PDF malware analysis — malicious · 6d9d2dd29411f70e

MALICIOUS

PDF

77.9 KB Created: 2021-01-30 08:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 734e9e0ec92cbc5591a2fbacb80bbfb1 SHA-1: ad69130b5453fd07ef146ea297c61ef8b56d19ce SHA-256: 6d9d2dd29411f70e58bc940f1424a1807ce94b0d38518a7706281716fd241447

244 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded links, many of which point to disposable hosting or known redirector infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the primary purpose is to direct users to potentially malicious or spam-related websites. While no scripts were explicitly extracted, the nature of the embedded links suggests an attempt to lead users to phishing or malware download sites, likely leveraging social engineering through deceptive content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.
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://cctraff.ru/wb?keyword=jurassic%20world%20map%20minecraft%20pe%20download In PDF document text
- http://prizinsta365.online/batteries_plus_campbell_springfield_mox0dy1.pdfIn PDF document text
- http://shoop-fe.ru/capture_the_flag_movie_kisse7lry.pdfIn PDF document text
- https://cdn.sqhk.co/jifigetuxu/ddgVEKl/throne_of_blood_movie_review.pdfIn PDF document text
- https://bixarina.weebly.com/uploads/1/3/1/0/131069915/bc2b64b38409f.pdfIn PDF document text
- https://cdn.sqhk.co/rorajakura/bhhge28/50897098946.pdfIn PDF document text
- https://cdn.sqhk.co/wozulifudon/VbN1R1n/super_snake_vs_cobra.pdfIn PDF document text
- https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/vutegezaxebor-zelirumunaxusa-pajemu.pdfIn PDF document text
- https://vaxurubezinijor.weebly.com/uploads/1/3/4/6/134690270/a707163482d8efe.pdfIn PDF document text
- http://basiditdcf.space/25824909470qc5s1.pdfIn PDF document text
- https://cdn.sqhk.co/mozigizax/IjcTqgh/sunrise_wake_up_light_alarm_clock.pdfIn PDF document text
- http://powerhdniy.space/policy_analysis_weimervci8x.pdfIn PDF document text
- https://cdn.sqhk.co/daladovum/c2siihb/birding_asia_journal.pdfIn PDF document text
- https://wumefabifu.weebly.com/uploads/1/3/4/8/134888429/963af.pdfIn PDF document text
- http://realnoe-obshenie.online/seponowitis3z3f3.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/jidagafinuxesu/bri_mobile._silahkan_unduh_please.pdfIn PDF document text
- https://s3.amazonaws.com/wutezigojuxi/36408097879.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_off0000daef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDAEF	5384 bytes
SHA-256: `30737d045504f4d3310ad24487bf12adf80b970a357002afe73dc3e3b830e223`
`font_01_sfnt_off0000ed36.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xED36	11480 bytes
SHA-256: `972e4098d3e3941186e12a8840618d2b75c2ef13d906296c7498d6cfe18c6719`
`font_02_sfnt_off0001148d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1148D	16192 bytes
SHA-256: `10dd024b7aca9c0af4782f0042823f5a6a937774ccb4b3ed12dd2ab58f6a5f2d`

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