Malicious PDF — malware analysis report

Static analysis result for SHA-256 84beedc103ede146…

MALICIOUS

PDF

103.5 KB Created: 2021-04-24 21:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74ea1792d39609a1dfc192c4516c1891 SHA-1: 94766090cdb85d5b179eff48d1dfc4685c2c0152 SHA-256: 84beedc103ede14616b81c11e2a1d626aba4fd0f65d52d14effbc64ba4692a2d
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with one prominent URL disguised as a search query for popular media. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The PDF structure and embedded links suggest an attempt to redirect users to malicious content hosted on disposable domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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 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://ponafet.ru/strik?utm_term=attack+on+titan+season+2+theme+song+1+hour
    • https://static.s123-cdn-static.com/uploads/4418180/normal_5ff9b3447c92d.pdf
    • http://seviregigaguz.22web.org/stock_markets_open_at_what_time.pdf
    • https://cdn-cms.f-static.net/uploads/4413362/normal_604672d9d99a0.pdf
    • http://instapriz365.site/fisher_price_snugapuppy_swing_walmartgzfso.pdf
    • http://devlp.design/27859547215cxbs6.pdf
    • http://smartbright.club/ginkgo_tree_planting_guideyq87f.pdf
    • http://kyrgyztours.com/tamumokolulekefuvepg2oo.pdf
    • http://xtrading.buzz/54481597862f60y2.pdf
    • http://xapepinozex.22web.org/viraxenufu.pdf
    • https://cdn-cms.f-static.net/uploads/4459468/normal_602002041095c.pdf
    • http://reabook.online/93958264605h9ani.pdf
    • https://liziruji.weebly.com/uploads/1/3/4/3/134380663/dcbf295d8f46ef.pdf
    • http://winsbig.space/new_viral_my_video_organic_views_generator3iw15.pdf
    • http://soldonlittleton.com/messaging_apps_for_iphone_and_androidplzk8.pdf
    • http://lirituniwati.22web.org/68473802512.pdf
    • http://canonsburglake.org/dungeons_and_dragons_character_sheet_doc42kgt.pdf
    • https://pozefixinez.weebly.com/uploads/1/3/1/4/131454190/ketigak.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jupegojut.atwebpages.com/arutunian_trumpet_concerto.pdf
    • http://xafofeb.epizy.com/16868188569.pdf
    • http://fametofet.rf.gd/zizepuzixewow.pdf
    • http://koxolavomuzo.myartsonline.com/fedazaw.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000115f3.bin
0767994ea4b5a9614fa2cabb6c46b8254efc930e86be0a4e3f4f0e81081cf289		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115F3 6960 bytes
font_01_sfnt_off00012dbc.bin
be2d62e9389013e212d27c29d3a41e43aa72f57f6e1bd404aaffe9021a4c7b54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12DBC 5420 bytes
font_02_sfnt_off00014009.bin
f85de64e3a0ec6a460f9201a44f2bca346a4217cba8ffacebf3e45c682b0800d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14009 15444 bytes
font_03_sfnt_off00016e67.bin
c35d7739c08f9d3ebd00fcab5d49d1ad664733ca42023ca23786ac62e57eec7f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16E67 19464 bytes

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