PDF malware analysis — malicious · e0efaf7e3ac410bb

MALICIOUS

PDF

90.1 KB Created: 2021-08-16 01:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-16

MD5: 682dea095dbce29a69a1fa003aaad9aa SHA-1: 946a8554022a5ad86dbc6f1a7ba09b49d8059cc8 SHA-256: e0efaf7e3ac410bb45076a0888ed44be9c0a8fc05cc1ca3a9523c242b96a52e9

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites, likely serving as a distribution point for further malicious content. The presence of multiple distinct hosts and the use of UTM parameters suggest an effort to obscure the ultimate destination and track user engagement.

Machine Learning

Nyx PDF Classifier malicious score 0.9954

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 https://chcial.ru/uplcv?utm_term=fit+body+boot+camp+schedule+byron+center PDF link annotation
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/79j19t6ips6p9ov6u366ptnnts/jonavazuwafetama.pdfIn PDF document text
- https://palcev.ru/userfiles/file/dibepepasanexatanipato.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4018d9d5a---wilam.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c871c4440---rajifajebenigazisolox.pdfIn PDF document text
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/e35406ed3652e0898c7dfd53b0ecf380/27938000377.pdfIn PDF document text
- https://lapalettedesarts.fr/gestion/file/mewuramubix.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e7961d93f87---lupazotozajenanelewogezel.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/zapafexufovunazenaku.pdfIn PDF document text
- http://bronia.org/userfiles/file/51304668772.pdfIn PDF document text
- https://cakkue.com/contents//files/41307042717.pdfIn PDF document text
- http://townofwinslowin.com/flash/townofwinslowin.com/file/58124874960.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609f518104242---sarezijib.pdfIn PDF document text
- https://wipaphun.com/UserFiles/File/jiveb.pdfIn PDF document text
- http://hodori247.com/uploads/files/bilebajebono.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d3fcc9b00---10857499254.pdfIn PDF document text
- http://agro-pasz.pl/ckfinder/userfiles/files/59487525698.pdfIn PDF document text
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094a6d07514a---98642231920.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160872a6014232---61105817515.pdfIn PDF document text
- http://a2itsolutions.com/chop/multimedia/userfiles/file/11551393192.pdfIn PDF document text
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/1a9421ad72154580692b7f1d04ebde08/53484134836.pdfIn PDF document text
- https://www.m2asolutions.com/wp-content/plugins/super-forms/uploads/php/files/effd94ab68b92568aadf4807c11ee48b/pizokulomigurasagaradejel.pdfIn PDF document text
- http://burmeseburmilla-allevamento.com/userfiles/files/sufemaxolojefetolid.pdfIn PDF document text
- https://wsbtitan.com/images/file/wevubiliruw.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/02a4f77c2abda8e4175fdba0fc444a95/nozuzexubezopiforomesa.pdfIn PDF document text
- http://perksys.com/userfiles/file/43704589992.pdfIn PDF document text
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f77619494e---7802406866.pdfIn PDF document text
- 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_off0000facc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFACC	16992 bytes
SHA-256: `cb00b9963c8dba78ef82036559813a346db305e412e6e0de7514daf65c795eb9`
`font_01_sfnt_off000126e1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126E1	11112 bytes
SHA-256: `56aee6d9057e57c3cde01b0ac5477dd2669e6f69cc8cb615e79e98e01add9231`
`font_02_sfnt_off00014066.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14066	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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