Malicious PDF — malware analysis report

Static analysis result for SHA-256 24678112ff095b18…

MALICIOUS

PDF

90.1 KB Created: 2021-01-09 23:56:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: e9c48222fb39e10890310e02777ac654 SHA-1: 274ab5decaaec2d0d818fb47ff6deaf8a22806b2 SHA-256: 24678112ff095b1875ff4f6a5a0ad9d1af8688c6b2c1d1c77f8dbc02cdcc3eaf
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URLs likely lead to further malicious content or phishing pages, aiming to trick users into downloading malware or revealing sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/aws?utm_term=company+of+heroes+2+not+ing+maps PDF link annotation
    • https://cdn.sqhk.co/jabakujivim/Phfjbfe/100_love_ringtones_free_download_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375704/normal_5f8d870edcb88.pdfIn PDF document text
    • https://pamuguvijokogag.weebly.com/uploads/1/3/4/8/134883264/4771426d5bd5e0.pdfIn PDF document text
    • https://site-1168312.mozfiles.com/files/1168312/shooters_outpost_gunbroker.pdfIn PDF document text
    • https://site-1173336.mozfiles.com/files/1173336/real_offroad_simulator_3d_2020_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/jerowerar/8Chiwxt/fapusujutibajonakifiku.pdfIn PDF document text
    • https://cdn.sqhk.co/govuzupikiwe/jeEbLjg/nogadev.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473656/normal_5fcebe8d24ead.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409819/normal_5fbdd757a5434.pdfIn PDF document text
    • https://site-1178075.mozfiles.com/files/1178075/sdgr_stock_price_today_per_share.pdfIn PDF document text
    • https://cdn.sqhk.co/nagigureti/338yYb3/bus_simulator_18_activation_key_free_download_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/xiteduva/0dNMjco/best_free_word_puzzle_games_for_ipad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00012570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12570 5420 bytes
SHA-256: 7fcfc5e7a41133e27880a58a87e831c799cc050ed9c7378da65056c23df85248
font_01_sfnt_off000137c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137C6 10392 bytes
SHA-256: 4df055626c3bedbe7b8af463df83ad91ef21179cab9a923666ddd68d456969dc

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