PDF malware analysis — malicious · 7c02593037c80ee7

MALICIOUS

PDF

79.3 KB Created: 2021-04-07 22:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 0364faaf6e6c098f02d46866a0dd117e SHA-1: 24be1785b8e477aa03a8f6e39e18433ee985ac45 SHA-256: 7c02593037c80ee71cdd76efd6326701cb11daf8ad45e17a016a25eada2f82d3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ML classifiers and ClamAV. It contains numerous embedded URLs, many of which point to disposable hosting or suspicious domains, suggesting a phishing or scam attempt. The document body, though partially corrupted, includes a search query related to a Kenmore dryer, likely a lure to disguise the malicious intent. The presence of external URIs and a link farm heuristic further supports the conclusion that this document is designed to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 5

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 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://xajibur.ru/strik?utm_term=what+does+f70+mean+on+a+kenmore+dryer PDF link annotation
- http://hotgirls.host/tazifarerjbzn.pdfIn PDF document text
- https://cdn.sqhk.co/murafabu/cCKPRtT/gosijige.pdfIn PDF document text
- https://cdn.sqhk.co/deloreba/rif4xgg/guilty_crown_episode_12.pdfIn PDF document text
- http://m-laskin.ru/fubekusabudojimebitmz2qz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493589/normal_6036a24f33905.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473926/normal_60066b7677146.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4454965/normal_6031518a2274b.pdfIn PDF document text
- http://filmera.ru/aqa_a_level_biology_year_2_bookk31hh.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4479942/normal_60618a58265c1.pdfIn PDF document text
- http://instapriz.site/91877534162uhlq4.pdfIn PDF document text
- https://cdn.sqhk.co/tavedikovo/cujhYjf/missing_you_lyrics_the_vamps.pdfIn PDF document text
- http://batut.space/windows_7_cracked_torrent_downloadkom0a.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4494429/normal_5ff152e8a1124.pdfIn PDF document text
- https://cdn.sqhk.co/bivosemubo/mMunELb/job_interview_preparation_worksheet.pdfIn PDF document text
- http://scotiaenlineape-personas.com/dark_souls_3_aldrich_faithful_covenant_locationci18s.pdfIn PDF document text
- http://3gusevshop.website/intrepid_new_york_city_tourist_attraction_crosswordioxrn.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4386081/normal_6009a700af683.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421208/normal_6012c8d47ddcd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/53f1b179-7b70-4552-a89e-f961e5306934/tuligisu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7e167294-4130-4772-b976-c07b16ca9a8b/25851489357.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7d22ea15-cf89-4366-ba61-d611828c9eaa/twilight_breaking_dawn_book_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e9004446-d425-4b40-9f75-f91ac0e87e16/51965663752.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ecb7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECB7	5256 bytes
SHA-256: `3a3e62bd655b744a4ef8cf23dd1dfa1d8492ad4b655e041e46b38ac5c1f0b15f`
`font_01_sfnt_off0000fe7c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE7C	10272 bytes
SHA-256: `b27f26e2f11e5236b5ef0d23c99f7085ed0d8404fdf7e819743952dd5a9484f9`
`font_02_sfnt_off000121aa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x121AA	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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