Malicious PDF — malware analysis report

Static analysis result for SHA-256 117e419579f31a23…

MALICIOUS

PDF

77.9 KB Created: 2021-03-07 14:44:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 9206ae2fd165449018509dcb32f7e6d2 SHA-1: fe88288789870d5792264d485751c7b8158a3dac SHA-256: 117e419579f31a238c99ea799b2348e42c2705c3813f4a0dc3709ee860f77678
186 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to search keywords, reinforcing the lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://soxebez.ru/wix?keyword=billie+eilish+snapchat+videos PDF link annotation
    • https://cdn.sqhk.co/nizivatitogu/ohaFpOE/winking_lizard_restaurant_peninsula_ohio.pdfIn PDF document text
    • http://walletelectrum.buzz/wugadiwumrg7j.pdfIn PDF document text
    • http://goldalbum.ru/14960094216qb074.pdfIn PDF document text
    • http://reveruverof.medianewsonline.com/11951026244.pdfIn PDF document text
    • https://cdn.sqhk.co/wosipuvetot/hewojfX/juketugodidazujazogu.pdfIn PDF document text
    • http://kmplitka.shop/12506833125l00nt.pdfIn PDF document text
    • https://cdn.sqhk.co/tobizopowebo/dmjjjjr/92478268806.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/how_to_play_walk_dont_run_on_the_guitar.pdfIn PDF document text
    • http://podjem2.club/zopajejeth2ey2.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/74592328755.pdfIn PDF document text
    • https://cdn.sqhk.co/dixejetafap/4SBictE/video_player_android_terbaik_tanpa_iklan.pdfIn PDF document text
    • http://tafiwon.mywebcommunity.org/rivamabumugunevir.pdfIn PDF document text
    • https://cdn.sqhk.co/jimevexir/jhPhdhg/gavipi.pdfIn PDF document text
    • http://shoes-storie.club/romeo_and_juliet_law_caseslr8g2.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/araby_james_joyce_sparknotes.pdfIn PDF document text
    • https://cdn.sqhk.co/zapakolozu/uegcjbY/walkthrough_for_ice_scream_neighborhood_horror_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/g7ijjby/60584672918.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/eghhjic/foxawanuzejado.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d9d3f88-805a-4132-a8f4-a00b12f65552/salems_lot_1979_full_movie_putlockers.pdfIn PDF document text
    • https://03ca3561-abfe-48ca-9b59-b1b2b77f8126.filesusr.com/ugd/1af49e_b010e364c7c747c98c257bf4fe9dbdee.pdf?index=trueIn PDF document text
    • https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_ee8bdefaedb149c8a780a4835510ac1e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc14e9b4-2f0a-4b4e-93e0-0a954de33991/xadavo.pdfIn PDF document text
    • https://0491f86b-060d-4f4a-be23-b0d01488777f.filesusr.com/ugd/faa7ef_06653cdf8cc145c38fb8b0b221655b3d.pdf?index=trueIn PDF document text
    • https://6bb2b61b-82bf-473b-8365-63ddb02ddbdd.filesusr.com/ugd/d55797_02cddf3984d747c59f9c4f0b9ab5046e.pdf?index=trueIn 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_off0000f42c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF42C 5176 bytes
SHA-256: e3c50a72dfedbc8586f5cca0ff1c3ea886997ef13d0e08d3c1d3ecc0c8e81a33
font_01_sfnt_off000105cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CC 10504 bytes
SHA-256: 3f88dfea6e19e3d959015cfff6c8bb11f073c9daaf1d354ad1a4e3ebcf53d753