PDF malware analysis — malicious · e363354b82dcd936

MALICIOUS

PDF

91.1 KB Created: 2021-03-31 12:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24

MD5: 3afeaef7ec4d4b635fc85fa87082dbf3 SHA-1: 3d649f996ea564127727063153828b0ba430cd8d SHA-256: e363354b82dcd936ba67e33868806a6b440b7c5388cfee446cd34e8e09ca6ceb

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing or trojan. It contains numerous embedded URLs, with one prominent URL pointing to a site offering 'agario free coins hack', suggesting a lure for game-related scams. The PDF structure and embedded content indicate it's designed to redirect users to potentially malicious external sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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://vilenefex.ru/wix?keyword=agario+free+coins+hack PDF link annotation
- https://cdn-cms.f-static.net/uploads/4482403/normal_6032f27ca7c6b.pdfIn PDF document text
- http://copyrightsupport-ig.com/sizuviginuzowesuwubabfb7ps.pdfIn PDF document text
- http://wotidoteked.mywebcommunity.org/sapebuje.pdfIn PDF document text
- http://avtoshtorki.shop/67398900185xlu9f.pdfIn PDF document text
- http://cloudmarket.website/vulamotititurotozojasesal7870i.pdfIn PDF document text
- http://firstdoctor.xyz/song_lyrics_i_cant_help_falling_in_love_with_you_ub40c6f4a.pdfIn PDF document text
- http://dobujebenebif.66ghz.com/five_nights_at_freddys_2_game_for_free_no_download.pdfIn PDF document text
- http://bidizujimon.getenjoyment.net/tabidepodigovo.pdfIn PDF document text
- http://vquest.website/yeet_meaning_meme39fx6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4425214/normal_5ff64ffebe932.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446399/normal_5ff520f7bae83.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4468571/normal_5fc74f439f588.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/vaxebisapesi/big_little_farmer_game_apkpure.pdfIn PDF document text
- https://s3.amazonaws.com/legobegutulo/field_trip_report_format_sample.pdfIn PDF document text
- http://sajulugebimisu.myartsonline.com/40785022012.pdfIn PDF document text
- http://bodotekufuw.rf.gd/sudeval.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1977cbba-4b50-4e79-a1b5-18609498f232/63059920442.pdfIn PDF document text
- https://s3.amazonaws.com/laginekux/how_to_unlock_cisco_8841_phone.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7ceb863f-eba4-4cbf-8bb7-0258d838e10b/gamebudubidazawevesemud.pdfIn PDF document text
- http://nigukeja.epizy.com/60550908267.pdfIn PDF document text
- http://rufegojokod.epizy.com/top_english_albums_2018_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3029f030-4882-4c1d-8b79-0e14207be4b3/old_code_of_canon_law_1917.pdfIn PDF document text
- http://sufapanizesemot.epizy.com/how_do_i_program_my_linear_garage_door_opener_to_homelink.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
`stream_004_off00012fd4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x12FD4	25788 bytes
SHA-256: `a74dd0804e1ba94199bfca378a1978b7c6a4f7c0ef3cb5246be482be63deee46`
`font_00_sfnt_off0000f15a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF15A	5164 bytes
SHA-256: `2727d49f7e597e26d72062bf07b37b6d819444803700bf7cc89205881db1e10d`
`font_01_sfnt_off000102f2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x102F2	14088 bytes
SHA-256: `65d11d30e03f9fa9a55c0c3ad4ff21edcc0785bb26c0c95c16880f1f06c85c54`

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