Malicious PDF — malware analysis report

Static analysis result for SHA-256 200d097b12e125e8…

MALICIOUS

PDF

83.5 KB Created: 2020-12-23 10:21:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: b8f056928c7e299d18fb01bd8b86261b SHA-1: 8831311c87451ad8f38e364534ff00b8f733d9c1 SHA-256: 200d097b12e125e8e7cde6f58a1a70e246611754166536eaff32bae7250f3f3f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing. The document body, though heavily obfuscated, contains keywords related to cryptocurrency, suggesting a lure for financial scams.

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://traffset.ru/strik?utm_term=bitcoin+ethereum+ripple+litecoin PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377379/normal_5fba988a8ff09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393916/normal_5f971c3f080da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/0834c5de-e321-4cd9-86b9-ca88078e4485/24742194658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a25af4bb-2b6f-4664-bf6c-ad1fccada78f/soworebilofitorokoke.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5203dc30a162e0c6de521/t/5fd1ced6b0f0f842d7a723f8/1607585495250/smart_load_wallet_dealer.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/general_appropriations_act_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93bff000-db30-4bc1-bbc0-2946691ddb0d/15303684848.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e34fb2c9-9e66-4751-bf16-15d31039f6a7/86538064323.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d9f860-eda9-478d-beb1-7ddcad259959/90599510453.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d969185-c350-4f58-a90b-82f12100cdef/7466465642.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a302f5-5ade-42c7-8d27-0fe4807f5d18/wumijumuwuduguxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc49172e-26e3-47fc-b9cf-966028e72322/perry_theater_ga.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF51 4716 bytes
SHA-256: 8ecf10f554c9d15501cba4e4ead13a382f0c875d48f3ddffb0dd3c6d44425f60
font_01_sfnt_off00010f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F18 10548 bytes
SHA-256: 74be1f591556dbf36328d6d7b414e6e252b9d254ad8d0b0e99d0ec6d46b04c8d
font_02_sfnt_off00013310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13310 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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