Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a599e02bfa3ad2…

MALICIOUS

PDF

178.2 KB Created: 2021-03-13 22:18:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ed9f7b4b3559463822795d71a9c918f SHA-1: e38d26e3a8fd04811d147a8c2216e2158b17e944 SHA-256: c2a599e02bfa3ad22ebd1c9d3fd6ffb5d9d7873f89d8640ba11687c42ed15733
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website related to school uniforms, likely as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect users to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=forest+avenue+elementary+school+uniforms
    • https://dezamemev.weebly.com/uploads/1/3/4/7/134746632/notifudamusik.pdf
    • https://xejotonevuxujuj.weebly.com/uploads/1/3/1/3/131379732/zefarifa-bosoxog-runogubinag-guveliforulizo.pdf
    • https://static.s123-cdn-static.com/uploads/4426822/normal_5fc8495076d7c.pdf
    • https://static.s123-cdn-static.com/uploads/4458412/normal_5fed1ddc4eae0.pdf
    • https://static.s123-cdn-static.com/uploads/4457857/normal_5fcc94619e20d.pdf
    • http://jadogaxarabu.mygamesonline.org/72546434145.pdf
    • http://ruxuzosok.mywebcommunity.org/mini_brochure_uk.pdf
    • http://supobesopo.mygamesonline.org/transition_words_to_begin_a_body_paragraph.pdf
    • http://narezekopalezi.iblogger.org/ruxumufedog.pdf
    • https://cdn-cms.f-static.net/uploads/4370264/normal_60147e4a939b3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://mafolizol.rf.gd/abbott_laboratories_annual_report_2005.pdf
    • http://zuwididag.epizy.com/5_differences_between_discipline_and_punishment.pdf
    • https://s3.amazonaws.com/jinabom/wugivasituselugunujudor.pdf
    • https://s3.amazonaws.com/jadudusujuje/42768496965.pdf
    • https://s3.amazonaws.com/tuxexi/que_es_una_concordancia_bblica.pdf
    • https://s3.amazonaws.com/purawuma/wubom.pdf
    • https://s3.amazonaws.com/kuxegu/listen_to_my_heartbeat_full_song.pdf
    • https://s3.amazonaws.com/jipowumat/dmv_written_test_answers_2019_california.pdf
    • https://s3.amazonaws.com/toliwudalamem/larogixu.pdf
    • http://zapofekeba.rf.gd/data_warehousing_concepts_etl_fundamentals.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_off00028370.bin
c9535171af68a426090245c2f398ec402f1d075d52a92c293a3e819f895bd2da
pdf-font-stream PDF embedded font (sfnt) at offset 0x28370 5240 bytes
font_01_sfnt_off00029525.bin
f413bbcdd5a65be286ba961a73cc04ae038baf8d2aacf2b27fd9796afc4b5087
pdf-font-stream PDF embedded font (sfnt) at offset 0x29525 11116 bytes