Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5d51b30658e3707…

MALICIOUS

PDF

72.5 KB Created: 2021-02-22 09:14:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 1689a60e14b3fa8b712ebc769db6c98c SHA-1: 784e008a367c16196f8aa63c0ae32d6d88240be1 SHA-256: e5d51b30658e3707175ff3fe65ef0b4dadc957ea57a91ac2249c9b4ab207ab68
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 0.9995

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://jottigo.ru/strik?utm_term=alfred%2527s+drum+method+book+1+dvd PDF link annotation
    • http://save50.pro/nemademuloloun8rj.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/9jyibWm/imo_friend_search_tool_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/pavoraxebute/hd1B7sV/n._o._v._a._legacy_2_apk.pdfIn PDF document text
    • http://extraterrestrials.space/firosevesepekskj.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/gjjcZjj/xinuxukat.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/ijipQig/lonutebavetemidubuji.pdfIn PDF document text
    • https://cdn.sqhk.co/vasinabew/T9YHUib/amazon_kindle_unlimited_free_3_months.pdfIn PDF document text
    • https://cdn.sqhk.co/texojijoraso/QtjfFc7/open_camera_roll_react_native.pdfIn PDF document text
    • http://razvivatel.blog/diana_death_news_reportrpnnb.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/G4jlhbh/tezenabonavomimesinuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bojivudotafaf.epizy.com/autograph_movie_songs_tamil.pdfIn PDF document text
    • http://getojigukas.epizy.com/22546913425.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB733 4756 bytes
SHA-256: 2a8d240f73245a4c25451d0f0035a3a710baedf044647aa6e4d451db0914a4cc
font_01_sfnt_off0000c79c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC79C 5276 bytes
SHA-256: b065b62a93d325b2461cd1150e40c5e714064b3ba804b410869c68529965e6b1
font_02_sfnt_off0000d97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97A 10820 bytes
SHA-256: f2745161a8d35df9226fbc05ca7f545aac6690c75a6bff15f93099179a61d2ac
font_03_sfnt_off0000feb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB9 16344 bytes
SHA-256: 57b8fec0a9025d0751ed2b2b9d6a8e1970a6385c1a21e2137f262ad527c4b8f4