MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was identified as malicious by a machine learning classifier and ClamAV, detecting it as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to various domains, some of which are hosted on compromised CMS platforms. The presence of 'utm_term' parameters suggests an attempt to disguise the malicious nature of the links and potentially track user engagement.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161309283c7349---76306350738.pdf In PDF document text
- http://vesimport.ru/userfiles/file/45287336196.pdfIn PDF document text
- http://blessingsngo.in/userfiles/files/45815005691.pdfIn PDF document text
- http://sinoorchids.com/image/file/xizoxuwele.pdfIn PDF document text
- http://www.scsk12.org/policy/files/files/7779005911.pdfIn PDF document text
- https://cosmopolitanhotel.lastrada.bg/uploads/wysiwyg/files/govudurad.pdfIn PDF document text
- http://taixingchem.com/uploadfile/file/20210911010756822.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/rivugivogapomuv.pdfIn PDF document text
- https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/kipufivitulaxunonolojet.pdfIn PDF document text
- https://ritascreation.com/userfiles/file/fegagagalunidimidatu.pdfIn PDF document text
- https://binarbaidservices.com/public_html/userfiles/file/15497064495.pdfIn PDF document text
- https://motelandratecuci.ro/userfiles/file/75213935612.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-9-12/20210912220241121797.pdfIn PDF document text
- http://cmsrecuperocrediti.it/images/file/luvobekuw.pdfIn PDF document text
- http://cegled.varosom.hu/userfiles/files/donelufufag.pdfIn PDF document text
- http://abwcoliseum.com/uploads/files/8669330182.pdfIn PDF document text
- http://tranhdaquydep.vn/upload/files/tomuzesexezarabufer.pdfIn PDF document text
- https://taechoclub.com/FileData/ckfinder/files/20210904_958837A4C5B8EBAA.pdfIn PDF document text
- https://francois-daulte.com/ckfinder/userfiles/files/70502112744.pdfIn PDF document text
- https://resonanceacteurs.nl/userfiles/file/labobomasemesepo.pdfIn PDF document text
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b048f01f4e---sovomimoposomexefakodera.pdfIn PDF document text
- https://protectname.xyz/whoisprivacy/userfiles/files/74837423471.pdfIn PDF document text
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/19f91038722f3909c4d357e2737ee493/xukudefakipupos.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=short+stories+with+activities+pdfPDF 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_off0000e587.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE587 | 17972 bytes |
SHA-256: 7ffb27db1cb3a42e4b1d3aa1a2ba5b1865e0b9fd4d33f7cc0914cf025fca412c |
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font_01_sfnt_off00011448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11448 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012c5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C5F | 10792 bytes |
SHA-256: aa9343801e389f9bd8fd643acc913f2c61b54a4c496868df7c3b82291bee4446 |
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