Malicious PDF — malware analysis report

Static analysis result for SHA-256 2317a6b655af6384…

MALICIOUS

PDF

79.1 KB Created: 2021-03-11 09:49:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 93b4dd6efc6a5f6cd7031e6e7e67b93b SHA-1: 2166c4222dd846583283835ac48b05be7366c968 SHA-256: 2317a6b655af6384db2c3d8b12d9ccf41135a09a2777f24bd3e11fd1a902d35e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a suspicious domain, likely intended to trick the user into downloading a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to financial trading, suggesting a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://gimoguvi.ru/award?keyword=combining+bollinger+bands+and+rsi.+pdf PDF link annotation
    • https://cdn.sqhk.co/fefamuve/hjqudge/pinball_museum_delray.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392877/normal_6008e84f462c2.pdfIn PDF document text
    • http://keep-travel.com/nevivesinirepblcvf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485699/normal_602e00aa52900.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410013/normal_5fd7e775df403.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365567/normal_5fec68268591b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417652/normal_5fd76b7c6154f.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/iahfB4E/35185047239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380078/normal_602390225b349.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447877/normal_5fe0f03e5c5ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403952/normal_5feb4db698dd5.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/7wjfgeQ/learn_python_3_freecodecamp.pdfIn PDF document text
    • http://uablog.website/changer_ecran_kobo_cassqyquf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416939/normal_5fcb20dc09abe.pdfIn PDF document text
    • https://cdn.sqhk.co/lusajiki/Ul0geQj/ds_battery_saver_pro_apk_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379961/normal_6041ce0b54ffa.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/wujanozo/82362234146.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/wamijipisirovugetiwigakez.pdfIn PDF document text
    • https://s3.amazonaws.com/ratixifo/flyertalk_ita_matrix_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/boreku.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/jamanununobaxejululaviw.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/fakudukumigexuvasefelod.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/suguvosigetiporuge.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/acunetix_wvs_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/1821861430.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_off0000f8a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A8 5440 bytes
SHA-256: d4b2c4e28a98e4e128f119a20936aa82cdc5108a04e4316d450b201e803f7327
font_01_sfnt_off00010b0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B0B 10324 bytes
SHA-256: 3b05fc889bf90c3cf7fae1353dd4a4ceb8a736440295bdaa7afc2be7eb0ef7a6

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