Malicious PDF — malware analysis report

Static analysis result for SHA-256 33d8f6be9e65b329…

MALICIOUS

PDF

76.4 KB Created: 2021-03-09 09:41:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: 5d9e7926f275a6110f2c0e400ead4d91 SHA-1: 5491bc60b6fd043cf2344189bd353018e5a659cf SHA-256: 33d8f6be9e65b329c881506063e32f5f378bbe55ec488de261cc76e539806912
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://soxebez.ru/wix?keyword=terraria+download+apk+1.4', suggests a lure for downloading software, likely malware. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a phishing or malware distribution attempt.

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://soxebez.ru/wix?keyword=terraria+download+apk+1.4 PDF link annotation
    • http://wogivodugakovek.mygamesonline.org/best_book_for_ethical_hacking_beginner.pdfIn PDF document text
    • https://foreguguwikib.weebly.com/uploads/1/3/0/7/130775698/rimavekubini.pdfIn PDF document text
    • http://jegewuzewan.iblogger.org/tesis_del_cambio_climatico.pdfIn PDF document text
    • http://revinulamuxawa.22web.org/setunumopafiwajazofewalet.pdfIn PDF document text
    • http://qlemelest.online/469752775357zx8t.pdfIn PDF document text
    • https://zulevoto.weebly.com/uploads/1/3/2/6/132696122/limazukovez_zidikolegupol_tizadopogab.pdfIn PDF document text
    • https://fipamowusaki.weebly.com/uploads/1/3/4/8/134879766/2898648.pdfIn PDF document text
    • https://belexikezetuvom.weebly.com/uploads/1/3/0/7/130775063/bozexader.pdfIn PDF document text
    • http://gachihyper.xyz/poulan_p3314_owners_manualup946.pdfIn PDF document text
    • http://jajuviramigawo.medianewsonline.com/wefow.pdfIn PDF document text
    • http://fresh-ita.fun/37179940108cal99.pdfIn PDF document text
    • https://marezupudi.weebly.com/uploads/1/3/0/8/130874377/6583326.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fanutebuxus.rf.gd/japan_airlines_123_accident_report.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/booting_process_of_a_computer.pdfIn PDF document text
    • https://s3.amazonaws.com/wupuxus/braun_exactemp_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/wuvonitagojaje.pdfIn PDF document text
    • http://nibizuladode.onlinewebshop.net/pavilion_dv6000_price_in_nigeria.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/jeopardy_game_template_for_education.pdfIn PDF document text
    • http://levuras.epizy.com/programa_arde_lucus_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/11437135407.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7D 5052 bytes
SHA-256: 6236ef417fe108b8e861d4c630bf5deac81c562aeec0d13faf5ce5bd4c9ffeb9
font_01_sfnt_off0000ffd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD9 10700 bytes
SHA-256: f715904df6944b92ce1aa3e7ec42b8a903ae588bb46aa6a308db59a1b53ed967

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