Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e3eafdab72a371f…

MALICIOUS

PDF

67.0 KB Created: 2021-03-29 20:42:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e1a10874fda76f8737486d2d3fc6396d SHA-1: b7beef4e268fa8ac7aa4409b035491aaffe65660 SHA-256: 6e3eafdab72a371fbb6e53089f1f6c30cde58ebf68d7863de302794d65d8ab17
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which are SEO-optimized and point to potentially malicious content, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically phishing or trojan distribution. The document body, though heavily obfuscated, suggests a lure related to an 'Evertale monster evolution guide'. The presence of embedded URLs and the overall structure point towards a malicious document designed to redirect users to harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/123?utm_term=evertale+monster+evolution+guide PDF link annotation
    • https://cdn.sqhk.co/puzadowoke/qJjagh0/mx_player_apk_for_samsung_smart_tv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476927/normal_601a5540c187d.pdfIn PDF document text
    • https://fozabezadako.weebly.com/uploads/1/3/4/6/134639332/momeveko-badum-kufunezazeda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392872/normal_5fd0816a06c8f.pdfIn PDF document text
    • https://cdn.sqhk.co/jinubodilev/9SPjggi/97373712936.pdfIn PDF document text
    • https://disemorabegelam.weebly.com/uploads/1/3/1/3/131383982/purawul-kalizujax-bafumilosas-vidivasaxo.pdfIn PDF document text
    • http://birodavaz.22web.org/2019_kalnirnay_calendar_marathi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450260/normal_60470b6adb202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491173/normal_600f79f571970.pdfIn PDF document text
    • https://cdn.sqhk.co/fetesulatol/ojhv6gh/86490079955.pdfIn PDF document text
    • https://tafesexetunikej.weebly.com/uploads/1/3/4/5/134576544/7487366.pdfIn PDF document text
    • https://gipewiraxo.weebly.com/uploads/1/3/5/3/135334151/soligub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477376/normal_5ff2acacbf4ee.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/tawosutosuxi/how_to_calibrate_scale_without_500g_weight.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/gijaxavabolala.pdfIn PDF document text
    • http://muvaxuzuf.rf.gd/whatsapp_video_tik_tok_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/54522661169.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/kokima.pdfIn PDF document text
    • http://kevawiposiwa.rf.gd/applied_cryptography_second_edition.pdfIn PDF document text
    • http://tuzotulerijenej.rf.gd/duwolivulewuju.pdfIn PDF document text
    • http://mujunuge.rf.gd/american_cursive_handwriting_download.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/35291777661.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_off0000c865.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC865 5164 bytes
SHA-256: 4ca037abb837f3a2a914c5e9ef3af5481d7e125de8f81e9740ce4d06ba2f4a78
font_01_sfnt_off0000d9de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9DE 10272 bytes
SHA-256: 409c09fde1755f308a72e9b9e2c4cc62ebd2fae9aa69fa4d43634f7a8b1e255a

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