Malicious PDF — malware analysis report

Static analysis result for SHA-256 32e935ab0153def6…

MALICIOUS

PDF

77.0 KB Created: 2021-02-05 05:53:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6fd6e58d5224651294ed92003ec72009 SHA-1: 7b0af2541d5287e92da3b98c0cbd91dc9f98439e SHA-256: 32e935ab0153def69912203c96221f475b49a4b6e9639b13a9c63fee053bd4da
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains an embedded URI pointing to 'baarspo.ru', which is likely a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing attempt.

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://baarspo.ru/123?utm_term=anime+demon+girl+drawing PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414869/normal_5fd5f7f34afc4.pdfIn PDF document text
    • https://cdn.sqhk.co/gobumavurob/Ydhh7ji/christmas_runaway_bride_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403938/normal_5fe632e821f3d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367268/normal_5fe17db1c4970.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404953/normal_5fd8cd6e79c75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499999/normal_600ae4ecb3e6e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378607/normal_5ff292837a45c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410016/normal_6011a7957a08e.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/woxewiwupir/rizavit.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/25391846455.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/sipojimur.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/autocad_software_free_2006.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_off0000caaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAF 5048 bytes
SHA-256: 1ae10ede3bfcc0d30c60dc13276795fb6f5bc8decf3c1929f7eea116dcb40a8d
font_01_sfnt_off0000dbc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBC9 14632 bytes
SHA-256: 39c4c32041052fcee9ce7ff40449d2c3a626e338269de073e7f7577b2fb46db8
font_02_sfnt_off0001035d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1035D 10612 bytes
SHA-256: f777a82209bec826243e82b8a7a81c5787634334e52503d2a17da0a76e80199e