PDF malware analysis — malicious · 59d260e38752a276

MALICIOUS

PDF

88.7 KB Created: 2021-03-17 21:54:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: 00724556620ba2af46c74a906c529725 SHA-1: 562839dd0fcc6c236b97e8323e5d58b5f8df9d56 SHA-256: 59d260e38752a276b988088953cf87e235273b550a857ef7c0c6ceb189fe5f1e

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with a primary one pointing to 'mezovuduw.ru', suggesting a phishing or malware distribution attempt. The document's structure and embedded links indicate it's part of a link farm designed to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
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://mezovuduw.ru/wix?keyword=project+cars+2+triple+screen+setup+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4469103/normal_600efb6a698f3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426421/normal_6018524f1628a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476783/normal_5ff75cc759b0e.pdfIn PDF document text
- https://taxufutusa.weebly.com/uploads/1/3/4/5/134514166/5823029.pdfIn PDF document text
- https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/wabirupodolera-xazukan-xokofedik-sijurodoju.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371266/normal_5ffb3441b8785.pdfIn PDF document text
- https://cdn.sqhk.co/nawafoxobok/gdNgfml/major_mayhem_2_mod_apk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375087/normal_602d91b048ed4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4448743/normal_60112782612f6.pdfIn PDF document text
- https://cdn.sqhk.co/vedanoderifu/hhgKTnm/cyber_hunter_game_download_play_store.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4401714/normal_5ff6940f939a8.pdfIn PDF document text
- https://tudexabi.weebly.com/uploads/1/3/4/7/134770635/moropezukebasetadaje.pdfIn PDF document text
- https://cdn.sqhk.co/diwelamu/Vihfidi/nanerukogijokopetutiwuno.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4489429/normal_5fe1d0725e1d8.pdfIn PDF document text
- https://cdn.sqhk.co/jotapepikota/h31gdwc/dewedonilo.pdfIn PDF document text
- https://cdn.sqhk.co/sugutomipu/b3oilyW/77393998849.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4502248/normal_603a6a175f40e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376404/normal_5fe4f2ac272bf.pdfIn PDF document text
- https://pulaberiboz.weebly.com/uploads/1/3/0/7/130775840/1628175.pdfIn PDF document text
- https://xatevixi.weebly.com/uploads/1/3/4/6/134651360/3132338.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/nitidadufetenu/24185713379.pdfIn PDF document text
- https://s3.amazonaws.com/wiwuxot/14101341938.pdfIn PDF document text
- https://s3.amazonaws.com/tipikaxe/zaweveramuvujulakeragales.pdfIn PDF document text
- https://s3.amazonaws.com/salade/42811620588.pdfIn PDF document text
- https://s3.amazonaws.com/kelukakeb/xukopovavu.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://scripts.sil.org/OFLIn 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_off0000ff71.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF71	5452 bytes
SHA-256: `f9b94ad13ebd556f88a5aeca635c08b8bdf8b918be897186fff1dca00ccd5f21`
`font_01_sfnt_off00011209.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11209	12220 bytes
SHA-256: `46a22bf702f41454b7daa9d347c4fba8db043d886fe9560ec7aa346591c385c1`
`font_02_sfnt_off00013b9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13B9B	16720 bytes
SHA-256: `ac1e9cc4be659040e7a3543d1e5aa22ed09c06de02f5c699a8257974027e4046`

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