Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d43ff8776f1bda…

MALICIOUS

PDF

71.8 KB Created: 2021-02-23 15:12:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 424ad98a671cc11c49c93810ce57ae4d SHA-1: 4271083e54df92b2b787c5f7b7a808942ca868a3 SHA-256: 98d43ff8776f1bda7182072eea508fe6e74b5d1d42b5e97bc121f94e4d0660ee
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with one prominent URL suggesting a lure related to connecting a printer, likely a phishing or scam attempt. The PDF structure and embedded content are consistent with a malicious document designed to trick users into visiting external sites.

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://baarspo.ru/123?utm_term=how+to+connect+pixma+mg3520+to+wifi
    • http://chebsvet.ru/87098537711w0vc7.pdf
    • https://cdn-cms.f-static.net/uploads/4369334/normal_5fd61e5827503.pdf
    • https://cdn.sqhk.co/vifutetax/fDbNjft/samsung_notes_not_working_after_update_2020.pdf
    • http://trynon.xyz/novokifadolidazoxirilufijg4vka.pdf
    • https://cdn.sqhk.co/nulegudup/Kfhdzgi/billy_bunch_auctions.pdf
    • https://cdn.sqhk.co/ferorigife/3WxjbLO/badland_winch_remote.pdf
    • https://cdn.sqhk.co/divojimo/aibiczA/misufabewevotusizajifisum.pdf
    • http://gouliwer.online/renesas_electronics_usb_3.0_host_controller_code_10jhsgj.pdf
    • https://cdn.sqhk.co/suvezadamut/iadg2je/80299280403.pdf
    • https://cdn.sqhk.co/rewazexi/BIhhidC/kalutotalagalutazenuru.pdf
    • https://cdn.sqhk.co/disumuneriva/iczhiIu/powike.pdf
    • https://cdn-cms.f-static.net/uploads/4491398/normal_5fd348f770447.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vibasujefir/family_tree_coloring_worksheet.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dce1.bin
2bd8760aab2f65694a76eef88b7d55c38272ea423fce6e0acfe23a391220d777		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCE1 5712 bytes
font_01_sfnt_off0000f070.bin
aff726e6c6f9752a0dfa87c6f2cc5d2d3eecd4f4530e0294067d3142117c804e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF070 9812 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.