PDF malware analysis — malicious · 36a32b18061a78d9

MALICIOUS

PDF

74.2 KB Created: 2021-02-27 08:17:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 768e1a0c67ab86d880068ce23a63c58c SHA-1: a0a90aaee3ef8dbfe30ab371ea1275e1ff017f1e SHA-256: 36a32b18061a78d96ef95502fc7e3acd9ada9e7b8a1ea27ad03a97d399a825d8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a malicious domain, likely intended to deliver a payload or phish for credentials. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to weight training.

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://kuzutuzo.ru/strik?utm_term=what+is+pyramid+system+weight+training PDF link annotation
- https://cdn.sqhk.co/zimajigon/jelmhha/91832884866.pdfIn PDF document text
- https://cdn.sqhk.co/wobuwaseja/hf4jejc/xcom_enemy_within_manual.pdfIn PDF document text
- http://xumupizaxuto.scienceontheweb.net/is_clint_eastwoods_movie_the_mule_based_on_a_true_story.pdfIn PDF document text
- http://xivetaf.22web.org/65967840938.pdfIn PDF document text
- https://cdn.sqhk.co/lunexubafexo/ggjgjcz/emoji_stickers_whatsapp_iphone_xr.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/kesumasaka/nimabirufutejufulinu.pdfIn PDF document text
- https://s3.amazonaws.com/dewazewokib/arjun_sarja_song_kannada.pdfIn PDF document text
- https://s3.amazonaws.com/bufipevuril/wabulus.pdfIn PDF document text
- https://s3.amazonaws.com/mupukesunobaga/marantz_sr6009_review.pdfIn PDF document text
- http://bapomel.epizy.com/adnan_sami_songs_free_songs_pk.pdfIn PDF document text
- https://s3.amazonaws.com/tisegovofu/aoac_official_methods_of_analysis.pdfIn PDF document text
- http://nipimixo.epizy.com/anova_f_test.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_off0000e549.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE549	5548 bytes
SHA-256: `630cb0e1b73c3905ad1a50dc2e87e9f3bc5e3481868303a2d5ca14f5deb8947a`
`font_01_sfnt_off0000f81d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF81D	10496 bytes
SHA-256: `4eda16472590b677a1180a38faab934147ea7227328c2118aad14f9c541e012d`

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