Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d8c0a19f84bb43…

MALICIOUS

PDF

76.7 KB Created: 2020-11-13 02:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 52b552062a1be9d9cf7e3761469af96f SHA-1: 24e61c04f26394e0726db4a30831283996471cd8 SHA-256: 84d8c0a19f84bb43c958ad4af49832d341de9fa3b75d31431944e5615cd4230b
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://trafffi.ru/123?utm_term=cara+hack+vlogger+go+viral PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402481/normal_5f9260314d0af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_5f93f2ca25238.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372955/normal_5f93dfac933b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369638/normal_5fa65044e586c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375350/normal_5f8b38830347c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_5fa8369438d3d.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/4796d9d4-f4cc-4d9b-ab56-ae3e45ee1313/loveliwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfcf893c-b0c9-444f-a3be-7df1d9158543/folugawonarusibebideza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5f1f6df-ec59-4d0b-9eb9-fb7c95a21bde/wijakapumatefuriretod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd5128a5-52f5-4dcb-8f8f-69bf20bfb295/92687636532.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad714e03-c724-437f-b080-bd72a4d78f5f/niburuvorepagejegodejiwi.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/nerifadosepanimedo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59eee858-11d5-4d78-b1ff-289844dd7d82/wupanemif.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://tinyurl.com/vlogger-go-viralIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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
font_00_sfnt_off0000cd82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD82 2880 bytes
SHA-256: b90b109c34db9b2d961be312c0c64f13ba4f5af9c83d6ae4556a72cb7f468167
font_01_sfnt_off0000d7c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C0 4912 bytes
SHA-256: 25fa87550e2e0d2a617cb4572b08bc2c919a0c8d61bc9116ce2ed490167beb01
font_02_sfnt_off0000e876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE876 11316 bytes
SHA-256: 563ad254997c30c36eeefca169e6402873fa23a3bffa699144885532dc5f8d3c
font_03_sfnt_off00010ea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA1 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd

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