Malicious PDF — malware analysis report

Static analysis result for SHA-256 597e3965deecbfb2…

MALICIOUS

PDF

79.9 KB Created: 2021-05-17 23:45:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5fc093c304a3877e859cbb1fc184ff99 SHA-1: 17b88065df565080b38285938495f090f49285c3 SHA-256: 597e3965deecbfb2b902027e6f63012f86ba45f4a0d2182feb92188cd1011635
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/strik?utm_term=songs+played+in+twist+of+fate+season+1+full+story PDF link annotation
    • https://putoluvutawubu.weebly.com/uploads/1/3/1/4/131437806/pomakox.pdfIn PDF document text
    • https://nonexivibofopuv.weebly.com/uploads/1/3/4/6/134603010/lexesusojufo.pdfIn PDF document text
    • https://gumabudisipinef.weebly.com/uploads/1/3/2/7/132712006/pubilililawepe.pdfIn PDF document text
    • https://sutesesa.weebly.com/uploads/1/3/4/8/134871168/7284655.pdfIn PDF document text
    • https://guroposuz.weebly.com/uploads/1/3/4/4/134469393/5690452.pdfIn PDF document text
    • https://movireralu.weebly.com/uploads/1/3/4/8/134879142/raluramowiwu.pdfIn PDF document text
    • https://vagezelez.weebly.com/uploads/1/3/0/8/130873856/27407.pdfIn PDF document text
    • https://gunagabivap.weebly.com/uploads/1/3/4/8/134863042/pesepobimazogivujur.pdfIn PDF document text
    • https://zipufalazuviw.weebly.com/uploads/1/3/1/8/131856517/kalutazo-vuwigesego-liburatopa-dijexibeliju.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/muxegeza/14721624461.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/wajimudegitalebemevosefal.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/mozidolenigo.pdfIn PDF document text
    • http://tunawibiga.rf.gd/little_fires_everywhere_book_overview.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/antarctic_ice_sheet_growing_or_shrinking.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/73150804852.pdfIn PDF document text
    • https://s3.amazonaws.com/goveruduzewoxu/cheat_india_mp4_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/top_10_battery_saver_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pirofopafu/54240897980.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/worksheet_english_year_4.pdfIn PDF document text
    • http://gizimup.epizy.com/autism_spectrum_disorder_treatment.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_off0000fc13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC13 5556 bytes
SHA-256: b43edfb8b3f02cbc31d4c7405a160a7b083e78d6004d3d2dc7920a190ba7c027
font_01_sfnt_off00010f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F2A 10264 bytes
SHA-256: 6079dabb4b1feaf6781c3aca7b9d574fc5ac6303c3926fe2e31b022b2e895e2f

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