Malicious PDF — malware analysis report

Static analysis result for SHA-256 da6a9d78486094b0…

MALICIOUS

PDF

63.3 KB Created: 2020-12-01 11:48:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e48f39f08afee708971c71e4c0eefeff SHA-1: 5780254baecdcc4c1f256d7bd5a986884d507c7d SHA-256: da6a9d78486094b029889c96fe408e5693cde196ed1b84d78bdd06d61f62f346
96 Risk Score

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 0.9998

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://trafffe.ru/aws?utm_term=distance+time+graph+exam+questions+answers PDF link annotation
    • https://foposivore.weebly.com/uploads/1/3/4/4/134472686/2150923.pdfIn PDF document text
    • https://pilovezodono.weebly.com/uploads/1/3/4/3/134313857/8cded7b631e5.pdfIn PDF document text
    • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/4286708.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/d3b495ee-546e-47c8-9ca5-23a5b3dde868/21742498969.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/platform_booties_white.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fc444eb-a3c9-47de-9f26-eb8c66229c2d/tevekijokopubenil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcfdcbe2-d8b9-4807-8fb2-a750462e7a02/champions_online_archetypes_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/fat_horse_beans.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc107c868612547ed5eda4d/t/5fc14451cb3e0f57717defd2/1606501462951/xiwidisemupakuti.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/filewadanamamatil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3eadbaf4-dc5e-497e-927f-3c6b34bed505/89572117144.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e92df20-793d-4094-94e4-dbc247b4b67b/muxuloj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3a0bc94-4696-419f-9103-83e0f8ee13a9/medijofubopisofedubitiki.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_off0000b956.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB956 5600 bytes
SHA-256: b74b4f55cc3d29db947dfd43d776d5258342cc0f31d5f1a55eae61e69bbeff4a
font_01_sfnt_off0000cc51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC51 10584 bytes
SHA-256: e5e33a915f0174bf8f1f2f1841d63bc81826063603310a4c70a821274ef5439c