Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d7e54d2301094ec…

MALICIOUS

PDF

76.6 KB Created: 2021-03-02 19:36:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 24d313b65ab40e2c181a4601d22660c2 SHA-1: 3089c83eccc4c9885bff876060a80f00a38c2716 SHA-256: 5d7e54d2301094ecd27246e7449526c38e4a88702cc2ecae22c20bd8349cbef1
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/strik?utm_term=how+to+change+samsung+tv+remote+batteries PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427300/normal_5fe9cb80d692d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495393/normal_5ff2d315aac1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_5fccdb75998c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409814/normal_602aa19426861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422378/normal_60147a3ade6da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474218/normal_6014ca287c5f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486199/normal_601e12f123d96.pdfIn PDF document text
    • http://bazunujovi.scienceontheweb.net/how_government_encourage_entrepreneurship.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383137/normal_6021556b23186.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/juduk/aashiqui_2_2013_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/dorulusof/ceqa_guidelines_15378.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/6897782713.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/33979537266.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_off0000e2f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2F2 5316 bytes
SHA-256: c37567e440eb595ce97568eb4fbea88f5a444e545462fc3d3c0ae219361f85f3
font_01_sfnt_off0000f4e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E8 10104 bytes
SHA-256: a50a3f24da6b2ce8bb1fd536aa86f21c86eecc08531b01c23074108dfc7b31fe
font_02_sfnt_off0001177f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1177F 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71