Malicious PDF — malware analysis report

Static analysis result for SHA-256 80ebacc72175cf47…

MALICIOUS

PDF

69.8 KB Created: 2021-04-07 19:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e7a9940cfac689a80888414ef08d2043 SHA-1: 5133bf3cf32bf29e65fa3ad3847b885035da34c4 SHA-256: 80ebacc72175cf479581f1d291b7be4d07d212aac1cd0a63006b3293382cb32c
66 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by 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 0.9996

Heuristics 4

  • 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://jumiwimov.ru/wix?keyword=ecology+eoc+review+answer+key PDF link annotation
    • http://siwosupegejolop.medianewsonline.com/90749230473.pdfIn PDF document text
    • https://cdn.sqhk.co/dewufidabo/Bjjidij/vavavuponole.pdfIn PDF document text
    • https://cdn.sqhk.co/runenuti/a5Ayjgg/facebook_lite_apk_version_history.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/EjhgfUu/bizumebevisejulezorina.pdfIn PDF document text
    • https://cdn.sqhk.co/padezeda/iiicjc8/crazy_ramp_stunts_free_car_driving_games_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kozosorole/ihh8ghf/48222796124.pdfIn PDF document text
    • http://lejifip.sportsontheweb.net/55001509292.pdfIn PDF document text
    • https://cdn.sqhk.co/lawafopugu/D9q5Sje/63438417252.pdfIn PDF document text
    • https://cdn.sqhk.co/vekokoze/j5zIyjc/80420008159.pdfIn PDF document text
    • http://kirudikegopoded.sportsontheweb.net/80661756385.pdfIn PDF document text
    • http://baugroup.info/how_much_money_to_set_up_a_hedge_fund3tbg6.pdfIn PDF document text
    • http://wamipivifubape.sportsontheweb.net/lulisugofibamedivofogaze.pdfIn PDF document text
    • http://ladyso.ru/fupunarazepugopulu8knch.pdfIn PDF document text
    • http://todayshop.website/345665536444hp2y.pdfIn PDF document text
    • http://usmileofficial.site/bad_genius_sub_indo_1080pseij4.pdfIn PDF document text
    • http://konobemozitu.iblogger.org/94451477930.pdfIn PDF document text
    • http://gofadivus.mygamesonline.org/.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mokixetat/2014_jeep_grand_cherokee_limited_oil_change_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/gilanafejosirazok.pdfIn PDF document text
    • http://kenuzuwemonuda.epizy.com/android_tv_bester_browser.pdfIn PDF document text
    • http://jomevove.epizy.com/zozoxovuvopazuzasasifofix.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC834 4948 bytes
SHA-256: 25665febd6f0fe786da9ddc7f3341fb17d377ed2dd16ff2bb023977a7923d71b
font_01_sfnt_off0000d925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD925 10376 bytes
SHA-256: aa64a491d907a7f2491e299f7daf63fdbd382f21c1b78041c19c1d229382a74a
font_02_sfnt_off0000fc8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8B 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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