Malicious PDF — malware analysis report

Static analysis result for SHA-256 afeb1a1a5e097077…

MALICIOUS

PDF

78.1 KB Created: 2021-04-02 18:06:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: aba974c2969139d7f172ff4f0fb0aa54 SHA-1: 900e32ab8c45a735d0e1495881431020ca2b66eb SHA-256: afeb1a1a5e0970774104b6536d169c49c303c5ca6f2522bdd74e9e3fbb34ff71
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and 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 0.9992

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://midufefew.ru/wix?keyword=su+busybox+superuser.apk PDF link annotation
    • http://zeruxejobimal.mywebcommunity.org/92298960420.pdfIn PDF document text
    • http://suvuxivenorum.mypressonline.com/who_pays_the_settlements_on_judge_judy_show.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/askep_bblr_pada_bayi.pdfIn PDF document text
    • http://luxshop21.site/93867549607zftly.pdfIn PDF document text
    • http://redirerer.medianewsonline.com/12240573741.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/dikuwopenafi.pdfIn PDF document text
    • http://mupifojoxur.medianewsonline.com/amaravati_kathalu_download.pdfIn PDF document text
    • http://xxlmature.site/what_does_before_and_after_mean_in_cssw00nm.pdfIn PDF document text
    • http://sneakerspapa.store/57413983946xs57x.pdfIn PDF document text
    • http://guditoresuz.22web.org/mathematics_teacher_cv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kezitiw.epizy.com/reladapoledev.pdfIn PDF document text
    • https://694dae7a-2033-4a59-8b06-91ff4eec0774.filesusr.com/ugd/e1d58f_4872cb7466e5433cbbd2ea4cb6ced730.pdf?index=trueIn PDF document text
    • https://2e4b0ed6-c237-476e-b23b-7c95f147629f.filesusr.com/ugd/30e930_7aad0df45f574e259e240823a8b82d1f.pdf?index=trueIn PDF document text
    • https://d115d978-d96a-40c8-9764-5d959708fc35.filesusr.com/ugd/436160_72343516d2414d538df3ad3b1e33d487.pdf?index=trueIn PDF document text
    • http://sopavame.onlinewebshop.net/i_can_t_help_falling_in_love_with_you_ukulele.pdfIn PDF document text
    • http://nevabaza.atwebpages.com/construct_2_r275_license_file.pdfIn PDF document text
    • https://def05634-b969-4265-beeb-1e7d695e9a44.filesusr.com/ugd/6865ce_be681ef511ee402cbe4a8d4de4f8ba90.pdf?index=trueIn PDF document text
    • http://viwukekev.rf.gd/are_army_rangers_tough.pdfIn PDF document text
    • http://lazuletezofik.onlinewebshop.net/74623803941.pdfIn PDF document text
    • http://fulovefodib.epizy.com/treasure_hunt_clues_with_answers.pdfIn PDF document text
    • http://gogibesu.rf.gd/16545601508.pdfIn PDF document text
    • https://71b34470-2e60-4936-811b-9f14cb47e32b.filesusr.com/ugd/1dbbf0_30c409e0203f4082a7ed2adae4661e7d.pdf?index=trueIn PDF document text
    • https://64f3f273-fd79-4cea-bc15-92b2431614e2.filesusr.com/ugd/542254_6a769cd8c74e4c089cceae05a6eb98fd.pdf?index=trueIn PDF document text
    • http://tifilow.onlinewebshop.net/wrath_of_the_righteous_release_date.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF102 5288 bytes
SHA-256: d7606dd36d1b833e0d1bd94aed0b9ea199b7f1feae9e9d7df9a466a916c02ed0
font_01_sfnt_off0001031d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1031D 12132 bytes
SHA-256: 10e43e0abe8429dc1f3b79141d9862efd15c08122a21eaa2518f1da27fba1c1c

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