Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b4e759546647c19…

MALICIOUS

PDF

84.7 KB Created: 2021-03-18 09:29:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: da8859674dfebcd4749b8f8eb444730a SHA-1: 1bf2a6df02f7429a96c7a5f126e05edc24de5391 SHA-256: 8b4e759546647c193c97e68d8dd7b8f33a6b3fc9db26cb2d6f5378ecf9a55d7a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://soxebez.ru/strik?utm_term=christmas+family+feud+game+questions+and+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4470535/normal_60192c03d62ac.pdfIn PDF document text
    • https://cdn.sqhk.co/marixefe/0zIQUjc/real_bike_racing_download_game.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/KhciUij/54175765946.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453560/normal_5fd680e2d1a21.pdfIn PDF document text
    • https://cdn.sqhk.co/divoxisig/WHjhjgA/lista_de_presente_tip_top.pdfIn PDF document text
    • https://cdn.sqhk.co/nepajenine/gew4mTv/unblock_ball_block_puzzle_level_51.pdfIn PDF document text
    • https://cdn.sqhk.co/lejukujegomi/jhFofhf/gojodupiwizuxokitodon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476133/normal_5fdbdef217828.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/RQlibra/fuzanapatamula.pdfIn PDF document text
    • https://cdn.sqhk.co/misumirotoj/gohdB2x/wordscapes_level_108_cheat_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/jabosuve/Arfijjg/xugugido.pdfIn PDF document text
    • https://cdn.sqhk.co/lexuxeza/ihjji4A/58147505806.pdfIn PDF document text
    • https://cdn.sqhk.co/kotoweraga/hgZfige/wojuvemizerugununegesut.pdfIn PDF document text
    • https://cdn.sqhk.co/pedagukar/gkgiHhd/scorpion_moves_mortal_kombat_xbox_one.pdfIn PDF document text
    • https://cdn.sqhk.co/guvelebul/g7jdjaW/34504431150.pdfIn PDF document text
    • https://cdn.sqhk.co/tedefoso/oEjY3zE/jurassic_world_the_game_apk_editor.pdfIn PDF document text
    • https://cdn.sqhk.co/xozifejor/jc8Inia/70257590331.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415934/normal_602e44de3e93d.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxoporerom/hhg5ig5/melody_of_memory_song_list.pdfIn PDF document text
    • https://cdn.sqhk.co/bexefoboxevi/hbCXjcc/49335484372.pdfIn PDF document text
    • https://cdn.sqhk.co/zevijevam/ijPkgiE/smash_mouth_concert_south_dakota.pdfIn PDF document text
    • https://cdn.sqhk.co/vabilafibalu/jajdQjb/stickman_rope_hero_vegas_mafia_crime_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/pewesopefim/hdjiv2b/smash_bros_characters_dlc_2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF90 5544 bytes
SHA-256: 1987c3c897e5370a52b27760077d2075a18d70674b0d51f482907f5083a28858
font_01_sfnt_off0001124d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124D 10840 bytes
SHA-256: 0ccd632380712e26512e2fafeea6bd79d8ee86ad2c0cdf763967d5755c0084ee
font_02_sfnt_off00013732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13732 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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