Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5f0183bee916b8e…

MALICIOUS

PDF

92.0 KB Created: 2021-07-14 09:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d73b2c9337059ef15fc97ff21527b7aa SHA-1: a4469b30e06f6c02207613025c3fb3255be269f0 SHA-256: e5f0183bee916b8e06c26e033f6b435e505125f3d48e00dc343047e118f3b2d9
216 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam, likely intended to trick users into paying fees for non-existent prizes or parcels. The document contains numerous links to disposable hosting and compromised CMS upload storage, suggesting it is part of a larger phishing infrastructure. While no scripts were directly extracted, the PDF structure and embedded links are indicative of malicious intent, potentially leading to further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 http://fecoil.com/userfiles/file/bufuwuvamiwemabikivopuj.pdf
    • https://sportsht.com/userfiles/file/7070835830.pdf
    • https://avela.md/userfiles/file/46543704160.pdf
    • http://ahoba85.com/clients/2/26/26d353b61ac95a99d7df5001a3d58300/File/sasilekulo.pdf
    • http://ipjanah.ir/wp-content/plugins/super-forms/uploads/php/files/fpj46i8ijhke605bnts038d327/tutidakipufaratovar.pdf
    • https://pensiunea-escape.ro/ckfinder/userfiles/files/xilesokirowipupidelugema.pdf
    • https://lanna-flyingclub.com/ckfinder/userfiles/files/juzoritinado.pdf
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/ob0ir5gq8bus7u5hp0frcjqvto/49458262311.pdf
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/94b5177a3560b00747239654fc13e8c0/bepufakowubopag.pdf
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ba167df53---407695473.pdf
    • http://mastrodibaglio.it/userfiles/files/keferivozanovu.pdf
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a890d8261b0---vipeke.pdf
    • http://msslink.ru/userfiles/files/xidujisaporasunikixov.pdf
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/3krj1oih8alfcks9dt7fav88qk/96354125226.pdf
    • http://zerosquareonline.com/file/23580955993.pdf
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16079a54751492---razatobadokinu.pdf
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/6cpmv75n55la8viegdm1akkt13/sovetufaferowa.pdf
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160767ce03d348---29671643162.pdf
    • http://franklcalabreseattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8851295950.pdf
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160e379586cef5---82666628963.pdf
    • https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/6f8a717b2ee1ff4b1891c399e718dc75/47116425383.pdf
    • https://www.acetechnology.co.in/wp-content/plugins/super-forms/uploads/php/files/1t01264cn0896d4o29t55ekfua/90050027822.pdf
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607291b1b9800---16978756304.pdf
    • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/5dvo6rqpv70isln969q948odos/934701510.pdf
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607209c71e5a3---33258705724.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=registration+code+for+infamous+second+son+pc
    • 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_off0000f0a8.bin
c1a90e18fbd9f802377139f704ae346578cdab1349f1ea60934f73e84d1f5dc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0A8 3812 bytes
font_01_sfnt_off0000ff4d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4D 16792 bytes
font_02_sfnt_off0001175f.bin
0eb990cf4f760737f6694461f0efdae8e3950cc45929611fcf615d537c281ce4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1175F 18020 bytes
font_03_sfnt_off000146c3.bin
03c70f965d5218dd39c8babf3ff8f21ac070cb09efed28a978811cfd1155c21d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x146C3 11064 bytes

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