Malicious PDF — malware analysis report

Static analysis result for SHA-256 806453b5e5522e21…

MALICIOUS

PDF

79.8 KB Created: 2021-03-22 10:40:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: e7ac14a5e93b7ceaf93f9860ae6e5723 SHA-1: 63b889f88b36a932d17ec521ea113a560960e6f9 SHA-256: 806453b5e5522e21da64d9ac8904aee30cc5cec6d84183bb99aaaabddad8a282
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable domains and link farms, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to a search query, directing users to external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://bologen.ru/wix?keyword=does+frozen+hot+chocolate+have+caffeine PDF link annotation
    • http://boforotaje.mywebcommunity.org/70425253078.pdfIn PDF document text
    • https://cdn.sqhk.co/dubibuwa/jNNnGTC/65337126861.pdfIn PDF document text
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/romab-vifupig-kuxifijoxob.pdfIn PDF document text
    • https://cdn.sqhk.co/supetudoti/blG7jjj/tolowur.pdfIn PDF document text
    • https://nukawidizuzaxep.weebly.com/uploads/1/3/3/9/133997642/700428.pdfIn PDF document text
    • https://cdn.sqhk.co/lixipadiwel/P9gf3R6/classic_cars_for_sale_under_5000_dollars.pdfIn PDF document text
    • http://lenulari.mypressonline.com/how_to_use_abacus_for_addition_and_subtraction.pdfIn PDF document text
    • http://alsamcctv.com/642190330302jmmo.pdfIn PDF document text
    • https://cdn.sqhk.co/dubagelojuwe/smGsgi4/munagujuzomerabewodavepik.pdfIn PDF document text
    • https://petenugilamabo.weebly.com/uploads/1/3/1/4/131453278/vexel.pdfIn PDF document text
    • http://rameautbxy.space/free_trumpet_sheet_music_easynjbsg.pdfIn PDF document text
    • http://azorocheat1.xyz/how_to_set_up_glacier_bay_water_dispenseruuiox.pdfIn PDF document text
    • http://akfb.online/tekken_7_iso_ppsspp_android_downloadu426z.pdfIn PDF document text
    • https://cdn.sqhk.co/linidivez/Fhe3zDE/prepper_supplies_at_costco.pdfIn PDF document text
    • https://pemiroma.weebly.com/uploads/1/3/1/3/131383733/tanuxobe.pdfIn PDF document text
    • http://in-step.shop/kerala_university_msc_zoology_syllabus87rlb.pdfIn PDF document text
    • http://lowabunuzoxa.getenjoyment.net/the_argonauts_maggie_nelson_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zedebegeku.myartsonline.com/xunizidukopefovijexorolaz.pdfIn PDF document text
    • http://vepilezora.epizy.com/android_studio_gradle_error_log.pdfIn PDF document text
    • http://pewafinapotoja.rf.gd/nijajepukilamibapanodi.pdfIn PDF document text
    • http://nenefebazowepo.rf.gd/44842229064.pdfIn PDF document text
    • http://fojakosi.atwebpages.com/tojizokiwamekis.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/cuanto_es_1_pulgada_y_media_en_centimetros.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/4757120948.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/hek_bonusheft_2018.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_off0000f804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF804 5076 bytes
SHA-256: fdee97792680ced11e150a62c867fe9abc371f8a6f688a372b13f9e9af3407b6
font_01_sfnt_off0001095b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1095B 11908 bytes
SHA-256: 4a420a8acb493a852cf4eff588ce10fb04b8a312d925d48dd4191b797fd6b3b6

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