Malicious PDF — malware analysis report

Static analysis result for SHA-256 293738571af03f8d…

MALICIOUS

PDF

78.2 KB Created: 2020-11-18 10:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 8c97fcde66e4291599905c3ea1ed1e74 SHA-1: 15600e667c71c5b9fc4e366824cffb5114f31cbc SHA-256: 293738571af03f8db8007c41af78040bdcb546f9cfb7f6e9da28c3b7ce119d90
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=path+of+exile+steel+ring PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380395/normal_5f9c82c5a136d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_5f9ee40d3e552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_5f971de05ab2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416929/normal_5f9f912d8729c.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://s3.amazonaws.com/tibanepoxilibud/tofusifokegavilobofimumel.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/tijixiduzupop.pdfIn PDF document text
    • https://s3.amazonaws.com/desenaz/65065142734.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/446962cc-68f7-4766-8946-7d29f4d83fa6/moxur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e75e287-d8ff-4308-b6d1-0276341178b1/herbert_sobel_son.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/90260999057.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/antidiabetic_activity_of_medicinal_plants_2015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ab2a7b6-9cfd-4d55-b724-8b1d7fd04af2/kingdom_classic_cheats.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/controller_gain_calculator.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBDD 2908 bytes
SHA-256: 29b5462f6d4f2e36516d2ef041061802199b3deffb5a600a0883ebe51ffcdffb
font_01_sfnt_off0000e62c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE62C 4888 bytes
SHA-256: 589d81e1dff3c6d255441aad90f60318175533ff1cdcf3057faf6aa203955e26
font_02_sfnt_off0000f6c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C2 11816 bytes
SHA-256: a67931522f633c4a96e6394f42f818a74bfdab08099581d09a7a1bacbc14c586
font_03_sfnt_off00011d7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D7A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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