Malicious PDF — malware analysis report

Static analysis result for SHA-256 c804758b3574755b…

MALICIOUS

PDF

80.5 KB Created: 2020-11-10 18:39:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0239bb95410c5d70a5042cb404c12bfb SHA-1: 5b0318d4b5b3ddf3b72805922e171b91d62d3f58 SHA-256: c804758b3574755b18473a557b76d3720001df3214e8e7d1bc275092318453c5
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 0.9910

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://traffnew.ru/aws?keyword=kurask+slayer+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416660/normal_5fa416fab50b0.pdfIn PDF document text
    • https://gowubezu.weebly.com/uploads/1/3/4/4/134497845/guruvojijo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382780/normal_5f9067ce2c5ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448129/normal_5fa8a5c2a780e.pdfIn PDF document text
    • http://www.opentle.orgIn 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/kevava/wofir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea124fd-b5f1-4569-816b-a78b465dc69c/fijibavivupiruga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/598537b7-0c7c-4568-ba83-a6b5cf51840c/dextrocardia_telemetry_lead_placement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d10ee047-d0a4-47c4-9307-6a74706122fd/gakemate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ea2ac65-27bd-4c97-9cdf-bfb25a27b197/masubimilokamuxekep.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000e01e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xE01E 12172 bytes
SHA-256: de5cbc36f35053fcfb973c5754707aa01d06946eea899e74b338619f7e29ff8e
font_00_sfnt_off0000d017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD017 4716 bytes
SHA-256: 7769626465cf40255d3dea6d5876acdaf7f68361082875a6691397a7d7cca216
font_02_sfnt_off000102a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A5 10708 bytes
SHA-256: 69368f5f49e373d34b77f1176e863f1a14d0e9f8b61bd76f80362d19240dc043
font_03_sfnt_off0001272c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1272C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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