Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ee94572e18e7641…

MALICIOUS

PDF

82.1 KB Created: 2021-09-22 11:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 1da15a9e27faac3f2b8dea96ba147979 SHA-1: 203b5747e82fa492f58ca3fe2e343c10f9295f66 SHA-256: 1ee94572e18e7641fcb170bf93cdaf5da70d179269455ac1294ce9c1e895c9be
196 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy and paste content into a shell, likely to execute a second-stage payload. The numerous embedded URLs suggest a link farm designed to redirect to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://allytemp.ru/uplcv?utm_term=how+to+listen+to+saved+voicemail+on+android PDF link annotation
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/2c4304e7de057be67f9f7bc90d7f745a/vixobuvefozaje.pdfIn PDF document text
    • http://mutitar.com/user_img/files/74837332105.pdfIn PDF document text
    • https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613272f5371b1---rozudavegigafatuluf.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/16148625dd5137---vadozazixofuvifupifako.pdfIn PDF document text
    • https://marlin-shop.ru/ckfinder/userfiles/files/soludejodiv.pdfIn PDF document text
    • https://pgp-puh.hr/fck_media/file/devenarojagar.pdfIn PDF document text
    • https://gelblighting.com/userfiles/files/nikonemudemot.pdfIn PDF document text
    • https://www.tristar-technology.com/ckfinder/userfiles/files/kawirufufadasalufiwepozow.pdfIn PDF document text
    • http://tandprotheses.com/ckfinder/userfiles/files/76423575301.pdfIn PDF document text
    • https://ms02bet.com/contents/files/70198760394.pdfIn PDF document text
    • https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/b73f3fc6a2e13bbf0b84a2f3abec24a7/3983697832.pdfIn PDF document text
    • http://identik.hu/editor_up/97754389713.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/161402c4c3095e---38764626799.pdfIn PDF document text
    • http://phucuongplus.com/upload/files/pijanelopi.pdfIn PDF document text
    • https://marathonblainville.com/userfiles/files/41260196293.pdfIn PDF document text
    • http://pretaporter-pegah.com/userfiles/file/11569291908.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394f593ffe1---23951171821.pdfIn PDF document text
    • http://thumpamonpally.com/userfiles/file/lejatulanig.pdfIn PDF document text
    • https://gencerenerji.com/resimler/files/kirekexewezel.pdfIn PDF document text
    • https://leciv.fr/uploads/FCK_files/file/jexadilak.pdfIn PDF document text
    • http://esangsok.com/upfile/files/39683657503.pdfIn PDF document text
    • http://gcoekmr.org/cukashmir/User_Files/imagefile/fozuxadu.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BC 18444 bytes
SHA-256: 63ffeba4694b36df04edb3d189ce50ac81068c57c716f3244da7c6324431a01a
font_01_sfnt_off00010a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A2A 10672 bytes
SHA-256: 22ff1ccacb87d6cd92210be607d7e2ed2777ec7e80b16590101b0b8a42d5752a
font_02_sfnt_off000122a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122A2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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