Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44e2ae35a73cfab…

MALICIOUS

PDF

80.2 KB Created: 2021-03-17 13:33:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f560591ad229b04b77aba59a93137bf5 SHA-1: d4923c72122e229c2a18991b32eb6b6fcc98c395 SHA-256: d44e2ae35a73cfab54792eb45f772e115ac9a9aeab5d27cb05900edd63e528c1
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit users by presenting a seemingly innocuous topic to mask a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nipisod.ru/strik?utm_term=how+to+set+tide+on+g+shock
    • https://kovorugoza.weebly.com/uploads/1/3/1/3/131383314/4906143.pdf
    • https://jipunusib.weebly.com/uploads/1/3/0/8/130813609/gemubezis.pdf
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/fonetetagu.pdf
    • https://cdn.sqhk.co/kezulegol/RJPQm11/emergency_ringtones_free_download_telugu.pdf
    • https://static.s123-cdn-static.com/uploads/4417648/normal_5fe55db765612.pdf
    • https://cdn.sqhk.co/mivivezar/r9XShjL/vodka_lemonade_recipe_for_a_crowd.pdf
    • https://fafodedok.weebly.com/uploads/1/3/4/6/134602811/33e36.pdf
    • http://jivobomewez.22web.org/87918471885.pdf
    • https://wojaxesisitofem.weebly.com/uploads/1/3/4/7/134717171/dbae156e6610f.pdf
    • https://cdn.sqhk.co/pobopuwubox/higeEic/sonny_liston_adopted_son_daniel.pdf
    • https://static.s123-cdn-static.com/uploads/4405437/normal_6000955da808c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pumuroxojab.rf.gd/why_do_vegetarians_not_eat_gelatin.pdf
    • http://vepilezora.epizy.com/mufezakenikamobaxerovumeb.pdf
    • http://bavidatesudujig.epizy.com/picsart_fullpack_gratis_2018.pdf
    • https://s3.amazonaws.com/kudefem/virdi_access_control_software.pdf
    • http://renabije.rf.gd/dagunura.pdf
    • http://fafinonez.rf.gd/nakew.pdf
    • https://s3.amazonaws.com/goveruduzewoxu/como_crear_una_hoja_de_vida_en_sigep.pdf
    • http://rilowoxex.rf.gd/rimobamazajej.pdf
    • https://s3.amazonaws.com/nagudo/bhoothnath_movie_songs_pagalworld.pdf
    • https://s3.amazonaws.com/bodajaku/bissell_cleanview_swivel_rewind_pet_upright_vacuum_reviews.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_off0000fdb1.bin
cdb6335f5f5b20466f757202abed8311e13235d28bc2da86d0388bc4c796a803
pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB1 4980 bytes
font_01_sfnt_off00010eb5.bin
61fcafc1d3eaa3388582b832c9966a2b056e6f3962029bf68f7dbf4564b59171
pdf-font-stream PDF embedded font (sfnt) at offset 0x10EB5 10732 bytes