PDF malware analysis — malicious · fe9ff446ebd4fd0a

MALICIOUS

PDF

89.8 KB Created: 2021-06-30 08:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14

MD5: 4782ce02f3f15722f90299dc65a4340f SHA-1: 3293d0c7f74d72180bee9e7d0f9e0bb34c0ad6c8 SHA-256: fe9ff446ebd4fd0a7978d29377f6fc2d895b2071531d73515bd77d0f7094fcaf

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these numerous links strongly suggests a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9822

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
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 http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb652705c0---13307544374.pdf In PDF document text
- http://christopherdallo.com/file/27051573251.pdfIn PDF document text
- https://itacademyindia.com/ckfinder/userfiles/files/tugefesifokovove.pdfIn PDF document text
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/558747d756fd1f008570ae472e6c746f/dawevofaminifitudapitav.pdfIn PDF document text
- https://binarbaid.com/public_html/userfiles/file/julasozowelimo.pdfIn PDF document text
- http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160928b957ebe5---29909854431.pdfIn PDF document text
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607acd2580424---51904971581.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bf2237716a8---xureleguwujukew.pdfIn PDF document text
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f0d55a1757---muwawesopunamop.pdfIn PDF document text
- http://bogelaipigeon.com/upload/file/nagadovabobunuzaw.pdfIn PDF document text
- https://prsnashville.com/wp-content/plugins/super-forms/uploads/php/files/35e2ff0ad7935d3df325e0f1c6acdcfd/46529125592.pdfIn PDF document text
- https://sakkestadbil.no/userfiles/file/fipedigiwemavofubadat.pdfIn PDF document text
- http://tryinvest.eu/userfiles/files/21533961828.pdfIn PDF document text
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160ace7297eaae---88908898750.pdfIn PDF document text
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/858f88abfd1f8ba41da9c1eb87d76e20/rexanasobosizel.pdfIn PDF document text
- https://isleo.com/i_photos/file/3417092248.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609b426d492b0---29771348337.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/f11c390ca5ea63103e5f78c422254f1b/zejenedetu.pdfIn PDF document text
- https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/288g0obpl33847j7dmvkpqfbkl/66975733921.pdfIn PDF document text
- http://studiotecnicoprato.eu/userfiles/files/gaberaja.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd0bf36835---sexewepijopupejazu.pdfIn PDF document text
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/94a44mn2v5bbrqkidjk40nniea/72933468795.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f17c972025---ditawubidalugajupen.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160be694ea2a52---gipusa.pdfIn PDF document text
- http://www.deco-interieure.com/userfiles/file/netew.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850d7229157---10201227718.pdfIn PDF document text
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/97d2904995839ffbb4613aa191d44c60/rumitoverorinoperola.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=millie+bobby+brown+game+of+thronesPDF 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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f9bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF9BC	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off000111ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x111CE	17544 bytes
SHA-256: `a7d4952ab449acf8ad3026d797f4c374b843a170c42cd80846151e29e5bbb8e9`
`font_02_sfnt_off00014012.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14012	10992 bytes
SHA-256: `4872b820b83a826fa8bb650a9d1dd3e470c9630639041e0f708ddbb723dad040`

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