PDF malware analysis — malicious · 8a97e4f23aa4d4c4

MALICIOUS

PDF

78.4 KB Created: 2021-03-09 16:07:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 124c0f95bf59c39ffac93fe9eaaae7f8 SHA-1: bd838333a84e7bd41c3be5a2c517eadefabf596d SHA-256: 8a97e4f23aa4d4c4781eb042cd88d71de5f43e588f7f4117e2879a651b0db3ed

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to 'keynote templates mac free', suggesting a lure to attract users to the malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://crophysi.ru/123?utm_term=keynote+templates+mac+free
- https://cdn-cms.f-static.net/uploads/4410727/normal_6028b2fb8e340.pdf
- http://rewokujow.scienceontheweb.net/pewuxovuvis.pdf
- https://cdn-cms.f-static.net/uploads/4465703/normal_6015c15cf3e93.pdf
- http://movizopolu.medianewsonline.com/50073947918.pdf
- https://static.s123-cdn-static.com/uploads/4484990/normal_5fec8a4bbec4f.pdf
- https://cdn.sqhk.co/toxodimina/Cqjhage/62733314783.pdf
- https://cdn-cms.f-static.net/uploads/4417403/normal_601eb9429183f.pdf
- https://static.s123-cdn-static.com/uploads/4417543/normal_60067b1c28bdb.pdf
- http://instgrmmverifiedbadge.com/galodezezukvyeh.pdf
- https://cdn.sqhk.co/rufadexu/igecgdu/joker_english_song_ringtone_mp3_download.pdf
- https://static.s123-cdn-static.com/uploads/4477181/normal_5ff13a08af6d1.pdf
- http://barberking.best/baboza36jkj.pdf
- https://cdn-cms.f-static.net/uploads/4505326/normal_6041faae92202.pdf
- https://cdn.sqhk.co/nivabetaz/bjdheie/viticulture_and_enology_major.pdf
- https://cdn-cms.f-static.net/uploads/4494681/normal_6040ffefc0936.pdf
- http://kutatit.getenjoyment.net/rajetepivamepilonawobab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://kifavudufolafu.epizy.com/fine_crepe_paper_flower_template.pdf
- http://gegetebipa.atwebpages.com/nilugejo.pdf
- http://xuzujokavagud.epizy.com/xapodavimil.pdf
- http://fazovalekotevo.onlinewebshop.net/how_to_clear_descale_message_on_keurig.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_off0000f3a8.bin` `10b405f0fd364c895cdf74ccefa611ccf2a352e28f09580f7fd145c55bf9f7a8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF3A8	5232 bytes
`font_01_sfnt_off0001056e.bin` `92cc6d78c7700d77e26e7bc06fa82974fbeef9d53ac2213433d3b218ee3ea34e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1056E	11740 bytes

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