Malicious PDF — malware analysis report

Static analysis result for SHA-256 08cc1a89d40eb324…

MALICIOUS

PDF

85.4 KB Created: 2021-05-04 01:55:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 118b3092bbccfdf1f102508e0d5ed068 SHA-1: 2bb82dcb12e14ce08292f07a6f470f68f6a84e7d SHA-256: 08cc1a89d40eb324098e33dcb9c29fee3cf1c057d0fafe9a589b68ae8ae377d8
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, appears to contain metadata related to policy documents, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://jumiwimov.ru/strik?utm_term=cdss+manual+of+policies+and+procedures+division+22
    • https://cdn-cms.f-static.net/uploads/4481831/normal_6049f4665f7f8.pdf
    • https://vowipolijej.weebly.com/uploads/1/3/4/7/134713390/gefotanofubage.pdf
    • http://fudidudigas.iblogger.org/human_embryology_stages.pdf
    • http://kisoxowizupoz.iblogger.org/lavebim.pdf
    • http://vakoxojokovuvi.iblogger.org/96222588185.pdf
    • https://cdn.sqhk.co/tisojubew/hjjjhg1/49729810140.pdf
    • https://static.s123-cdn-static.com/uploads/4407306/normal_5ff7c6cd42568.pdf
    • https://static.s123-cdn-static.com/uploads/4382771/normal_60037e6953cdd.pdf
    • https://cdn-cms.f-static.net/uploads/4461766/normal_60137ab86562e.pdf
    • https://cdn-cms.f-static.net/uploads/4380229/normal_601fc9f829cba.pdf
    • http://vugewanir.22web.org/acetylcysteine_davis.pdf
    • https://cdn.sqhk.co/fukonovum/jxargdJ/best_free_video_player_for_android_phone.pdf
    • https://cdn.sqhk.co/sowanigog/hcAFYzB/kevuxizoxoxilele.pdf
    • https://kerobasoxegetun.weebly.com/uploads/1/3/4/0/134017970/6052570.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lejaxofin.epizy.com/59032110059.pdf
    • https://uploads.strikinglycdn.com/files/63b2c8fc-38be-477e-b796-fc7b55447066/kakotofiribopixivixa.pdf
    • https://uploads.strikinglycdn.com/files/85f3b7ab-3e31-4c5e-8a05-84d9eaab65b2/84287686844.pdf
    • http://saxutidiroza.rf.gd/led_zeppelin_stairway_to_heaven_played_backwards_lyrics.pdf
    • http://lijukogibedatu.epizy.com/prevalence_of_gestational_diabetes_mellitus.pdf
    • http://rovetenexosa.rf.gd/fafibujigufomosuler.pdf
    • https://uploads.strikinglycdn.com/files/d4c18a6d-6a9f-4ab5-8718-b7281b29f0ea/regijediweteluwuxa.pdf
    • https://uploads.strikinglycdn.com/files/1407b20e-c114-41e4-af15-0c01778e528a/86873688781.pdf
    • https://uploads.strikinglycdn.com/files/477cf417-429d-4d9c-93d3-5f93ba1e7e9d/mcsa_server_2016_complete_study_guide.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_off00010f6d.bin
33cc69e50f82e9ed269b34d72b368a5f51c9af369293cdbc63e0f987dee380cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F6D 5400 bytes
font_01_sfnt_off000121b1.bin
7a362f79222df9f6b1b5c04ad5527986b34a7c5497400e11b98a7763e215ba03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121B1 11276 bytes

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