Malicious PDF — malware analysis report

Static analysis result for SHA-256 04294cb9f4c2fa93…

MALICIOUS

PDF

93.7 KB Created: 2021-07-01 18:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4f32aec15e23895a94ac4ac2d4ed407f SHA-1: 6a4b7801aa028f7b1459cec016144242ee98a65c SHA-256: 04294cb9f4c2fa93c91cad7f20567e4c8b7adec05f3dc07d1cc8056b21c2afd4
196 Risk Score

Malware Insights

MITRE ATT&CK
T1059 Command and Scripting Interpreter T1566.001 Spearphishing Attachment

This PDF document exhibits malicious characteristics, including a high ML classification score and ClamAV detection as a phishing trojan. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document likely instructs users to copy and paste content into a command-line interface, a common tactic for executing malicious commands. Numerous URLs are embedded, many pointing to compromised WordPress sites, suggesting an attempt to host or distribute further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9918

Heuristics 7

  • 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
  • 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://crewmak.ru/uplcv?utm_term=c%2B%2B+clear+console+windows
    • https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/vr178sb14eu09bkhc3du06bic5/508183222.pdf
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/1b6802a675842e065522d22b18edd49b/bibuwunexifebadadonu.pdf
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a23a566fdb---wemepepugalosutu.pdf
    • https://xn--fct8ml6mwue.tw/uploads/files/kofegan.pdf
    • https://kham.vn/userfiles/file/noperevinomifikisejow.pdf
    • http://phonphangschool.com/upload/files/57053410459.pdf
    • https://www.erenang.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607db37fa7d5d---98343628305.pdf
    • http://refta-bg.com/userfiles/file/menukifopiriteniluder.pdf
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/4ce89b632ccee4a2f4123b6b33b756e8/67455885993.pdf
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/90f144uu1eq9tuejfaoogvidtv/82853395198.pdf
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609689e4394a0---54744728815.pdf
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d6c5ab25a---71207536375.pdf
    • http://sanarina.de/ckfinder/userfiles/files/67240191732.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/dccd90a33af7f38b05c10da12d5633a2/luwudek.pdf
    • https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/d7adb2cfb920257b49ff2ab5f72f455d/lupud.pdf
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fad925e2d---napoxen.pdf
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097ca942671f---82864819979.pdf
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096cdedeb3e6---nosepibebenikuveburomaja.pdf
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160989e4fbbf49---povawokevugim.pdf
    • http://romangruszecki.com/uploaded/file/2172546072.pdf
    • https://bishopsalamatkhokhar.org/userfiles/file/96197423935.pdf
    • https://goez3.com/10005001208290177/ckfinder/userfiles/files/54548719503.pdf
    • https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/96c5452a735e08fb0333d62733708728/fafuto.pdf
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/a7a23014d26db3ab6a5c1be1d1238203/80460340076.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f34e.bin
099c9d326d1ccfbde180c38d12cb61cbc087e3a7b5ac1095da67673075e236f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF34E 18300 bytes
font_01_sfnt_off00012416.bin
c23a78767c17a1614fb89d96e2d4a0bb3f466bbc82d371f47e982e9626fb525c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12416 16084 bytes
font_02_sfnt_off00013946.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13946 16792 bytes
font_03_sfnt_off0001515d.bin
7d3e2faddbf684f443fa5d731db3f85fea3684276bce9a9e21bd8129b5c40d23		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1515D 10384 bytes

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