Malicious PDF — malware analysis report

Static analysis result for SHA-256 f654c9221fc0d547…

MALICIOUS

PDF

67.0 KB Created: 2020-11-10 13:28:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 88671726307a2e6e76c5c84d4d85cd59 SHA-1: 2aa7c609dcf8a0ee81be02d92010d480fe75a1f0 SHA-256: f654c9221fc0d547b3bb3ac8840e3169d9be5fc9228090e178d5972507c68cc5
96 Risk Score

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 0.9998

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://traffine.ru/strik?keyword=whirlpool+quiet+partner+iii+dba PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480590/normal_5faa43fa1e20e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365580/normal_5f872f6a8edee.pdfIn PDF document text
    • https://kunizemofowirux.weebly.com/uploads/1/3/4/3/134311671/5e68c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445341/normal_5fa724eec5ae2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380543/normal_5f8d2e94eea40.pdfIn PDF document text
    • https://faworufobideped.weebly.com/uploads/1/3/2/6/132682851/f1973d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393508/normal_5f9ead58d73ad.pdfIn PDF document text
    • https://rutizinudepedo.weebly.com/uploads/1/3/4/4/134483735/8b691c27dad042b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444351/normal_5fa9109426847.pdfIn PDF document text
    • https://fipuvulozubonoj.weebly.com/uploads/1/3/4/3/134313175/94685b.pdfIn PDF document text
    • https://porimejonawi.weebly.com/uploads/1/3/4/3/134368737/tibekivodezuwek.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/votubukaxogilix/labajolubovas.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/1649680280.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_off0000bba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA2 5028 bytes
SHA-256: 9a7a8eb656a73db1aaad7b405458bf411b76ebfc1526cc924e67f1a6c51de283
font_01_sfnt_off0000ccad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAD 10740 bytes
SHA-256: 759653844fbc16109274faa393a0d1b012ddfcc46785f3c3297a19f4c6c469e1
font_02_sfnt_off0000f11a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11A 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378