Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22b289c2675c35c…

MALICIOUS

PDF

77.4 KB Created: 2021-02-14 18:25:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 31006463908d55680c9f28fe8f672dc4 SHA-1: fe513fbe6b7fae53ae092e57bcf099688957db25 SHA-256: f22b289c2675c35c1ffd82faf0893ef5f9a7ca913111adfac6aaf5a920c782de
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL that directs users to a suspicious domain, likely to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, suggests a lure related to 'Predator prey lab activity answers'.

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://baarspo.ru/123?utm_term=predator+prey+lab+activity+answers PDF link annotation
    • https://cdn.sqhk.co/nabaxifow/Aihaidt/42875405019.pdfIn PDF document text
    • http://ronojalad.22web.org/36266906756.pdfIn PDF document text
    • https://cdn.sqhk.co/fevivesuxofo/zgcb2gf/games_like_spongebob_moves_in.pdfIn PDF document text
    • https://cdn.sqhk.co/wumidimux/5jqF7hd/78235630892.pdfIn PDF document text
    • http://medway24.com/werupapuborawiroxazetegelfztap.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/NZibzc1/red_ball_4_volume_3_unblocked.pdfIn PDF document text
    • http://lawigimik.iblogger.org/home_again_2017_full_movie_free.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
    • https://s3.amazonaws.com/regegozumekoza/jazz_and_blues_experience_album_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/buy_brochure_templates_online.pdfIn PDF document text
    • http://dikinobi.rf.gd/82030133490.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/forejajafer.pdfIn PDF document text
    • http://bomigezi.epizy.com/b_pharmacy_online_form_date_2019.pdfIn PDF document text
    • http://tesapul.epizy.com/sokefone.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/jivad.pdfIn 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_off0000e45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45C 5248 bytes
SHA-256: 03e2fc90268bb7c96f796675c5bdceba422d7d9029e83431a41cd9be2524a99c
font_01_sfnt_off0000f646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF646 10660 bytes
SHA-256: c0097544a8b6039e6dc27e7afb414b4b9ae394728e3d456be167e7bbb2a80f91
font_02_sfnt_off00011ad1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AD1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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