Malicious PDF — malware analysis report

Static analysis result for SHA-256 24bd283595def3f2…

MALICIOUS

PDF

75.3 KB Created: 2020-12-26 03:54:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4319008ec58d65e5588045576ad90588 SHA-1: 5529fd1edd36d02172291ea86d13eae227f85515 SHA-256: 24bd283595def3f2cdc5f86f0893d4b8c8e0335e278d548ae7176cae8f2ee138
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link and a high-confidence ML classification. The embedded URL 'https://ggtraff.ru/strik?utm_term=today+show+cast+2017' is identified as a known malicious redirector, indicating the document's primary purpose is to lure users to a harmful destination. While no scripts were explicitly extracted, the nature of the redirector suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/strik?utm_term=today+show+cast+2017
    • https://cdn-cms.f-static.net/uploads/4458838/normal_5fa2622569f87.pdf
    • https://cdn.sqhk.co/marixefe/Djgjirx/24680587233.pdf
    • https://cdn.sqhk.co/tirewugodus/jcQjcih/best_heroes_genshin_impact.pdf
    • https://cdn-cms.f-static.net/uploads/4417318/normal_5f95d604120a1.pdf
    • https://static.s123-cdn-static.com/uploads/4378619/normal_5fe28093745d9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6072b589-9d5c-48f2-8749-59ee9c098c68/bail_bonds_manhattan_ny.pdf
    • https://uploads.strikinglycdn.com/files/c4ca2d14-e538-4847-837b-1408d5c8c522/zibujonanulobisetibiwavuz.pdf
    • https://uploads.strikinglycdn.com/files/21febaae-83a3-46ae-9f6d-35bcbc97f008/69531713387.pdf
    • https://uploads.strikinglycdn.com/files/fccb32c9-c8ec-475d-aa70-40e56e92c8bd/54945506877.pdf
    • https://uploads.strikinglycdn.com/files/bde60487-366e-44cb-9391-e2c3caed18d1/bionic_spine_rimworld.pdf
    • https://uploads.strikinglycdn.com/files/501a3246-82d5-4ca3-a50b-86572085c7d2/9822290342.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3f3.bin
bb8fbdfdcb2dd38ce1d7cc7f8af0c13d49f60637a8703468b534839cceb33621
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3F3 5448 bytes
font_01_sfnt_off0000e6a3.bin
faea1857db8c3bff78673ecaa2154c3a799c7d895a4a49cde1457d34bc6511cc
pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A3 10764 bytes
font_02_sfnt_off00010ac5.bin
3a52ebe7351f79644c0b3767440307c8409882abbc762f33cd929b994127e6aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC5 16324 bytes