PDF malware analysis — malicious · b79c186ce556d359

MALICIOUS

PDF

79.4 KB Created: 2021-03-18 00:57:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17

MD5: ead51492e7afb959f8c6567c49e79060 SHA-1: 084ac51ab7e54def02811b524024a9110aba2162 SHA-256: b79c186ce556d359eacd50e651da39d458a3ccd8a5cfaf3c10bcf37aef7dee55

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with one specifically leading to a URL that mimics a search result for financial queries, suggesting a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution via embedded links.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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://pelibifir.ru/strik?utm_term=how+do+i+cash+out+my+trs PDF link annotation
- https://cdn.sqhk.co/jutafegobexe/KIfHieo/20997697072.pdfIn PDF document text
- http://2022god.com/29950275280gm2z9.pdfIn PDF document text
- https://cdn.sqhk.co/pixazizaze/exnbEQ3/xotifoguko.pdfIn PDF document text
- http://gifozuxozud.22web.org/54815799559.pdfIn PDF document text
- https://zojezuma.weebly.com/uploads/1/3/1/3/131382028/3111183.pdfIn PDF document text
- https://barobinamad.weebly.com/uploads/1/3/4/7/134756413/fakidawan-xewarafusa-mosaxasasivotof.pdfIn PDF document text
- https://cdn.sqhk.co/puwukuwos/cZP3ign/manenarawevizagow.pdfIn PDF document text
- http://sokfresh.fun/dongri_to_dubai_marathi_freezh00a.pdfIn PDF document text
- http://milanomodaitaly.site/sea_ray_ownershipnkbvn.pdfIn PDF document text
- http://sodalabs.pro/how_to_put_a_plastic_collar_on_a_dogzof3z.pdfIn PDF document text
- http://expressday.online/33323072114r2m0b.pdfIn PDF document text
- https://davixiwawelugez.weebly.com/uploads/1/3/4/1/134133028/103cab0.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
- http://luwekexopevom.rf.gd/boohoo_stock_performance.pdfIn PDF document text
- https://s3.amazonaws.com/fizufapu/42605851403.pdfIn PDF document text
- http://rusowemiwa.rf.gd/crystal_report_viewer_visual_studio_2013.pdfIn PDF document text
- https://dca540c6-954d-4243-9f09-0921753db957.filesusr.com/ugd/974a4e_6cdef04b918e4f5cbadb93f5ba3f6f53.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/vuxalirudidel/add_png_image.pdfIn PDF document text
- https://3c86e5df-9a55-47dd-9d5b-c207b25ec6cd.filesusr.com/ugd/72bf36_f0336c20a1724d53be976bd60592c22f.pdf?index=trueIn PDF document text
- https://9e730ba1-499c-413e-9a09-8a81f8121270.filesusr.com/ugd/0a0016_f97125ddcb324b8e9b671b7cd098bd3f.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lopadivupudexa/25285028660.pdfIn PDF document text
- http://bapexuzajo.epizy.com/filixuwetirebom.pdfIn PDF document text
- https://52a1af19-6946-4c37-aba6-ab00a30e4874.filesusr.com/ugd/5dc3ca_0561dd86ca204be896396955d73a5e02.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xeropizuwe/zewez.pdfIn PDF document text
- https://cc46d2ba-e7cf-42f8-aa62-b015a0c17ef0.filesusr.com/ugd/d180c3_84e468da62b24994a84a1eb058f72ed0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/besafefaf/lendingtree_credit_report_login.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_off0000ebe2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBE2	4960 bytes
SHA-256: `3a04d0e19922127e7f1532048ffd7e69d45141215bdf77519dfb53e54018c546`
`font_01_sfnt_off0000fccd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFCCD	10896 bytes
SHA-256: `7b71e17355fcc01cc39fd70262fa514fa6cd31bbd89d31da2e5e5d0c7533b5be`
`font_02_sfnt_off00012215.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12215	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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