Malicious PDF — malware analysis report

Static analysis result for SHA-256 6643c0fc8fce5d1c…

MALICIOUS

PDF

168.4 KB Created: 2021-04-07 08:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f97f43f5df06c0facf202e8b0ce79de SHA-1: 26e7a7275f28382f1719cc9c84553f3942d7a361 SHA-256: 6643c0fc8fce5d1c0c28e38d05557932659faa398b7bb20b311b29d48c434636
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains an embedded URL that redirects to a malicious domain, likely to host a secondary payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to arts and crafts, which is a common tactic for phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/wix?keyword=eastern+woodlands+arts+and+crafts
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5fede28fe9a4f.pdf
    • https://cdn.sqhk.co/nakunadubux/4jbidjd/34854328671.pdf
    • https://cdn.sqhk.co/gulifunanale/ihjhgQA/total_football_soccer_strategy.pdf
    • http://netewe8.xyz/69615919501avkiu.pdf
    • https://cdn-cms.f-static.net/uploads/4370746/normal_601be0d31af48.pdf
    • https://cdn-cms.f-static.net/uploads/4483083/normal_5fd8ba3cc25c9.pdf
    • https://cdn-cms.f-static.net/uploads/4501998/normal_6015c7f202c00.pdf
    • http://xteenware.online/saditelazutigimuza75r.pdf
    • https://static.s123-cdn-static.com/uploads/4426955/normal_6005425ac3875.pdf
    • https://cdn-cms.f-static.net/uploads/4422163/normal_601ca970ef598.pdf
    • http://ideal-it.fun/seduturiziwostctl9.pdf
    • http://hangookoil.ru/interview_logical_questions_with_answersz3tj7.pdf
    • https://cdn-cms.f-static.net/uploads/4407810/normal_602707fca0ed6.pdf
    • https://cdn.sqhk.co/wukopojenava/jeFe4ha/lewamimi.pdf
    • https://static.s123-cdn-static.com/uploads/4456685/normal_6009162e1ee25.pdf
    • https://static.s123-cdn-static.com/uploads/4497071/normal_5ffc6ce45e5da.pdf
    • https://cdn-cms.f-static.net/uploads/4501804/normal_606926292f90b.pdf
    • https://cdn-cms.f-static.net/uploads/4484812/normal_606004602e3ec.pdf
    • https://cdn-cms.f-static.net/uploads/4403263/normal_60649965e3283.pdf
    • https://static.s123-cdn-static.com/uploads/4369933/normal_6006c5a358e41.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/165007cf-7175-43c3-8296-518a9255a881/chetan_bhagat_one_night_at_call_center_free_download.pdf
    • https://uploads.strikinglycdn.com/files/8b4fb919-d733-4145-b7e3-f75d987e8959/38582405973.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_off0002587e.bin
d3b46313f17f5b717287b293caaf07584e268eda129066698fc4247d207e562c
pdf-font-stream PDF embedded font (sfnt) at offset 0x2587E 5064 bytes
font_01_sfnt_off000269dd.bin
784d2f0c723a6221c2019ddf1512f8548439c3b24bccc376250e03c7626dc747
pdf-font-stream PDF embedded font (sfnt) at offset 0x269DD 13360 bytes