Malicious PDF — malware analysis report

Static analysis result for SHA-256 250e93e813341d36…

MALICIOUS

PDF

90.0 KB Created: 2021-03-21 08:05:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 342254ada070d3a33dbaaa2628573c59 SHA-1: 8aff71eeb1fec119ad2f50660d129e80cf2af255 SHA-256: 250e93e813341d36c39c082e8ec64fd865e41839e81747d28469a46d4bf54934
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9994

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://seumenha.ru/wix?keyword=fujitsu+mini+split+manual PDF link annotation
    • http://jebebixazonutug.mypressonline.com/canon_powershot_a720isdriver_download.pdfIn PDF document text
    • http://minesaxofunawi.getenjoyment.net/color_code_personality_test_white.pdfIn PDF document text
    • http://xofofumireke.mypressonline.com/38341454138.pdfIn PDF document text
    • http://euroshopme.site/jiriwiz7vx9.pdfIn PDF document text
    • http://reawont.online/le_marais_paris_restaurant_guide917uo.pdfIn PDF document text
    • http://jukavoluv.iblogger.org/e_l_c_b_ka_full_form.pdfIn PDF document text
    • http://wixosefimaba.scienceontheweb.net/94990954029.pdfIn PDF document text
    • http://jegoxebiz.iblogger.org/how_to_use_alphatrak_2.pdfIn PDF document text
    • http://sowaviwexurejo.22web.org/fruitless_and_wasteful_expenditure_guidelines.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/ef82c690-b3d9-40b6-9611-e4dfbb605159/96975182306.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e56704db-26ce-4928-baf4-c0fb7df54e7b/xifufanufini.pdfIn PDF document text
    • http://pugomifo.epizy.com/68113629298.pdfIn PDF document text
    • http://xutududigerupe.epizy.com/singer_futura_xl_400_reviews.pdfIn PDF document text
    • http://giwalawap.epizy.com/49693925661.pdfIn PDF document text
    • http://bozivexaterem.epizy.com/japesoxupujomu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02038553-f6e7-4be2-8e76-ed89773951cd/dd_5th_edition_1st_level_adventures.pdfIn PDF document text
    • http://tufigeburevizi.epizy.com/mills_and_boon_audio_books_free.pdfIn PDF document text
    • http://xuwugufufokiti.epizy.com/zoxexufipasogululiroxaze.pdfIn PDF document text
    • http://loxeputogojew.rf.gd/how_much_does_an_ipad_screen_repair_cost_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/333795ee-9525-4c82-badc-0aeb35d9c635/zevinewopedazalukulo.pdfIn PDF document text
    • http://gevokibip.epizy.com/broiler_poultry_production_manual.pdfIn PDF document text
    • http://jujiruweji.epizy.com/kasodanu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001139d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1139D 4552 bytes
SHA-256: 76c1ba160fe424c618974fac123ca6163dff8aa534460b60e7cf7449a233ee79
font_01_sfnt_off000122e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122E5 12288 bytes
SHA-256: a92a436bf89e3098e3613e0e72e9397f64b43ee0eee5354d3d2181bc5ff960a3
font_02_sfnt_off00014ccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CCD 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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