PDF malware analysis — malicious · 3b8aa15f0216fb83

MALICIOUS

PDF

72.3 KB Created: 2021-02-28 06:31:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 236c4dc7d3e0460f1cd5f46bf8ff29a4 SHA-1: 58ba2602988d8a24a5c0cc42d069efdc9e57a00a SHA-256: 3b8aa15f0216fb83f02fe90ca8891bfe213b63d41ee3ad23cb8f100109e7856b

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that leads to a phishing site disguised as a sales listing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into visiting the URL for credential harvesting or malware download. No scripts were extracted, but the presence of external URIs and the overall detection suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://botokaw.ru/123?utm_term=26+inch+dub+floater+rims+for+sale
- https://cdn.sqhk.co/tosilura/bv54zHN/tuniwobebaxesakita.pdf
- https://cdn-cms.f-static.net/uploads/4454281/normal_600f1ac8d7f12.pdf
- https://cdn.sqhk.co/piwizogir/jgdichh/block_craft_3d_apk_mod_gems.pdf
- http://lnstagramverifycentre.com/what_grade_level_is_esperanza_risingxmsfm.pdf
- http://prequester.online/ninja_foodi_air_fryer_flip_upstpm0.pdf
- https://cdn.sqhk.co/fukonovum/gITlhgP/tattoo_coloring_book_download.pdf
- https://cdn-cms.f-static.net/uploads/4412568/normal_6014db61c3999.pdf
- https://cdn-cms.f-static.net/uploads/4460725/normal_5fd7f44fc2996.pdf
- https://cdn.sqhk.co/gewanunu/Qy5hgic/nascar_super_speedways.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/sevoga/1497510018.pdf
- https://s3.amazonaws.com/varolexexus/chocobo_color_guide_ffxiv.pdf
- https://s3.amazonaws.com/neporezofov/zezig.pdf
- https://s3.amazonaws.com/rimejiguvif/battery_tender_jr_user_manual.pdf
- https://s3.amazonaws.com/donukadizolin/itemized_deductions_2019_worksheet.pdf
- https://s3.amazonaws.com/lorugipopuxe/riwonelalabogu.pdf
- https://s3.amazonaws.com/zopenave/jewajon.pdf
- https://s3.amazonaws.com/zufojadibi/79747396442.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d13a.bin` `415d4f40386da814bb1111f42c692f1e37223939a5dc8ed304be698fba1eeacd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD13A	5476 bytes
`font_01_sfnt_off0000e38c.bin` `15cb15b7084cb92d2f6fbf6032f1ac1b93ca1b77fef631eced997a07aae37043`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE38C	10112 bytes
`font_02_sfnt_off00010622.bin` `7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10622	4324 bytes

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