MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to various compromised websites, likely serving as a lure to download a secondary malicious payload. The presence of multiple PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9031
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/i4n7m8noggtv5bv6l8nmf35k40/28781622396.pdf In PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/6g7nlv6ioe8j01n84k3ra6m925/88928278278.pdfIn PDF document text
- http://fzsvybbs.at/userfiles/file/tekaduni.pdfIn PDF document text
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078ef3e25806---68180854423.pdfIn PDF document text
- http://www.orhancoskun.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8528a6b90---vapifajokum.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/r06cdkllhat285b9pn676n7orm/85784603638.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16088de54addef---23868910942.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607a379af2af7---74404053464.pdfIn PDF document text
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/3343ama8s0ah59bgnp7v604007/32612016060.pdfIn PDF document text
- https://palcev.ru/userfiles/file/12575305401.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/dck7bkbu8ks0jmqumuip78unei/xowitekinilusidijogusem.pdfIn PDF document text
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/be90a11746d79b41cf7d45d50cc82c47/zaxuwexaxosewuwivap.pdfIn PDF document text
- http://crediramasrl.it/public/file/4145453871.pdfIn PDF document text
- http://abaj.cz/UserFiles/File/53461526606.pdfIn PDF document text
- http://157.230.241.115/image/upload/File/goloxomuvim.pdfPDF link annotation
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/cc139746561bb4b3e1160d2c7907ddd5/kubovibipetakixuwupeji.pdfIn PDF document text
- https://afayl.com/userfiles/file/453077593.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7a26fef43c---tujokoliferepekuxitapexo.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9862291a7d---57326453447.pdfIn PDF document text
- http://jhroseclassof77.com/clients/45984/File/83008260804.pdfIn PDF document text
- https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/4a324707fd8ec2d76d611f69ace141ce/6670396715.pdfIn PDF document text
- http://hotstamping.pl/files/file/83358186907.pdfIn PDF document text
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9e450df3d---fotepumedano.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/3elhnuijiikn0e2847j7lq004s/tenol.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608125154ef41---xasasibasajerufi.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/e8c2301ec5b478df7c16bbcbf2c1a956/masixolalaxamupi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=prentice+hall+gold+algebra+1+teaching+resources+answersPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00027013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27013 | 11028 bytes |
SHA-256: 2c9ac4d4838aa56f8bbc470edcc75343b3ba7c4538276f7d72aac972dc38a597 |
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font_01_sfnt_off0002898a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2898A | 16088 bytes |
SHA-256: 21ff46de98f0902b53a5c0c946916a1dd4551bbaa4204463728281c4bc54dda8 |
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font_02_sfnt_off00029ec2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x29EC2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off0002b6d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2B6D4 | 18844 bytes |
SHA-256: fc498142fe7672b7ad4ad35a20e76e8847856a241dee7a0e06b9def5f872f94d |
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