Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20d075987abd087…

MALICIOUS

PDF

78.1 KB Created: 2020-11-28 21:21:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0c6476faa2cbf766de75e11d6e8e425d SHA-1: 560df229565bba32f8cfb51796e5fadc2f758eef SHA-256: f20d075987abd087ba0cd77c677134d1033c95507569f84ad55f15c5ecb97bda
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 0.9997

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://trafffi.ru/aws?utm_term=pin+badge+mockup+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387420/normal_5fad6e80529da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492575/normal_5fb6186015201.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/zerejibixupav/zutezofisuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0e2ba9b-5c75-4f11-8605-a0a17c944cfd/10487269977.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/037e3120-364a-4cfb-b500-1a5482b1a03b/53951626998.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/kumofolipiviva.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/arrived_in_spanish_formal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f7dc9c6-fd5e-4d15-a039-56f74721ca63/24256791149.pdfIn PDF document text
    • https://s3.amazonaws.com/zewimu/23620934326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/886bd122-cb60-4110-8332-e03c3faeab37/sustentaculum_tali_fracture_radiolog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/081d9094-9e34-40b6-8d8a-839f206b1a7f/venofixosan.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/11433572381.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/a_peoples_history_of_the_united_states_sparknotes_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/3823241794.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_off0000f732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF732 5324 bytes
SHA-256: c7d67803b5357439f39317fc334223e07ea894c6fc14c94e75d2cd525666e520
font_01_sfnt_off00010943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10943 10092 bytes
SHA-256: 0187c7f2da829db8e80739be3ae360c55e1826ba8f119ee9dcf4c580a20da16b