Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12d99b752f150d7…

MALICIOUS

PDF

85.6 KB Created: 2021-04-01 17:39:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 881d43112be012024a0797ca27248da6 SHA-1: 9588689d403c592b00a2b40ec48a6301cb77a19f SHA-256: f12d99b752f150d73aad5e5a71405f010175ec5a1e4f82805ecb0639b08b12bf
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/wix?keyword=body+beast+workout+schedule
    • http://wonder-ita.fun/acetylcholinesterase_inhibitors_mechanism_of_actionjy7s9.pdf
    • https://gesimuto.weebly.com/uploads/1/3/4/6/134685476/2761385.pdf
    • http://keysecret.ru/do_carbon_monoxide_alarms_keep_going_offzp9zz.pdf
    • http://edaruzal.xyz/digital_photography_lessons_online_freef8mib.pdf
    • http://afracheat2.xyz/proform_585tl_treadmill_partskkqnk.pdf
    • http://fb-copyright-help-from.com/vezuvilezikasw3lxz.pdf
    • http://gelchlen.fun/blank_navy_brag_sheetyjk2l.pdf
    • http://meetsol.xyz/what_is_the_half_blood_prince_movie_about96hq0.pdf
    • https://binapesod.weebly.com/uploads/1/3/1/4/131438069/sunuvidepuvej-tarenu.pdf
    • https://cdn-cms.f-static.net/uploads/4379038/normal_6045f8eb7ec9d.pdf
    • https://cdn-cms.f-static.net/uploads/4448724/normal_60412e0e05c4f.pdf
    • http://ampinternational.org/yasmin_mogahed_reclaim_your_heartevks9.pdf
    • http://remont-pc.website/mepegavajiqhs3g.pdf
    • http://ellmax-site.xyz/halloween_candy_powerpoint_templatefk4ak.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zepifudoxapo/bewabiduzapubebivitejeteg.pdf
    • http://pugomifo.epizy.com/luliwuvabuvazezupurez.pdf
    • http://tubuzezaw.rf.gd/zaminab.pdf
    • https://s3.amazonaws.com/bomifabipi/lelirofolu.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_off000112ee.bin
63d04f127367ca3471c2640b305c8e7f61c4e2b4398d6d4c1c22ca9297b15971		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112EE 5472 bytes
font_01_sfnt_off0001259c.bin
1629acfd4e70244858ead76ee7558cc9898bc781ad28ceb180e6753564dc1bdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1259C 10572 bytes

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