PDF malware analysis — malicious · 64cb7c0e4438c63c

MALICIOUS

PDF

79.8 KB Created: 2021-02-27 13:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bc7a09a42ffa43b089f888a628433f82 SHA-1: a23377acdace563699c21aba44e54e29472281d8 SHA-256: 64cb7c0e4438c63cc6da46c07aaefc6984ebe057e656c9cf60314487143f1e8d

96 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 trojan. It contains multiple embedded URLs, with the primary one being 'https://nipisod.ru/wix?keyword=battlegrounds+airsoft+shop', suggesting a lure to a fake shop. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the detection indicate an attempt to redirect users to malicious content, likely for phishing or further malware delivery.

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://nipisod.ru/wix?keyword=battlegrounds+airsoft+shop
- http://opsnatur.fun/soxinonomivi2vmaz.pdf
- http://5coupon.info/xadasokulezojes84g9.pdf
- http://tonagruz.ru/chumbak_marathi_movie_full90ptk.pdf
- http://jikusofare.mywebcommunity.org/wexobolusafizoviz.pdf
- http://opticsystem.website/divinity_original_sin_enhanced_edition_guider79bx.pdf
- http://rubewox.sportsontheweb.net/obs_7.3_powerstroke_fuel_line_diagram.pdf
- http://jnatural.space/streaming_websites_for_tv_shows91fcd.pdf
- https://jadekida.weebly.com/uploads/1/3/4/3/134349878/5dd62f7ab.pdf
- http://navevukosuso.mypressonline.com/why_is_gis_useful_in_geography.pdf
- http://vuvulusigi.scienceontheweb.net/fatodivikaj.pdf
- http://nejevefivi.mypressonline.com/what_is_health_and_safety_training.pdf
- http://onlinetyz.xyz/52627019373damx9.pdf
- http://razvivatel.blog/how_to_become_an_ethical_hacker_after_12thb9h3o.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- http://kivozusemu.atwebpages.com/53044702595.pdf
- http://makakanow.onlinewebshop.net/audio-technica_at-lp60xusb_edifier_r1280db_turntable_package.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_off0000edf2.bin` `f5fdf23308bde40fcfc29749fba6184f0100321b85ce061256a31c6723b032ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDF2	5236 bytes
`font_01_sfnt_off0000ffb6.bin` `a479f5e2ac36df1e01ded0f2f78fcd6970a46361ef61110004a6af2fe687266e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFFB6	10640 bytes
`font_02_sfnt_off000123ed.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x123ED	4324 bytes

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