Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ca06566345ad33f…

MALICIOUS

PDF

67.6 KB Created: 2021-05-12 08:35:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c29091af7b15ac39731f47097a91f9b0 SHA-1: fa4c876d73c5dbb109524533de0fe060042f2c5a SHA-256: 1ca06566345ad33f1ce653e5c8abb8dab38ddc5e913ba16ded412e120f9be221
94 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The ML classifier also flagged it as malicious. While no scripts were extracted, the presence of the malicious URL suggests an attempt to redirect the user to a phishing or malware distribution site, likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9870

Heuristics 3

  • 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
  • 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=tone+and+mood+poetry+definition
    • https://cdn.sqhk.co/gimiraxu/arXCdVg/barcelona_travel_guide_rick_steves.pdf
    • https://cdn-cms.f-static.net/uploads/4390996/normal_606ae124a78f0.pdf
    • https://cdn.sqhk.co/dijabidasu/gahaKgf/spectacular_definition_dictionary.pdf
    • https://cdn-cms.f-static.net/uploads/4392210/normal_601b1f3b7171a.pdf
    • http://lotukaguw.sportsontheweb.net/xunod.pdf
    • https://cdn.sqhk.co/lunexubafexo/fbhfQrL/avery_label_template_for_mac.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e6769739-bfe4-44db-9a58-464d141e776b/bonafivezunuxajikavamipag.pdf
    • https://s3.amazonaws.com/gapuruxumeg/all_my_sons_analysis.pdf
    • http://wojenubenizega.epizy.com/class_10_maths_ncert_solutions_download_chapter_4.pdf
    • https://uploads.strikinglycdn.com/files/17f51672-0ae4-4e59-960a-069fa44af1a9/36367299334.pdf
    • https://s3.amazonaws.com/sixenogafopoj/libreoffice_spreadsheet_remove_duplicates.pdf
    • http://bikemeno.rf.gd/how_do_you_reset_the_ice_maker_on_a_kitchenaid_refrigerator.pdf
    • https://s3.amazonaws.com/foneniz/sejuzovataxabe.pdf
    • https://uploads.strikinglycdn.com/files/7311bd61-217c-4ee4-ab71-8fe43f6ff6f3/what_is_leisure_time_passport.pdf
    • https://uploads.strikinglycdn.com/files/507bd36e-5d65-48b0-9df5-a8a51dd55a00/asus_p6x58d-e_atx_lga1366_motherboard.pdf
    • http://bujekotu.atwebpages.com/sindrome_anemico_definicion.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da0a.bin
4bbff23678620d7cfaef10f7a787df632c68e9ae0f68ae09d0cb90ca97fa8830		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA0A 5028 bytes
font_01_sfnt_off0000eb1c.bin
531f7d1a1e79d6e149f1be501e864ddf9791d1adfcdb6b64862a865a3e9a8de0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1C 10500 bytes

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