Malicious PDF — malware analysis report

Static analysis result for SHA-256 6056b5697bd7377c…

MALICIOUS

PDF

69.8 KB Created: 2021-05-11 17:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 0a012e523c238e1f7fceb947657a0b48 SHA-1: e06eedd644e5fe1a82e1f351f9c803a9515fbff0 SHA-256: 6056b5697bd7377c3a0272c4e32748449ab49edeb92f9d2e79ff9d3ebb528bed
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 presence of an embedded URI pointing to 'pelibifir.ru' suggests an attempt to redirect the user to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely delivered as a spearphishing attachment.

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://pelibifir.ru/strik?utm_term=firex+120-538c+replacement PDF link annotation
    • https://noromilo.weebly.com/uploads/1/3/4/5/134587763/1343432.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476582/normal_5ff88f66bbd83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444623/normal_60678fbf21a46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458148/normal_6053be754ff50.pdfIn PDF document text
    • https://sexaximelukifa.weebly.com/uploads/1/3/1/0/131069869/ddf96b.pdfIn PDF document text
    • https://mekaxojukana.weebly.com/uploads/1/3/1/3/131379168/vusanaxunotila.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/solving_cubic_equation.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446789/normal_5febbf8fb786e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410443/normal_60453a2af2777.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392199/normal_5ff4b9dfc2043.pdfIn PDF document text
    • http://pokovata.scienceontheweb.net/uniform_building_by_laws.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427526/normal_5fe698bd99cd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375507/normal_5fc7ee1a77cfa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lepugip.epizy.com/vidas.pdfIn PDF document text
    • http://ropanosuge.rf.gd/anne_marie_song_friends_video.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/66058038485.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/paglu_2_bengali_movie_all_song.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_off0000d273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD273 5764 bytes
SHA-256: 08c2e9fbf56db9b4d7b8b18a0451609f9cb49603fc6f9bcf5d7515bae57d7e68
font_01_sfnt_off0000e615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE615 10636 bytes
SHA-256: 932b9630d3fb6dee22dbd5329ea28cb9f0cc7eb25f54b00d19c10fab52762051

Open this report in the interactive analyzer, or submit your own file for analysis.