Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e3369701829c11…

MALICIOUS

PDF

73.3 KB Created: 2021-01-06 20:06:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 12594496fc993270da399b2f9bde5b01 SHA-1: 777c091a86151d14c952d77ea6532f24cb55bc02 SHA-256: e1e3369701829c11cfdba1880819ac519c09c484d524dbeeb7d0d4a1ce124cb0
96 Risk Score

Malware Insights

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

The PDF file contains a lure disguised as a train reservation ticket booking form, which is a common phishing tactic. It embeds external URLs, including one pointing to 'trafficel.ru', likely to redirect the user to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan.

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://trafficel.ru/aws?utm_term=train+reservation+ticket+booking+form PDF link annotation
    • https://cdn.sqhk.co/suwapipejob/eiihTHR/world_of_kings_codes_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/libegavezu/cBihgg5/tuxukixefupunelebor.pdfIn PDF document text
    • https://cdn.sqhk.co/dakizenewa/hagjijF/25818769527.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/W2chitz/cake_baking_games_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/turip/jawono.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/transformation_of_graphs_of_functions.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/colorectal_cancer_screening_guidelines_acs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9394052b-2284-4b63-8e19-1c8aa3c55380/lebatenepidikewez.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/404-963-8261__-8820.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/nuxijidoxesofibed.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/bojupib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9214142-aa1d-470b-8ac4-e39bf0a37fd3/53273891988.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8356724a-73ae-4d06-96ea-7c45041e187c/70363527213.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/search_all_software_free.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_off0000e036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE036 5384 bytes
SHA-256: 36f0127c16889a247764ea570809f8348ec93516c5dca413c90518929e584490
font_01_sfnt_off0000f280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF280 11092 bytes
SHA-256: 4eb9807055220a37f7d2184ff9676aab3fd27a18dc62dfe03b866f596806ff6b

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