Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e8944420dc42d5…

MALICIOUS

PDF

114.8 KB Created: 2020-12-21 07:43:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c2130c42deb1d0a6ed2de276f18689d2 SHA-1: 981eae18d8a06d138fd46f0ca42c0a9eb4db4dff SHA-256: d2e8944420dc42d5949b2745d641d1b3956e5a20c66857b975688d3b80d24e05
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 0.9996

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://trafffi.ru/strik?utm_term=invasion+of+privacy+meaning+in+psychology PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383792/normal_5f8d49eacae6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5fb4b3c751eaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zijivevip/freeland_but_is_it_art.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/how_to_unblock_any_number_in_android.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2814bab79f442f233bc55/t/5fc4a5b861e25426e1cb989c/1606723001865/sonic_ice_cream_nutrition.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/rojerewonoledilenevome.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64b40bda9c57a97e2ea2d/t/5fcf1bb769d6d06d553985ed/1607408567513/insta_story_maker_quick_photo_editor_mac.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e2ed17e7202640ea1bf0/t/5fc137dcf8cdb769c60faa66/1606498269008/35905471663.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26d5ab4b-f0a9-4d4b-ac21-32af2aab9731/pescador_de_hombres_song.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcabe2a35cfe5f3c796ebc/t/5fdccee09e2e705e3d9c480d/1608306402031/51791895771.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/nigewitus.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_off00018177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18177 5528 bytes
SHA-256: 7fb3cf35f539e53734bfd92ed1bc26eafd995aed3e0d6bd29e530c5fdd7bf014
font_01_sfnt_off0001942f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1942F 12904 bytes
SHA-256: 3a31793f43d69398ec586db70da19c63856b590ff5899048674577c67c378af8