PDF malware analysis — malicious · e6e082edcd3a98ef

MALICIOUS

PDF

83.3 KB Created: 2021-09-15 20:13:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26

MD5: 2259734ebe3b2d8cacf75d58482e5348 SHA-1: 7c159a14e62daf2abb74eba6be41f25e647ed699 SHA-256: e6e082edcd3a98efec09c6865e04358e3b78adb29bbf63cdaf674b713da344f3

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The presence of numerous external URIs, many pointing to disposable hosting, strongly suggests a phishing or malware distribution campaign. The ML classifier and ClamAV detection further confirm the malicious nature of this file.

Machine Learning

Nyx PDF Classifier malicious score 0.9974

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
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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://oniceh.ru/uplcv?utm_term=critically+analyse+the+character+of+the+duke+in+the+poem+my+last+duchess PDF link annotation
- https://uzmanwebci.com/calisma2/files/uploads/68072311489.pdfIn PDF document text
- http://rocb-ap.org/file_media/file_image/file/32385814551.pdfIn PDF document text
- http://ityab.com/cache/fck_files/file/foxamogoxepufinakadukana.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/e9255f1637462cf725a0302c5c2e0e70/nidesilufawimozisegi.pdfIn PDF document text
- https://natyabio.com/uploadfiles/pawugakuzalefe.pdfIn PDF document text
- https://opsclown.it/ckfinder/userfiles/files/93024043466.pdfIn PDF document text
- http://sochi-riba.ru/ckfinder/userfiles/files/wipatitagegikivuxag.pdfIn PDF document text
- http://hanasushi6.com/uploads/files/tekinofufugop.pdfIn PDF document text
- http://nj-rshb.com/v15/Upload/file/202191613245412.pdfIn PDF document text
- https://dolphinsolutions.net/ckfinder/userfiles/files/93021601465.pdfIn PDF document text
- http://telegid.tv/userfiles/file/98673604100.pdfIn PDF document text
- https://basalyemek.com/ckfinder/userfiles/files/jikosamune.pdfIn PDF document text
- https://jaurrieta.net/USERFILES_JAURRIETA/files/tazanomejofonoli.pdfIn PDF document text
- http://demirlermetal.com/resimler/files/73220905244.pdfIn PDF document text
- http://avesta-hmora.boj.se/uploads/userfiles/files/58718978145.pdfIn PDF document text
- http://pribatu.lamilagrosaimport.com/images/files/xavebafewenumatejo.pdfIn PDF document text
- http://pwr-tech.ru/userfiles/file/86821373420.pdfIn PDF document text
- http://xn----7sbezcba9a5aggb3j.xn--p1ai/ckfinder/userfiles/files/zakoburubefabib.pdfIn PDF document text
- https://pmrmhss.com/userfiles/file/guwekowofetidetodib.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/17097208883.pdfIn PDF document text
- https://catbasailing.com/upload/fck/file/depenaxi.pdfIn PDF document text
- http://kompassztuki.pl/Image/files/zupikesojanosejuse.pdfIn PDF document text
- http://myucpb.com/userfiles/file/gawukuwoxumo.pdfIn PDF document text
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/bf7iikk443niq9nin32v4mkl90/romoxewugib.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_off0000e0b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE0B7	17092 bytes
SHA-256: `68e4ce6211b7243e41e6343b70fd84e719bcde6cd83274370e5544a2aff938cc`
`font_01_sfnt_off00010c80.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C80	11220 bytes
SHA-256: `9a9cf84d0a3878a393c0add4ffe7d693e9536a7b79a8a5ed8bd463968f62920e`
`font_02_sfnt_off000126a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x126A9	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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