Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb270487baafe95…

MALICIOUS

PDF

80.6 KB Created: 2021-03-16 09:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd3e4ace86a5573803bf1730e610eca6 SHA-1: d824b2523f4032f78575301f47017046dbed3b82 SHA-256: 2eb270487baafe953228c256c3e54a6dbae0eefba4a57ecb5b9e84046e1d1a54
104 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 presence of an external URI pointing to 'xezojetit.ru/award' suggests a lure to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing campaign, likely using a spearphishing attachment as the initial access vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/award?keyword=kindle+converting+pdf+to+mobi
    • http://jejarit.iblogger.org/program_evaluation_report_outline.pdf
    • http://detonic-de.website/wallpaper_samsung_a51_5gkn3xy.pdf
    • http://osummer.space/jam_retro_speaker_reviewzhdkc.pdf
    • http://mscgis.net/68556571283st2bt.pdf
    • http://24goodstore.site/blockchain_dns_firefox_androidho4g0.pdf
    • http://parrrtner.xyz/95699770749ejvlr.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sojuravewi/worlds_biggest_crossword_answers_1.pdf
    • http://paserarun.rf.gd/wd_my_cloud_local.pdf
    • https://uploads.strikinglycdn.com/files/d0ad9315-f84d-4af3-9645-87da2f41f872/vetudumibipofutobu.pdf
    • https://uploads.strikinglycdn.com/files/5519b9ca-0b85-4efc-830b-9b8679d3a65c/husqvarna_323l_weed_eater_parts.pdf
    • https://s3.amazonaws.com/kavifunaruvi/59118782585.pdf
    • http://lometazojubusi.rf.gd/sagegojirodafomi.pdf
    • https://s3.amazonaws.com/vifusupegiza/70621481568.pdf
    • http://mowumaja.epizy.com/kubipamevemefuwemubinub.pdf
    • http://guwajogijifode.rf.gd/22227308772.pdf
    • http://kuxoxokazutuv.myartsonline.com/68717360028.pdf
    • http://vesedakowata.onlinewebshop.net/97088883591.pdf
    • https://s3.amazonaws.com/pirofopafu/69620754329.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_off0000fdc3.bin
b701f382d9fe9cba348c71dc18d2d42548f3da89ee7aeee6c9d2779b4145bc08		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDC3 5256 bytes
font_01_sfnt_off00010f9d.bin
a0202338ead8f12739cfe55303c4451f6f8ed6f753241ef72451a5780b5f30b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9D 11048 bytes

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