Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2a69218d043a08…

MALICIOUS

PDF

76.9 KB Created: 2021-03-30 16:16:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 01c0612c4a21e723f2b5aa38008169ba SHA-1: 4df8e0c6be37f9d56e7210b4ec668deedc7dbcab SHA-256: ea2a69218d043a08ca3775f43fb982da2ebec66324e444a7a73a908bf84c414f
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

This PDF document was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection, indicating malicious intent. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic suggests the document instructs users to copy and paste content into a shell, a common technique for executing malicious commands. The presence of external URLs, such as 'https://xezojetit.ru/award?keyword=whirlpool+dryer+repair+manual+pdf', further supports the phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://xezojetit.ru/award?keyword=whirlpool+dryer+repair+manual+pdf PDF link annotation
    • http://energytik.net/mechanical_engineering_technician_salary_in_south_africa4a6q7.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/iuhjItp/rebobobubo.pdfIn PDF document text
    • http://dafujopinax.22web.org/16566312467.pdfIn PDF document text
    • http://perevod-card2card24.site/41578159731ki70l.pdfIn PDF document text
    • http://lisolu.org/who_started_the_american_navyfqi3p.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/KgfwhcA/867176464.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxumududu/Ryic323/36188577470.pdfIn PDF document text
    • http://mail-autoscout24.net/226584104033qp4m.pdfIn PDF document text
    • https://cdn.sqhk.co/milevatomog/9cjhQW1/zasud.pdfIn PDF document text
    • http://wojozaxoxofomel.22web.org/just_like_animals_video_song.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/bIdqRGU/pebivulekusaledagidabowej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/24515b0d-177f-4f35-86bc-8afc9a7e5ce9/76169148438.pdfIn PDF document text
    • http://zafujedimuf.epizy.com/54808347684.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0a12a1f-0b5b-4f5e-ac4c-2d5976c33f35/how_many_carbs_in_taco_bell_nachos_supreme.pdfIn PDF document text
    • https://a5fc3680-5c08-4cda-bd6c-abaa3bdf25bc.filesusr.com/ugd/ea5d7b_87b73b1072d74ce3a5569284105e44b1.pdf?index=trueIn PDF document text
    • http://dajolebewun.epizy.com/holiday_in_death_read_online_readsbird.pdfIn PDF document text
    • http://pagiwufuvefukuf.epizy.com/nolal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7f313af-ccd2-4223-9d8f-3bdb1116c532/wefakatabonijovimezesowab.pdfIn PDF document text
    • http://polexunew.epizy.com/data_analytics_guide_for_beginners_introduction.pdfIn PDF document text
    • https://b0c090b1-cb02-46d8-8a69-3fb9d82636b6.filesusr.com/ugd/4dbf3f_899bdd8dd54f45359350647b7ad6a99e.pdf?index=trueIn PDF document text
    • https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_d116520c70ff487db199170ba78e86e4.pdf?index=trueIn PDF document text
    • http://kateporabub.epizy.com/14117778799.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b102c22e-b46e-40e2-b47d-3ca45fe467e4/how_to_purchase_stock_online_for_beginners.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a7eeabb-69b1-4d0b-bfac-25fd11241860/troy_bilt_21_push_mower_reviews.pdfIn PDF document text
    • http://pidosowot.epizy.com/50434104339.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_off0000eea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA6 5216 bytes
SHA-256: dd7b9f331530838e14e00221faa63983fef809809d870676ae1dd4ad29b313c3
font_01_sfnt_off0001004e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1004E 11076 bytes
SHA-256: ec57ba3b23b04aa3e2a7ad5cbbacd278ef4e1f43f87a6c1fb557efd7bb3f7471