PDF malware analysis — malicious · 6780bb9284afb26f

MALICIOUS

PDF

80.0 KB Created: 2021-03-16 23:10:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20

MD5: 487db973a737403f2ec056e54af81d6f SHA-1: 691386025474eccd12d0eb9fefc1dc5f8bb2a1e8 SHA-256: 6780bb9284afb26f775bb960808fdfdaf3388c1efd2344ec529d7a62a3d3925a

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though partially obfuscated, suggests a search result lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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://kuzutuzo.ru/strik?utm_term=que+es+la+silaba+atona+y+10+ejemplos PDF link annotation
- https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/vabuga.pdfIn PDF document text
- http://bimovixexena.scienceontheweb.net/60641916253.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459036/normal_5ff05c8ab4bf8.pdfIn PDF document text
- http://fusobilel.iblogger.org/girl_guides_new_uniform_2019.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417029/normal_602e65764f3b8.pdfIn PDF document text
- http://gexomafe.mypressonline.com/tobizutoxomubeze.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417530/normal_605065d253b14.pdfIn PDF document text
- http://novinove.iblogger.org/manejo_edema_pulmonar_agudo.pdfIn PDF document text
- http://todurodadol.iblogger.org/jane_austen_movies_on_netflix_2021.pdfIn PDF document text
- https://renevemepo.weebly.com/uploads/1/3/1/6/131606397/7074283.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379363/normal_60511a5404d74.pdfIn PDF document text
- https://wumefabifu.weebly.com/uploads/1/3/4/8/134888429/murulu-wosurenigo-lelape-kafewew.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4458148/normal_601541704dadf.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4503787/normal_6048088bd3fe1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4456685/normal_601a198a45864.pdfIn PDF document text
- https://zaxiradijewebox.weebly.com/uploads/1/3/4/8/134889682/wasijosid.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409095/normal_600929f54157d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378852/normal_5fe6a5ffb979e.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://s3.amazonaws.com/baxekojojexusol/create_login_page_for_wordpress_website.pdfIn PDF document text
- https://s3.amazonaws.com/lekezaru/tascam_dp-24sd_24-track.pdfIn PDF document text
- http://tuzagexesowojoj.epizy.com/letter_of_credit_draft_template.pdfIn PDF document text
- http://niwuzowebod.epizy.com/52644808482.pdfIn PDF document text
- http://gajutar.onlinewebshop.net/20742461962.pdfIn PDF document text
- https://s3.amazonaws.com/daraniwekamidir/14848159414.pdfIn PDF document text
- https://s3.amazonaws.com/mokamoba/55325872129.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_off0000e890.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE890	5324 bytes
SHA-256: `6bf5f79f85641923af4270b97dca24431a5bb470bde2d1aee7a8f81bc7546aa1`
`font_01_sfnt_off0000faa0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAA0	12604 bytes
SHA-256: `dc4c6905d4ff0b7c96a5381930161c1afe13863e933e01398098ed41fd951db3`
`font_02_sfnt_off0001225c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1225C	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

Open this report in the interactive analyzer, or submit your own file for analysis.