Malicious PDF — malware analysis report

Static analysis result for SHA-256 9289aeff6ad07130…

MALICIOUS

PDF

68.5 KB Created: 2020-12-10 20:48:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ee72733b0feb5c5a0da32ce2fbb06623 SHA-1: d4d114a42a277a2bada059463062cea50519c8cd SHA-256: 9289aeff6ad0713052bfc0fdfc722ed7c1503f0af03a3035d77bbd6b8c2ce46f
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://trafffi.ru/strik?utm_term=go+ask+alice+book+pdf PDF link annotation
    • https://sasogobol.weebly.com/uploads/1/3/4/3/134387633/zidale.pdfIn PDF document text
    • https://nigiseza.weebly.com/uploads/1/3/4/4/134462574/0097c51682b391.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/a1382596-d206-4ec0-8ade-0bb74564571e/mosulikuvom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e12a8ae0-523b-4902-a57e-67db6340c494/42854422515.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/2133188178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70fa345d-57f3-488d-a797-7e4507fe1be6/juwixubilef.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/coldplay_fix_you_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mupakijivuruzim/32085384826.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/jamusinoxuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e72fb8da-66d7-4571-b267-9c95112895c4/73433594839.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/boxifu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e92a0a2757459be2ed0b/t/5fc2db942dd96f59184cb8b7/1606605717789/99420283149.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84a6a26c-a8bd-4258-af8b-82d508773fd1/doxarudogikunulanetoni.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_off0000d0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C4 5288 bytes
SHA-256: e0667c6fcfa3c821d4fee3e2519fe4a3b11d4fde82f0a71511a85d39ce1ad994
font_01_sfnt_off0000e2d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D8 10036 bytes
SHA-256: 50b58a9c90217861e220217ad8c8f9c8d98059444108f7287547737dce7f86ce