Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b8c0013d7d0b8dc…

MALICIOUS

PDF

66.4 KB Created: 2020-11-25 15:25:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: a59d43f973be6c3bfa9afd04a9754f26 SHA-1: d413319b39b778943a8d357abc37bf5a085c8db8 SHA-256: 6b8c0013d7d0b8dc6644638894a89d2d7c48a4bf2c52268c314d292fccf89201
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://trafficel.ru/strik?utm_term=madonna+time+goes+by+so+slowly+remix` suggests a phishing or malware distribution lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to redirect users to harmful content.

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://trafficel.ru/strik?utm_term=madonna+time+goes+by+so+slowly+remix PDF link annotation
    • https://galuxenezinex.weebly.com/uploads/1/3/4/4/134437763/jobixoredojowusidu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413110/normal_5fbdd69e04433.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370078/normal_5f8ceeb627d3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378175/normal_5faed9c461478.pdfIn PDF document text
    • https://polabufasol.weebly.com/uploads/1/3/2/8/132814050/refudomo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403541/normal_5fa2ab9df31ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451021/normal_5fa26abbedf9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479938/normal_5fadf07cc26ea.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/votuweroxigezog/words_that_start_with_hai.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/animals_tamil_dubbed_movie_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/kiledawes.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/tagamixibukefamiw.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_off0000c15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC15E 5552 bytes
SHA-256: 3b427905ab4f104d630b87bd24f7395bac374a4f8c4132e3df5cae4fa45dc07e
font_01_sfnt_off0000d44a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44A 14384 bytes
SHA-256: b23f3bec2c52a74773578e3c38d8587d486129fdc12f048e3a2331ec6a6870fc