Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e4eabdfbab304ef…

MALICIOUS

PDF

90.4 KB Created: 2021-07-29 21:15:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: b01c027e3e6531854bf88da448d73fc6 SHA-1: 39e300545207ee8b107deac98c5c8c6d3ddaa570 SHA-256: 2e4eabdfbab304efb06367910e3b1964ef2e396cbb699818d0c386e3f4b481f5
236 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious. It employs social engineering tactics, specifically the 'ClickFix' attack, by instructing the user to execute commands via the Run dialog or a terminal. This bypasses macro security and likely leads to the download and execution of a secondary payload from one of the numerous linked URLs, many of which point to compromised WordPress sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9913

Heuristics 8

  • 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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/fbb3b42d8617f3994d978ce612e8ee75/84307580318.pdf In PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/4b0354b0340af456ac8c4bc9eb4c10ad/14169639525.pdfIn PDF document text
    • https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d04aa50fc---85318252720.pdfIn PDF document text
    • http://agama-rc.com/upload/files/lozuxusofe.pdfIn PDF document text
    • https://santchavarabed.in/ckfinder/userfiles/files/74854645677.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083925a64566---96689018095.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/gb2dfccksjcq8s9e02sqie3sqg/2962817891.pdfIn PDF document text
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/v3mnlfrtdas329sieboc3enpru/25530670301.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160871c57ce0dc---35111192235.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afff920a745---47109160921.pdfIn PDF document text
    • https://jaurrieta.net/USERFILES_JAURRIETA/files/dexipasejufawu.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/9abf7c4f57a241a32ed2ee65babc38ad/67032922970.pdfIn PDF document text
    • http://hrudolf.com/userfiles/piked.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e71874a2d97---xudix.pdfIn PDF document text
    • http://funperm.ru/content/file/53203407190.pdfIn PDF document text
    • http://nomaquito-travel.com/editor-images/52048110272.pdfIn PDF document text
    • https://perfecthospital.net/FCKeditor/file/97471429185.pdfIn PDF document text
    • https://glaze-metalart.com/upload/files/20590085608.pdfIn PDF document text
    • http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079abb2cd491---17913272306.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/n5qnfbobtnuutr9ujvf5n9gt1g/50959700104.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/2701dc20672036007038c0b7d33d2e71/jebaguduzebaluw.pdfIn PDF document text
    • https://jagamimpi.net/contents//files/1822382106.pdfIn PDF document text
    • http://hncastlecable.com/d/files/kuzazonemazikakobar.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bc140ba120b---zexupuxonu.pdfIn PDF document text
    • https://hgb.se/filer/file/goxamipax.pdfIn PDF document text
    • https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/22840d1b1cbaa2ffdd1cacd06350349f/dulavix.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+change+label+size+on+dymo+450+turboPDF link annotation
    • 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_off0000f894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF894 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000110a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110A6 17516 bytes
SHA-256: ffed2626f7d1f4645fe4aa676ea4a475d01a36ffa2573d82472caa026bfad991
font_02_sfnt_off00013e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E39 11640 bytes
SHA-256: 07d774fb13ceb4094cf40e218590bad688a603225b4e5fdad13b41fd7e1a99df

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