Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9ed3eba35f0b6d…

MALICIOUS

PDF

82.0 KB Created: 2021-03-17 11:06:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: c5a19653dca8c87c0aa7f9e0d8d6d06c SHA-1: d34c57b9e61e711dbde810682bc302ff085c83a5 SHA-256: 0e9ed3eba35f0b6dbbe676e69885b78778faf871a6808202e64050d1191601e4
136 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. The presence of a PDF_SEO_UTM_REDIRECTOR_LINK heuristic firing suggests the document is designed as a phishing lure, specifically for free downloads. The embedded URL, https://baarspo.ru/123?utm_term=android+emulator+for+windows+10+low+ram, likely serves as the malicious link presented to the user. No scripts were extracted, but the overall structure and heuristics point to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/123?utm_term=android+emulator+for+windows+10+low+ram PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4453100/normal_600829981a6b2.pdfIn PDF document text
    • http://pojapir.mygamesonline.org/south_american_countries_and_capitals.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496828/normal_602da0a725e7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417306/normal_60354f521a282.pdfIn PDF document text
    • http://wititabeg.22web.org/lemek.pdfIn PDF document text
    • http://julowemireteso.22web.org/an_applied_approach_to_macroeconomics.pdfIn PDF document text
    • http://lakurix.22web.org/english_spelling_dictionary_software_free.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://uploads.strikinglycdn.com/files/06a376df-a536-44ed-acce-525e95c6525a/ez_go_golf_cart_battery_charger_wiring_diagram.pdfIn PDF document text
    • http://ligumawi.epizy.com/bullet_force_hack_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63cefca5-be45-4724-a749-cf643fd1980e/3d_visualizer_salary_in_dubai.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/free_splash_screen_generator_android.pdfIn PDF document text
    • http://lulovijolezon.epizy.com/degeminixebaf.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/dizanuvexumadafonap.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/alphabet_writing_practice_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gurafoga/star_wars_origami_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/42695326358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9409b33b-ebff-417e-affd-58c5399f4479/cateye_cc-mc100w_price.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/applied_linear_statistical_models_5th_edition_instructor_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/tozugenubalasezomedosuw.pdfIn PDF document text
    • http://rodedewezijore.atwebpages.com/if_giorno_was_in_part_6.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/xagij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8aefddd1-0496-4f75-826a-0aded370aebe/39185816919.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_off0000f410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF410 5208 bytes
SHA-256: e07718c1f78fabc72856c4b0df2c3e4c671b1470638dc6c27f943ff90dd5edaf
font_01_sfnt_off000105b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105B5 10816 bytes
SHA-256: 3d09ccdeedf018a9cf32ddb850aea0597a5ed027d1594e36afeaabc0f96f1f27
font_02_sfnt_off00012a86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A86 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2