Malicious PDF — malware analysis report

Static analysis result for SHA-256 922ba69af6bba7db…

MALICIOUS

PDF

68.5 KB Created: 2020-11-24 03:34:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8284c7c776979775ec025e571af619bd SHA-1: 14bdb4f42d5c78b5a7b0160de2d35faf5c7cb447 SHA-256: 922ba69af6bba7db12894dc5bc355c9f69daf80abd27b9cc3019464a379ccf6a
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://trafffe.ru/aws?utm_term=cctv+camera+online+software+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404984/normal_5fa8ef809ae15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458137/normal_5fad65e889162.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/db3ca011-4cb3-4dab-a43c-6d3238cdcf57/75256772278.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28887f59-0e7b-4b75-b7e4-98b02eff2cef/busunes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87981167-c67a-4e54-bae9-320c380dce0c/united_airlines_boeing_737-900_jet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4bf47ab-8556-4aca-9dd2-b959549ab3f3/robisara.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c700b586-dcde-460a-b058-e476dc37c58f/annabel_lee_edgar_allan_poe_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/traffic_run_unblocked_games_76.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa124803-6f81-4189-a981-d131281b5ca8/zeforugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd50bb47-a090-40f3-bf14-aa141652977f/46627350212.pdfIn PDF document text
    • https://s3.amazonaws.com/rebomedug/xunivevepiweridas.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/25259925379.pdfIn PDF document text
    • https://s3.amazonaws.com/ronenitevodo/kingsoft_writer_2012_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/laliketofepofolejufenil.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_off0000ceaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEAF 5084 bytes
SHA-256: 87dd7fe358eee35ddbf9e395171a3f18c9989c3c6957a92e81eeab1aee0f8fb1
font_01_sfnt_off0000dff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF7 11044 bytes
SHA-256: 107b7fa01d98bd52522b4e91f9c19edcdfc2b6ba4632ab4af7327ec3bd5ed3d0