PDF malware analysis — malicious · 94bbab0a41fe0ee6

MALICIOUS

PDF

95.7 KB Created: 2021-04-16 20:48:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25

MD5: f3aeab5c3000bfbd095c8ee353f18f08 SHA-1: db184e25a449f5daec82ef0f225a4c1e37369438 SHA-256: 94bbab0a41fe0ee63d556cd180f8b9dda8b7993a13a832803521980b0b32fb18

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links pointing to external domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://gimoguvi.ru/strik?utm_term=predator+generator+4375+review PDF link annotation
- http://nuxokavarop.22web.org/ephesians_bible_study_guide.pdfIn PDF document text
- http://japadalifu.22web.org/is_it_illegal_to_have_a_lock_pick_set_in_california.pdfIn PDF document text
- https://cdn.sqhk.co/ketusugedi/hzU2Ojf/judezotizefugalef.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4418170/normal_605f53aadf602.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449205/normal_5fdc3ff7e3d35.pdfIn PDF document text
- https://guvepilafofifiv.weebly.com/uploads/1/3/4/6/134682232/1241350.pdfIn PDF document text
- https://pixipemojawipe.weebly.com/uploads/1/3/4/4/134459682/1348741.pdfIn PDF document text
- https://sudikefasegez.weebly.com/uploads/1/3/1/0/131070357/dubawe.pdfIn PDF document text
- https://cdn.sqhk.co/vemunaxudug/i2IwidF/amazon_titleist_tour_soft_golf_balls.pdfIn PDF document text
- http://zeputixov.22web.org/52568990139.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4453550/normal_5ff69d19784c9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4490918/normal_6049a036dd821.pdfIn PDF document text
- https://sanepawoja.weebly.com/uploads/1/3/4/5/134579143/3488145.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495694/normal_604a15d2a33a5.pdfIn PDF document text
- http://wuzotevoxed.22web.org/rimizikodeno.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://gitakatad.epizy.com/97462901579.pdfIn PDF document text
- https://6b5d12f1-3bbc-48af-9ddb-5430d2fe15e7.filesusr.com/ugd/3bf302_aabb1f060f64497b8c90b52023f4f0cd.pdf?index=trueIn PDF document text
- http://vosikixu.rf.gd/70272127257.pdfIn PDF document text
- https://ba428ff1-d53d-4eb5-bdb2-cc960067f420.filesusr.com/ugd/7041e4_a6980dae864f4fbaaca81106b2e43835.pdf?index=trueIn PDF document text
- http://saxutidiroza.rf.gd/panel_data_analysis_book.pdfIn PDF document text
- https://6184de0c-c318-42a7-882e-c5ddc63b817d.filesusr.com/ugd/1c8c1e_302fe6555d4a4d5082fcd3b5763b3a12.pdf?index=trueIn PDF document text
- https://1237a3da-0b33-4890-9ba9-974507bf2590.filesusr.com/ugd/3e0cb9_33fc474ca0974adfa37ca31887de7d08.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://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_off00015a34.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x15A34	16888 bytes
SHA-256: `6116f56a46fb3b6e42eca6b070646cf44767853ee6bb66bc03015628be05e097`
`font_00_sfnt_off00012079.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12079	5392 bytes
SHA-256: `5422c445df35ce6e27d40b6ee105e053a985c9e312c56db3862cc01c50ebc097`
`font_01_sfnt_off00013310.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13310	11464 bytes
SHA-256: `102fcc44e36b6d66f06d76316184a0d5e82a7b6f79adee4026adab7ccb4f14d4`

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