Malicious PDF — malware analysis report

Static analysis result for SHA-256 c78227603729a727…

MALICIOUS

PDF

72.2 KB Created: 2021-03-11 12:44:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 07ffa2b13ac2833edb1862d1c0cd87e0 SHA-1: b32e1208d0f8ece15f0841dd110516f5ead97996 SHA-256: c78227603729a727c4278e06f7ba29f0fc73184147fe01208fca36be6a34992e
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, with one prominent URL pointing to 'soxebez.ru' which is likely part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to a 'Bose stereo manual'. No scripts were extracted, but the presence of multiple external links and the overall detection profile strongly suggest an attempt to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://soxebez.ru/wix?keyword=bose+stereo+manual PDF link annotation
    • http://ujjjrrrrr.space/upkar_gk_book_downloadgembz.pdfIn PDF document text
    • http://fosireditoj.mygamesonline.org/jupuvogevexamopupun.pdfIn PDF document text
    • http://vurenosul.22web.org/block_form_letter_example_tagalog.pdfIn PDF document text
    • http://sanadewa.iblogger.org/esv_thinline_leather_bible.pdfIn PDF document text
    • http://fruitik.space/44929675914dqlay.pdfIn PDF document text
    • http://demask.fun/current_functional_measure_score5rn3m.pdfIn PDF document text
    • http://lasozenixirek.iblogger.org/a_midwifes_tale_book.pdfIn PDF document text
    • http://lnstagramverifiedsbadgesforms.com/86487749857ao6fi.pdfIn PDF document text
    • http://sqrab.top/62002642082quo3d.pdfIn PDF document text
    • http://pasetbs.xyz/bapazogotuvipufedewiqwjl1.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/dirt_devil_featherlite_bagless_upright_vacuum_belt_size.pdfIn PDF document text
    • http://sumigemag.mywebcommunity.org/86752384799.pdfIn PDF document text
    • http://vujadijijevi.iblogger.org/what_is_the_definition_of_socio_cultural_factors.pdfIn PDF document text
    • http://tdsevsvet.ru/what_are_the_8_main_principles_of_the_data_protection_actq1l1f.pdfIn PDF document text
    • http://ttop-shop.com/el_principe_maquiavelo_gredostnk7q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://234a0c07-d908-4261-bb83-16b3c96a9b04.filesusr.com/ugd/73e0e6_9ee160634ee04cc08204d004023d7aaa.pdf?index=trueIn PDF document text
    • https://1923692e-f727-4f58-80a8-3583160180e3.filesusr.com/ugd/c4ccc4_7b099042f2fb4474b17b20e258a8e9aa.pdf?index=trueIn PDF document text
    • https://4123e755-5e7e-4fb8-b167-49ba90d37259.filesusr.com/ugd/fd3290_0807e5f8cda742a0b7c561b6d804c277.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3242a468-2ce4-4a6f-9932-94f1afeea392/how_much_is_a_pot_pie_at_boston_market.pdfIn PDF document text
    • https://cee4a208-09ac-40e0-983f-4c2cc776acbe.filesusr.com/ugd/5ed537_fd0161db616147a2adbbb860b73221ab.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d3c7886-ff30-448d-ab43-f64b06cac763/how_to_reset_maytag_mvwx655dw1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07af649e-c254-4499-ad28-72bb66df3348/pakeladexisupepitejafuji.pdfIn PDF document text
    • https://ff4d9611-e7ea-45f2-85d3-f0b464ef817f.filesusr.com/ugd/48f461_1275a64e97c643309f89150ea116864a.pdf?index=trueIn PDF document text
    • http://wugorasu.rf.gd/engineering_drawing_abbreviations_pcd.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad9dc6e8-6fd5-4a43-bcb8-10e2218e207a/jack_reacher_never_go_back_book_summary.pdfIn PDF document text
    • http://xekazaz.myartsonline.com/67927450852.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off0000cd75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD75 6744 bytes
SHA-256: b29f9350a720d2da9dc50567d08c4a82684db1fcb28a47e3a5788345b392d808
font_01_sfnt_off0000de5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE5A 4880 bytes
SHA-256: c798b8ad101cb6047ffec14ca9a7c9a533cb55a77130ddc3d65925b02d64194b
font_02_sfnt_off0000eed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED2 10640 bytes
SHA-256: b5669f28496bb7a2d676b5fefe1819d7079f063ee64e77aea5551a822736449a

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