Malicious PDF — malware analysis report

Static analysis result for SHA-256 c346f3e3c4c14305…

MALICIOUS

PDF

70.3 KB Created: 2020-12-07 01:02:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2514f639dd68a7119142d39ac3ecbf3a SHA-1: 6b961c0140f208e0730346e1eca67685ba40aefc SHA-256: c346f3e3c4c1430558fb9a84fa1ccfe853a1dd787ac5787fff22a8e832c872fa
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/123?utm_term=pa+state+safety+inspection+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422373/normal_5fb53bec86252.pdfIn PDF document text
    • https://kagixopobexumel.weebly.com/uploads/1/3/4/6/134648921/407e852.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374953/normal_5f9d2187d7d10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377935/normal_5f9e79821d612.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/desenaz/nuzezepinobetomamikekusu.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/3ds_max_2014_material_library.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5888ba13a450bab13d611/t/5fcc82d80ab5d62febebb486/1607238362501/cnbc_futures_app.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/83907511458.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/49941126963.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/earn_to_die_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/wupiwupiwot/circle_theorems_gcse_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/chyawanprash_video_song_full_hd.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_off0000c9b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9B4 5048 bytes
SHA-256: ca51b85737030dc624d98cc8fdd3bfcfadcdc8444181f2244e4831663bfbfe79
font_01_sfnt_off0000dacf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACF 10292 bytes
SHA-256: 9312bf29b98255f4a1938ee474119a1992f2bd67023f88ff3146adb703bb7e28
font_02_sfnt_off0000fe0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE0A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e