Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a9fbc3ce525a584…

MALICIOUS

PDF

79.4 KB Created: 2021-02-14 02:05:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e76e1ef4f20d12c6f4a1e72d51fc85e1 SHA-1: 2100e2aac49d803f5263fbec6f45ec2a7e3d7dcd SHA-256: 1a9fbc3ce525a584f94fc3623e5c45ef8034a846334c509a812d76e54f2f0ff9
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 suspicious domain, likely intended for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains keywords suggesting a lure related to gaming scripts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wix?keyword=gun+script+roblox+pastebin
    • http://alcexpress1.xyz/slope_intercept_form_to_point_slope_formb9qmz.pdf
    • http://donobidabi.22web.org/41623742664.pdf
    • https://cdn.sqhk.co/lapefuxolu/fidjihd/basketball_wallpaper_apk_download.pdf
    • https://static.s123-cdn-static.com/uploads/4491451/normal_5fdd995b52d49.pdf
    • http://fitokaps.xyz/47398723994hls0m.pdf
    • http://prodive.su/dekifodonon87zy.pdf
    • https://cdn-cms.f-static.net/uploads/4492246/normal_601bb6b3c21df.pdf
    • https://cdn.sqhk.co/gufuluzibos/ibGyohc/orange_tree_resort_golf.pdf
    • https://cdn.sqhk.co/savaketiju/UFIsghn/68111942009.pdf
    • http://freshnatur.fun/49613215581y9l9d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://ruxududomaba.epizy.com/10_characteristics_of_good_information.pdf
    • http://kitukogoxav.epizy.com/86094461759.pdf
    • http://fanodawenu.rf.gd/brand_guidelines_indesign_template.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.

FilenameKindSourceSize
font_00_sfnt_off0000edbf.bin
7971418ce339dc85f7279849c3a33a90ca6b425374fe7f32ad46ca6a69765d26		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDBF 5168 bytes
font_01_sfnt_off0000ff65.bin
6ca1a9088a672664d9df98903d4aa0683fa5b92400b33d4f5b234c125483b59f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF65 15416 bytes

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