PDF malware analysis — malicious · ca2e8f58305c9c60

MALICIOUS

PDF

77.2 KB Created: 2021-03-08 06:33:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 3a8678c944ad23256ff6b2fa2deae169 SHA-1: 95036506c0855eaea37cf3bd3f60f5af2919a241 SHA-256: ca2e8f58305c9c60e34f33a42b9aad1eef86d81b5113f6e57e012cafd31b66e0

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a seed-phrase/secret-recovery lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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
Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE

Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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://ponafet.ru/strik?utm_term=ethical+hacking+training+institute+in+mumbai PDF link annotation
- http://paksorond.xyz/dcs-930l_driver_cd7zh6u.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387919/normal_603756d67078b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424029/normal_6013241e2d66f.pdfIn PDF document text
- https://wozepunelom.weebly.com/uploads/1/3/5/9/135993859/28ee7c.pdfIn PDF document text
- https://titerafutar.weebly.com/uploads/1/3/0/7/130775646/265405.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4498404/normal_5fc9da2887738.pdfIn PDF document text
- https://vujufosidomo.weebly.com/uploads/1/3/1/4/131482916/vigovoguvitoxefa.pdfIn PDF document text
- https://miwebuzoz.weebly.com/uploads/1/3/4/0/134095964/lorexugu.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4492892/normal_5ff602630a0c1.pdfIn PDF document text
- https://neveloso.weebly.com/uploads/1/3/1/4/131408616/kekenetavetabez.pdfIn PDF document text
- http://civiliscmq.online/old_mans_war_epub_vk167wz.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4467325/normal_5fefb42320d0d.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/dewazewokib/ccdp_quick_reference_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/32c06b1d-6458-414f-aa4c-ea294d7cdc8c/mr_heater_big_maxx_thermostat_wiring.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/335d26ce-601c-4f5c-b2e8-ba62b4569c7b/convert_to_jpg_with_ms_paint.pdfIn PDF document text
- http://nomulumipal.rf.gd/chromecast_for_windows_10_desktop.pdfIn PDF document text
- http://goxosabewap.rf.gd/14398452332.pdfIn PDF document text
- https://s3.amazonaws.com/lolijexejomak/zixuwuvemugowovo.pdfIn PDF document text
- http://vevurikadi.epizy.com/onn_dvd_player_universal_remote_codes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5997895e-6f43-4f45-80f7-6b8d08d249cc/navogilovujuji.pdfIn PDF document text
- http://dinajamabas.epizy.com/map_of_kauai_hawaii_beaches.pdfIn PDF document text
- https://s3.amazonaws.com/minegikukovel/bandook_ki_photo_ing.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6b75c79d-b0d1-4ddf-a411-a9c9249c7531/nabomuxafija.pdfIn PDF document text
- https://s3.amazonaws.com/dotivaf/dujuxewojelenowax.pdfIn PDF document text
- https://s3.amazonaws.com/wifiduxezo/tecnologia_de_informao_na_logistica.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_off0000ef19.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF19	5376 bytes
SHA-256: `461018725239bfe9c3bee5338445a5c7782d92eb15a606323459aca9bbe679c0`
`font_01_sfnt_off0001013c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1013C	11368 bytes
SHA-256: `2d20e8a60c712774d61cdd199f4a630d31153384d2cde0d2c30b7243b6d66d92`

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