9cc4-a4517b71fbf3/98010468541.pdfIn PDF document text
    • https://s3.amazonaws.com/potevip/44878051347.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/konsep_dasar_agama_islam.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/mission_craze_ii_compound_bow.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/25895830963.pdfIn PDF document text
    • https://s3.amazonaws.com/wuwabobujasivor/second_world_war_images.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000daaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAAA 4844 bytes
SHA-256: a824aa3f1276ff4684925e5da403d9fbdd6e206ed87f17ba5e2b85d7417d4cfe
font_01_sfnt_off0000eb0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB0D 11156 bytes
SHA-256: 34c8a8c18d0c6336953926ed096a946da6928d745ea3865a76140b14dcd7e976
font_02_sfnt_off00011121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11121 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3