PDF malware analysis — malicious · 980144b76a776624

MALICIOUS

PDF

80.2 KB Created: 2021-07-01 13:25:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14

MD5: 576f53945a20683ff35e416bfb96376a SHA-1: e2b4d3e6d14f52e1c4544a1429e9932831e5a81c SHA-256: 980144b76a7766241b76525e2fb487b237e917f86843a696a7c1bf3d8df0b06a

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating it is likely a phishing or malware distribution lure. The heuristics reveal it functions as a link farm, directing users to numerous compromised WordPress sites and disposable hosting domains. These links likely serve as a distribution mechanism for further malicious content or phishing pages.

Machine Learning

Nyx PDF Classifier malicious score 0.9949

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://catamma.ru/uplcv?utm_term=jackson+factory+outlets PDF link annotation
- http://abwpetersburg.com/uploads/files/bajapaxez.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080f8992d77b---bebigadakuloviviwetisuli.pdfIn PDF document text
- https://rhagro.com.mx/wp-content/plugins/super-forms/uploads/php/files/9320baf4771cebe718132c14bafe5796/vilugafubuf.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a818fb2aa48---zijorogivolodiwujuzupire.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094049788baa---77005589289.pdfIn PDF document text
- https://sasalidayanisma.org/uploads/file/midepen.pdfIn PDF document text
- https://fnb-concepts.com/images/uploads/files/zivudaput.pdfIn PDF document text
- https://beysukonaklari.com/ckfinder/userfiles/files/tamukawigodawozedo.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098fc47e6e95---punanoloxizuwofit.pdfIn PDF document text
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/310ea942b8975378f34770bfb482e1e6/9660188519.pdfIn PDF document text
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/fe785e92912b1b4f074b190b648694ed/vajub.pdfIn PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/c6a3b2a206ae8268f01e06968af5bdd9/76049361641.pdfIn PDF document text
- http://safetypath.net/cms_images/22836729185.pdfIn PDF document text
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/sgrde169b42aar50tdod6uud36/86651706583.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a2a53d21fb---jofaligaxukegazajan.pdfIn PDF document text
- https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/5e6a36ea6c3e8f21417fdec3388e7870/33583855980.pdfIn PDF document text
- http://travelport.pl/userfiles//file/bogez.pdfIn PDF document text
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb33718f26---39688065641.pdfIn PDF document text
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607273c1e7655---tilizuzojisomotar.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7342152324---taduvudiluxoxilesuki.pdfIn PDF document text
- https://dptech.vn/uploads/files/ludet.pdfIn PDF document text
- http://for-rent-antwerp.com/wp-content/plugins/formcraft/file-upload/server/content/files/160725e3fecc30---89934405986.pdfIn PDF document text
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/9c26211fdf3d0472e94a8115b69839f7/2916070460.pdfIn PDF document text
- http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/06f7506b8acb2c9e143db0fbc89e2c4f/rimut.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160813eec0d36e---gesasupub.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_off0000d578.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD578	10536 bytes
SHA-256: `f074b747109386fb30424a0669658a61ffba93a6d4fead903462755784bb9acd`
`font_01_sfnt_off0000edc8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDC8	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000105da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x105DA	17612 bytes
SHA-256: `f44d691e2a745c53562da83299cf72e2bf6188cdf318ceb90a55b198fdc5433b`

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