Malicious PDF — malware analysis report

Static analysis result for SHA-256 314208540698eff0…

MALICIOUS

PDF

65.2 KB Created: 2021-01-13 21:51:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 556c685e003a1a96568d856578d407ea SHA-1: ef9047a75d0194e1eda6f2bfc9220494135854d2 SHA-256: 314208540698eff0dc771058ff2e7c0cbbde4e0f110517b041e2f5c6ac75e9cb
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://traffking.ru/123?utm_term=computer+cafe+tullahoma PDF link annotation
    • https://site-1168326.mozfiles.com/files/1168326/bbc1_tv_guide_today.pdfIn PDF document text
    • https://site-1172701.mozfiles.com/files/1172701/verb_etre_et_avoir_exercices.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378149/normal_5ff3e37ebb94a.pdfIn PDF document text
    • https://cdn.sqhk.co/nukuzulu/Rh5g6gc/60971687214.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/nafoxuda/6568529856.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/63525690802.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/cacani_animation_crack.pdfIn PDF document text
    • https://s3.amazonaws.com/welanisowari/xiwamozumusefima.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/64619714741.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/ciclos_circadianos_en_plantas.pdfIn PDF document text
    • https://s3.amazonaws.com/vunizi/fielders_fencing_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/ajax_vs_tottenham_highlights_bleacher_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/cambridge_english_advanced_trainer_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/varoximu/janififulasanonepa.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/senisaruretef.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/10845884614.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_off0000c40e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC40E 4980 bytes
SHA-256: cf3f392553261a9b74b68bc006fa0019c71a4a0a106ad2667eba1dd3425c9eea
font_01_sfnt_off0000d4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CD 10368 bytes
SHA-256: 461fd878b97c8bc5b5eb0b2c78d8b99a99fdddce85cf8381bf39bc2a0d39651c