Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f692bb0f4175ea3…

MALICIOUS

PDF

91.8 KB Created: 2021-01-16 19:30:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 9ae04c907261adc20a3e768cbe27a858 SHA-1: 84abd557d254f2cac0c4cac6bf693df44201a19b SHA-256: 4f692bb0f4175ea36cc6014c8bf3ccb05a005d50f4888a0bcf8bbca6c65fc301
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'traffset.ru', which is likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the presence of embedded URIs and the nature of the ClamAV detection suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://traffset.ru/123?utm_term=black+butler+saison+1+episode+8+vf+mangamania PDF link annotation
    • https://cdn.sqhk.co/rapavuse/gcJgjhi/rofubiwofo.pdfIn PDF document text
    • https://cdn.sqhk.co/bitizulokiva/tlf4hjf/browser_mining_free_bitcoin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475565/normal_5fea1376a4d47.pdfIn PDF document text
    • https://site-1179882.mozfiles.com/files/1179882/63260300972.pdfIn PDF document text
    • https://cdn.sqhk.co/mawejoxejobe/YuO6Wvl/mobile_data_turning_itself_off_iphone.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/remeranexe/80897761614.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/fuxodabin.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/wobisadaket.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/35900107491.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/48107298823.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/14454768693.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEF 8340 bytes
SHA-256: 6d9e7b5b7d84f32e54b86df906f6479569e2a7f6cbdd6ced72e7b769d093a05b
font_01_sfnt_off000117ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117CA 5916 bytes
SHA-256: a252d70c5d7e9a7ee0386336a6364200ceaaad7d4420769a833c3d27af3ed6c3
font_02_sfnt_off00012bdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BDD 12224 bytes
SHA-256: b59ede9f5f809789ba957db6e2f644258590285b13e5e13b86f6c180ad729206
font_03_sfnt_off000153b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153B3 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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