Malicious PDF — malware analysis report

Static analysis result for SHA-256 27da8fa2e120ef6f…

MALICIOUS

PDF

74.8 KB Created: 2020-12-19 02:26:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ba30970508d5564a44fd15ae6a5f1405 SHA-1: 9287751b13095c6f2fd50c1be317e3e9c569f0a3 SHA-256: 27da8fa2e120ef6f5211e91b1527d15db9286848a6086a12e8725ad87fc771ce
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://traffset.ru/strik?utm_term=pandora+apk+mod+ios PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4530171/normal_5fce969804486.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498893/normal_5fcd582ecb03f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411935/normal_5fa48fa45575e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d8093d5-10f1-4492-8cad-b9f1f3355836/zowur.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/rorilafafagekilurorari.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/the_divergent_series_ascendant_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/006db58f-46a1-467a-ab59-2515cf88686a/sumaxunefovadudatazosoge.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/9850615069.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/circuit_simulator_applet_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/motejavofozezixivo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f18f0cdb-5fdb-4c7e-8f84-e75886106216/i-85-85i_is_true.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8cdc51e-a043-435e-8726-92b12a0c74f9/vuzanikenobudinike.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/siwekise.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_off0000e925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE925 5136 bytes
SHA-256: b9304aa1c788d0a219f1f5e9873b267eee7e9a3ca59aa3bdf98e0c83fe557798
font_01_sfnt_off0000fa86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA86 10704 bytes
SHA-256: 3eb52c8402a89b964b5cb713accc7211dd7757adcb57bc93abffbb5771080ff3