PDF malware analysis — malicious · 567f115ef000ff84

MALICIOUS

PDF

74.4 KB Created: 2021-03-30 07:23:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a82a8736c40222923304075122ebae39 SHA-1: 24cfbeac5e58896ac04abe7445f5c247fc1ab0fa SHA-256: 567f115ef000ff849833d09ace093e4bcefec20482fd6edd874290ede69b0cdc

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 an embedded URL pointing to a suspicious domain, which is likely the primary payload delivery mechanism. The document body, though heavily obfuscated, suggests a lure related to calligraphy, aligning with common phishing tactics.

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://vilenefex.ru/strik?utm_term=how+to+do+calligraphy+with+pen+and+ink
- http://creditscorehelp.info/hmdx_rave_bluetooth_speakero4y5q.pdf
- http://microbestdigitalmeter.xyz/air_fryer_recipe_book_healthya7o2e.pdf
- http://driveformclanemilwaukee.com/kusixonixagabizif9k7qh.pdf
- http://vannabanyavsedela.xyz/forces_1d_phetmf67v.pdf
- https://cdn.sqhk.co/mewivupa/4whcidL/ffx_monster_arena_steal_list.pdf
- http://opensalon.xyz/26861836956lqsok.pdf
- https://cdn.sqhk.co/gituridewo/hZljehc/papajajenunagiwuwekiwuzet.pdf
- http://miribut.mywebcommunity.org/varied_commodities_recipe_book.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vifusupegiza/american_sniper_2016_full_movie_free.pdf
- https://s3.amazonaws.com/fukezavazuj/henry_halley_bible_handbook.pdf
- https://uploads.strikinglycdn.com/files/76d565c7-9510-4ec9-aeb7-162ed9351e39/falugusuna.pdf
- https://s3.amazonaws.com/jupevuxirapi/les_trois_mousquetaires_dessin_anim_episode_14.pdf
- https://s3.amazonaws.com/dogazisuze/65317785237.pdf
- https://s3.amazonaws.com/watajive/zebatamunadom.pdf
- https://uploads.strikinglycdn.com/files/8c336daf-e4ca-4590-8988-332440d4c9ed/primeros_auxilios_basicos_para_nios_escuela.pdf
- http://pojoviraxerojo.myartsonline.com/59969294776.pdf
- https://s3.amazonaws.com/sizabo/45775837195.pdf
- https://uploads.strikinglycdn.com/files/836a740b-124c-441f-93e0-4294df3c3332/bontrager_node_1.1_not_pairing.pdf
- http://rosajeku.myartsonline.com/dixofinapuped.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e997.bin` `a8860c4710dffddb412d47e26788b8518b5ff9ba3376ede75309d12d87344c0f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE997	5376 bytes
`font_01_sfnt_off0000fbee.bin` `3874f102aa6b0bd7e7c00e6b86c0546973ee603f2d36039ced0c7171f548c452`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBEE	9556 bytes

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