PDF malware analysis — malicious · c7f14a66e041689b

MALICIOUS

PDF

45.6 KB Created: 2021-09-06 09:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: 641c0c3bd389f311a8043bcfe3ee9a0d SHA-1: a81dcc791beb14bec44491065397ac54fa8ebe81 SHA-256: c7f14a66e041689be13a4b946c7423e8d80b2d449103d9c6e91763a8b10579b2

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF employs an image-only lure, typical of phishing, with a clickable link directing users to a malicious PDF hosted on a compromised WordPress site. The presence of multiple links to disposable domains and compromised CMS uploads indicates a campaign focused on distributing further malicious content.

Machine Learning

Nyx PDF Classifier suspicious score 0.2956

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
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK

PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 45 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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
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://laborke.ru/uplcv?utm_term=desarrollo+comunitario+definicion+pdf
- http://douzonebnf.com/upload/file///wixewi.pdf
- http://lucidareemantenerepavimentifaidate.it/userfiles/files/63333669712.pdf
- http://scandirent-new.ru/uploads/assets/file/wofis.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ee9d5e43d---kabitexugaboniwamajuje.pdf
- https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/d6a2bf9b993ab9e9976458eb9276322c/rodesevabogubukegasiso.pdf
- http://freeorden.com/media/file/79306175090.pdf
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a1dd915775d---35980797334.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/d4e3882e12c93170e499192e53f2744e/lapakoli.pdf

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