PDF malware analysis — malicious · 480eadea6a8552ca

MALICIOUS

PDF

81.2 KB Created: 2021-03-19 04:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 2091af11b557722605e7f44004e9600b SHA-1: d0c5ac850e81dd0a032a1c0968dacf8a88d8bdf8 SHA-256: 480eadea6a8552ca635cef0c313bd89510920219a26f11a3b89022df17bc6efd

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics as malicious, including ClamAV and an ML classifier, indicating it is likely a phishing or malicious content delivery vehicle. The PDF contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO manipulation tactic. The presence of embedded URLs and the overall structure strongly suggest an attempt to redirect users to potentially harmful websites, possibly for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9993

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 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.
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://jacksth.ru/strik?utm_term=tracfone+lg+journey+walmart PDF link annotation
- https://rebageronamit.weebly.com/uploads/1/3/0/7/130775484/xavewijota.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491936/normal_5fd7cd8630545.pdfIn PDF document text
- http://kiwirixup.22web.org/am_pm_time_format_in_c.pdfIn PDF document text
- https://wunobenera.weebly.com/uploads/1/3/4/8/134887230/a75fcc.pdfIn PDF document text
- http://kvyovk.xyz/konekanosinisovajef93si.pdfIn PDF document text
- http://awpmode.com/12021269663mfdby.pdfIn PDF document text
- http://zidujuwus.iblogger.org/dodge_caliber_2011_manual_book.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476429/normal_60310172770f5.pdfIn PDF document text
- https://bafikesixetiv.weebly.com/uploads/1/3/4/5/134506736/0cf82648eda.pdfIn PDF document text
- https://wilukogata.weebly.com/uploads/1/3/5/3/135388132/zekejezupovef.pdfIn PDF document text
- https://nesajejegumexe.weebly.com/uploads/1/3/0/7/130776687/2052306.pdfIn PDF document text
- https://lutolobod.weebly.com/uploads/1/3/4/1/134108863/44ee8c8ae5.pdfIn PDF document text
- https://lodikesilir.weebly.com/uploads/1/3/4/8/134868057/2527240.pdfIn PDF document text
- https://fosobezi.weebly.com/uploads/1/3/4/8/134898374/totig_gurivogukugop.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417214/normal_5ff66d8339142.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://nezebur.epizy.com/red_rising_tv_show_2020.pdfIn PDF document text
- https://s3.amazonaws.com/jolunenafobuw/resignation_letter_australia_template.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/ridemeseviniwekamipopopa.pdfIn PDF document text
- https://s3.amazonaws.com/takateg/organisation_structure_template_ppt.pdfIn PDF document text
- http://loxipov.rf.gd/how_to_program_a_radio_shack_pro_106_scanner.pdfIn PDF document text
- http://vawutalakomu.epizy.com/tere_chumme_me_full_song.pdfIn PDF document text
- https://s3.amazonaws.com/zebarufuridorur/wezuxofowi.pdfIn PDF document text
- https://s3.amazonaws.com/vabedafozo/aadhar_payment_app_for_pc.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fc33.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFC33	5244 bytes
SHA-256: `3a960778559cef1071a1870a834e3a14b90844626f54a342d15a5ca903e446fa`
`font_01_sfnt_off00010e11.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E11	12148 bytes
SHA-256: `c6bcc232b8f1780d68d732c9f9588feb9a629d45a534d8df987c3fa816867eb5`

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