PDF malware analysis — malicious · 94b700a5e4620fcc

MALICIOUS

PDF

78.5 KB Created: 2021-09-16 04:09:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16

MD5: 78edb832f70e0ef94667ac6fcb503d7a SHA-1: 830bcd45f6d2e18c2077c3f0e922ea1eeb5e5c19 SHA-256: 94b700a5e4620fcc055b0ed915d0aec12ad141c974e96130fcc7ed92c0b3dfa3

196 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristics indicate it functions as a link farm, directing users to various compromised websites and potentially malicious PDF downloads. The presence of a 'Password-protected archive handoff' heuristic suggests the document's primary purpose is to trick the user into downloading an archive, providing a password to decrypt it, which is a common tactic to evade security controls.

Machine Learning

Nyx PDF Classifier malicious score 0.9975

Heuristics 7

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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://drafthe.ru/uplcv?utm_term=garbage+bin+comics+pdf+free+download PDF link annotation
- https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/ee52b60eab7a6f3d338c613c3d1c01a1/75747490849.pdfIn PDF document text
- http://ciaomamma.hu/editor_up/43073205083.pdfIn PDF document text
- http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ziropuzomomo.pdfIn PDF document text
- http://vipforiraq.com/userfiles/files/kivesiganulaleluku.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/12d3fca300dbe51f6f87701f5a6e4b76/26330108379.pdfIn PDF document text
- http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xorutesimi.pdfIn PDF document text
- http://rezidencianestor.sk/app/webroot/files/ckeditor/files/bazotanosikiv.pdfIn PDF document text
- https://marathonblainville.com/userfiles/files/gononip.pdfIn PDF document text
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/7818052114.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cee547b54c---xozuvewuganibiva.pdfIn PDF document text
- http://www.pzkexie.com/up_files/file/pemigokiwinenosu.pdfIn PDF document text
- http://hijoin.hu/editor_up/83498481212.pdfIn PDF document text
- https://latrinquette.com/upload/editor/file/31104847773.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/pc9tbdrtvr7e82opn5h4r6vaae/10617861069.pdfIn PDF document text
- https://bankubezpieczen.pl/userfiles/file/togawupujuwajul.pdfIn PDF document text
- https://retrofitoman.com/ckfinder/userfiles/files/nitoxolesemepiw.pdfIn PDF document text
- http://sghr.ca/upload/ckfinder/files/22047980715.pdfIn PDF document text
- http://sziszolg.hu/editor_up/29629335878.pdfIn PDF document text
- http://danchrisjewelry.com/userfiles/file/82527283556.pdfIn PDF document text
- http://hzxf.com/images/upload/File/40049601692.pdfIn PDF document text
- http://midospa.com/upload/files/34760679091.pdfIn PDF document text
- http://ltmetal.com/userfiles/files/90717397710.pdfIn PDF document text
- http://mayinluatudong.com/uploads/userfiles/file/87153606942.pdfIn PDF document text
- http://modamoda.nl/uploads/pic_lib/file/liwawuk.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_off0000cb66.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB66	17620 bytes
SHA-256: `06b41e35437e9fc76f71a516389d912a5a244028c773a8ac2e29f69ee84aa830`
`font_01_sfnt_off0000f8bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8BB	11128 bytes
SHA-256: `3d47ff816495b12b851a61d28bd7aaa2f5d4dc3646070928a0a35e536b37f052`
`font_02_sfnt_off00011257.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11257	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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