PDF malware analysis — malicious · 7d69b284cb3efd58

MALICIOUS

PDF

75.2 KB Created: 2021-07-02 08:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14

MD5: 05c386791dd0de003c842226f5c7a5a6 SHA-1: 5447e342f63f212de77351c4d97163a0cd2a8f56 SHA-256: 7d69b284cb3efd58c9a4bbd0d8a55d58b32539acf365ab1356618bbe082787e6

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to numerous external websites, many hosted on compromised or disposable domains. The presence of external URIs and link farms suggests a phishing or malware distribution campaign, likely initiated via spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9953

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://infrive.ru/uplcv?utm_term=the+sound+of+music+full+movie+online+free+123movies PDF link annotation
- http://fontanarosaserigrafia.it/userfiles/file/18764567694.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/b194175b0685cd83a306039de729a64e/10219864468.pdfIn PDF document text
- http://sl-light.ru/design/img/upload/file/nesejij.pdfIn PDF document text
- https://artbynela.com/uploads/file/96237120652.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/zefep.pdfIn PDF document text
- http://inewbus.com/wp-content/plugins/super-forms/uploads/php/files/38qvr1ndslnc9f3du5lljq8a97/40620850126.pdfIn PDF document text
- http://phukhoabacninh.com/images/files/2856794367.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/zowanojikidorakuvuvixo.pdfIn PDF document text
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085f2ceb7b73---40891805292.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/71094253556.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098d6359f3f2---45565750651.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609896b5d5617---dakowonugalejizufuzavej.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/66b419d998f0d32855cdfeb6acb9ddd3/5586928723.pdfIn PDF document text
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607effdbc12e2---33407464319.pdfIn PDF document text
- https://sgpropertylawyers.com/wp-content/plugins/super-forms/uploads/php/files/8726c7a74ed6080d9663e97726e4fc2b/34432647804.pdfIn PDF document text
- http://aep-tc.com/cache/fck_files/file/lemapenazinumelefu.pdfIn PDF document text
- http://clinicoral.com/img/userfiles/files/17287947703.pdfIn PDF document text
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/gqj5hmcfcu4mjncm86c48k6nr7/nomunanugipewotemufutazi.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/24469dde813068b446c58dbace79691b/1154975117.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/qih09c3n48rvv51b81aiu738kf/15888796472.pdfIn PDF document text
- http://fundacionecla.org/resources/original/file/83396007989.pdfIn PDF document text
- http://praxis-greve-polley.de/web/editor/files/99157020223.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16077385e4f4c2---vovuzetalojowejima.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_off0000c206.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC206	10956 bytes
SHA-256: `e611fa1e525e7b385c7e9a3c6192af31744d888d9c3faec1cf0a159fd4dd580f`
`font_01_sfnt_off0000db57.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB57	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off0000f369.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF369	16780 bytes
SHA-256: `055a5a8fd4b5029595c9c11b8de389ae7f1a310e93267af8a92aa9c32ed2ab70`

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