Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe59967a2d50d3c…

MALICIOUS

PDF

69.4 KB Created: 2021-02-05 12:46:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 4ef5f1f624cc52ae64e3ed0c211d298b SHA-1: b1b5bd373d6d7e9e221afb1d453b4ff9aa24015a SHA-256: bbe59967a2d50d3c2fefceb7752d6237b40981a93a3abb5d134ef911da70406f
214 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to link farms and redirector infrastructure, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. The document body, though heavily obfuscated, appears to be a lure related to a PDF search result, likely intended to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/123?utm_term=sentirse+bien+david+burns+espa%25C3%25B1ol+pdf In PDF document text
    • https://dubezotamepaloj.weebly.com/uploads/1/3/5/2/135297843/binowuwijupupo_zubufomasonulat_sixob_fogolu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480588/normal_5ff4d53467cb9.pdfIn PDF document text
    • https://mupililoxer.weebly.com/uploads/1/3/5/3/135302313/kenojobu.pdfIn PDF document text
    • https://cdn.sqhk.co/kekumumaxow/n3jajgf/doom_eternal_weapon_mastery_trophy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387810/normal_5ff0a7a6d121f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408471/normal_5ffc275c5c26e.pdfIn PDF document text
    • https://cdn.sqhk.co/dimumaneda/UpKs83m/bojif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492253/normal_5ffe516ab0612.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/VjdhhkB/dodiputogiji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479710/normal_5ff5c9295fec4.pdfIn PDF document text
    • https://popovomogomube.weebly.com/uploads/1/3/0/7/130738885/fijagajejozusa.pdfIn PDF document text
    • https://cdn.sqhk.co/xekutenupi/hbhhoig/fivazupuzak.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451348/normal_5fc7a14a7cf32.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/9doshg2/chessington_drive_odenton_md.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413707/normal_5ff6b9c33ad0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463791/normal_5fefdae111cb7.pdfIn PDF document text
    • https://cdn.sqhk.co/fekolisuzub/iaOlYBf/nanem.pdfIn PDF document text
    • https://mututekabifu.weebly.com/uploads/1/3/4/4/134466573/9960863.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/zagubip/android_10_nokia_update.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/ksbcl_web_report.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_off0000ce3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3B 5552 bytes
SHA-256: 781a6c5ddda662f677dd155922b7b5fc497872e8567fd8f7c1480a6c4978699e
font_01_sfnt_off0000e0e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E4 11220 bytes
SHA-256: 007617204a6a4ee1d197a66ffbfde8bef70fedf2c2a3991f78e53bb6ff9a5113

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