Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb2c75c7ca3d311…

MALICIOUS

PDF

70.8 KB Created: 2020-11-29 07:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4d39e218b81908d4f9a69c165ec2ff0f SHA-1: daefbfb47703ac336f03beb72561fba7c0bf489c SHA-256: bfb2c75c7ca3d3119d1da518393667ed3c6c1f8da1d509799cc2ab41507d7ee4
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://traffine.ru/strik?utm_term=pros+and+cons+of+farming+organic PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366031/normal_5f86fed8185d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483338/normal_5fa9c7d8eeb07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_5f91a9a14fe27.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365627/normal_5f88294158c32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451556/normal_5fb6ee3a703ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403264/normal_5f991bd3d7e94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366398/normal_5f8970fc3c96a.pdfIn 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/sakaburepagase/zakobuxowebitojufa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af2afaac-3441-456e-9e89-f28485524f99/descargar_juegos_ps2_mega_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/72658716470.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/bms_application_form_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/75098829684.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/885b381b-12a3-4e03-93ba-665c858a99e2/49617282810.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE33 4900 bytes
SHA-256: c737b0087857ef30b2c0d2cf29530c8d78759e59608ee220cfd4c35255416c79
font_01_sfnt_off0000deaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAA 9984 bytes
SHA-256: afb6e476c0fe57afef74da622e148c35bd445a4d6ebd1279ed5aa5b22c02344e
font_02_sfnt_off0001009b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1009B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71