Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb796f65708e5279…

MALICIOUS

PDF

69.5 KB Created: 2020-12-01 06:36:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5299de8c1c1f43a67e1bad7c70eb48b3 SHA-1: b7cab518427ca4282d98877dce0a267d86bb22ed SHA-256: fb796f65708e52792e37382deb6bcf465c460134e76ba176aaaaeb3b27b81ca4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://trafftec.ru/strik?utm_term=mercedes+benz+service+manuals+free PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcf122ab-a091-4d4c-b16f-d8a3c9bed9fd/66976276790.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a3a3e40-0252-4222-82e2-95088cbae38c/70156896012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4778b7dc-1dd7-4ea1-9450-104cb39e2d23/sapimodamabumapud.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/fufigonusefifekele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d6057ab-1959-4d47-88cb-d14b91de620e/buxonobakizefef.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/nawilofekafum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/807c1921-7bbd-4d9b-8828-c5e627a067d2/17982112491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f199f9fc-a340-4c88-9367-428c0b2dda33/prepa_en_linea_modulos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1594c46b-1afa-4304-8f87-a81ddc02b625/nuxowujejezuwopitudi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2141c675-aa06-4e57-b066-6b5ce9d75680/winavotifoneli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e4c8367-fe29-4919-a713-1880f44136bd/80254354843.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab147384-1a35-4aa8-82df-0e9a156c1183/61205467924.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37bc5a6-c07c-4974-97a2-abff802cad9e/nba_2k13_crack_fix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f10ea37-f683-45bc-a4b9-74995209f88b/garth_brooks_phoenix.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_off0000d1e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E3 5420 bytes
SHA-256: 5717265254d33bdb03d36e3cffe9eefb5d226481b92ebfb9c51e04d569d593ed
font_01_sfnt_off0000e451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE451 11124 bytes
SHA-256: f61de4b555040c229fca7f7099d02c69cd47a589a05cc637013c9cb3bbab72d3

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