PDF malware analysis — malicious · d26230f4879b6c6b

MALICIOUS

PDF

90.8 KB Created: 2021-03-15 20:33:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30

MD5: 189ea50f54dccd703e3a3ecc4a22f5af SHA-1: ecf46d524da23d16dae05621d59b1155b6fd940e SHA-256: d26230f4879b6c6b40afd68ddd31068b3e8a2ce69ec59c3952d00ee8a56aedb4

166 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to disposable domains, many of which are likely part of a link farm designed to host malicious content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely provides instructions to decrypt a password-protected archive, a common tactic to evade gateway scanning. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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://xezojetit.ru/wix?keyword=mkv+video+player+apk+for+pc PDF link annotation
- http://salearea.pro/27721231231n7sqi.pdfIn PDF document text
- http://heleogose.online/zakipisaxe2m4if.pdfIn PDF document text
- http://mazafaka69pussy.online/how_to_put_jabra_in_pairing_modektx9p.pdfIn PDF document text
- http://theplafond.xyz/mapeteg27f3.pdfIn PDF document text
- https://nuwofukejixi.weebly.com/uploads/1/3/1/4/131437867/zokebux_zapugidub.pdfIn PDF document text
- https://xenapake.weebly.com/uploads/1/3/4/3/134353424/rojajeguxoleruf_voritadidesun_tofijuxesodikos_sijezo.pdfIn PDF document text
- https://wavupuzubeje.weebly.com/uploads/1/3/4/2/134235525/vurid_tamozez_rezezegunujiv_vidimewafowi.pdfIn PDF document text
- http://instgramcopyrightdispute.com/xutidoxofimlqxe.pdfIn PDF document text
- http://vknacruckalaikov123.xyz/blue_dye_source_crossword_answerbs8tj.pdfIn PDF document text
- https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/mijuvowo-mitukamirif-lajepax-dezezadevobakub.pdfIn PDF document text
- https://razejegunejedad.weebly.com/uploads/1/3/1/6/131636834/1098580.pdfIn PDF document text
- http://eurozone.pro/47863124802h2znz.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://reniwen.rf.gd/gipamafapimuw.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ef6e8e30-9e58-4f3e-b57f-713dc0da44da/23474065780.pdfIn PDF document text
- http://labapok.rf.gd/developmental_psychology_study_guide_quizlet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb95ab66-c162-40ca-b934-d4ef21d66819/samsung_q7f_55_2017.pdfIn PDF document text
- https://a72a44ae-2aae-4d6a-a6c4-235301d0a62e.filesusr.com/ugd/57436b_ddd724db37b14ba7b20cf7d115523676.pdf?index=trueIn PDF document text
- http://tuzotulerijenej.rf.gd/kiramalijotejowedot.pdfIn PDF document text
- https://a1d1c4ac-cf1d-4c58-861c-45d1188f4b60.filesusr.com/ugd/052f3a_36665d295dde47f289bbbcd65d3e983c.pdf?index=trueIn PDF document text
- http://fanedabomo.epizy.com/navy_nec_codes_list.pdfIn PDF document text
- https://a32e93c2-1aa3-4149-af29-aa5d163ab988.filesusr.com/ugd/40336e_ec94e3e6502b4574ab71d6400abeb8ee.pdf?index=trueIn 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_off00011714.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11714	4804 bytes
SHA-256: `ea8a5255c69798ef344ef907a69ab50667e1147bb4c812b6c0bd2a955a83a437`
`font_01_sfnt_off00012791.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12791	11420 bytes
SHA-256: `d891cd0114d12b441b6d90b671515b1bd0818b5ca246d808d5f2535d290e4515`
`font_02_sfnt_off00014e6d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14E6D	4324 bytes
SHA-256: `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`

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