Malicious PDF — malware analysis report

Static analysis result for SHA-256 0508edead50a91c8…

MALICIOUS

PDF

74.2 KB Created: 2020-12-16 22:35:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: ebc7d449cd5db3cd67c952987d8ef4fe SHA-1: 782dd248f27163b64894cec4b3e593f7b2288c89 SHA-256: 0508edead50a91c827ca7b50e39c873d7d5456eb0434bc099d4247a61ae92b9d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text that suggests a lure related to a 'manifesto citation'. No scripts were extracted, but the presence of external URIs and the ML/ClamAV detections strongly suggest a phishing or malware delivery attempt.

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://trafficel.ru/strik?utm_term=an+eater%2527s+manifesto+citation PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501660/normal_5fb4d875d3d4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393036/normal_5fd923dae2376.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382793/normal_5f95c87027b50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383704/normal_5fcc5108914bf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383807/normal_5fd7f9a603a37.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382407/normal_5fb7847380f7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416921/normal_5fbd748185896.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/jivuxo/81881726632.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/67907408895.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5c7a2dd96f5918e6335c/1606376570684/56153406605.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/road_of_the_dead_1_unblocked.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/dutasinure.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64c582e537a05ef2dcca0/t/5fceb7550d4311364643b201/1607382877682/kikonutemujiludof.pdfIn PDF document text
    • https://s3.amazonaws.com/ronatiduzoxij/25406151098.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29fdf0b6b03258f4092dc/t/5fc4c4605147b14804c8baf8/1606730850330/21883777862.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc27abd116eb00e3c55ea17/t/5fc89e6346ef2e08cbba48ed/1606983267781/how_to_cook_bacon_wrapped_scallops_from_frozen.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_off0000e38a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE38A 5016 bytes
SHA-256: eee675d914b77a39a8435284e9bed38e1244f538eb4799d42236312bff49cba5
font_01_sfnt_off0000f48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48C 12500 bytes
SHA-256: 11133e001156c50b3bb2e853edc642bbdbb668d6dfaa6a991cb3b0a1a998c4d9

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