Malicious PDF — malware analysis report

Static analysis result for SHA-256 e772721322af5435…

MALICIOUS

PDF

46.9 KB Created: 2020-10-30 05:47:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 69d272c4fb944d9e0b062d42d2dc1c48 SHA-1: 89d3246c5c70fc3d251b5fed8e868e4ce766558f SHA-256: e772721322af5435e7ef6e52fa40d0c5d04347700c45e4e2492091996f52f347
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.link, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The embedded URLs suggest the document is part of a campaign to lure users to malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the PDF's structure and embedded links are sufficient to infer a malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ttraff.link/123?keyword=fort+independence+fallout+3 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391642/normal_5f8f835391def.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401983/normal_5f9229f86f931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367278/normal_5f89557dd0c7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_5f89d00f9de5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5f972ee2328b2.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://uploads.strikinglycdn.com/files/b0f0cc65-1546-4807-aaf2-7f9a51286c36/tebozefogoxuxufuvuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc2bef40-f866-4cce-8f14-1e92b16675e9/zafopipabogewezipew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/223b13ae-eafe-4b30-a2ed-a5f74b8da0ec/assassins_creed_iv_black_flag_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87f10d75-d320-4b6e-bb77-05f8a2d3feab/27570304318.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_off00006c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C37 4972 bytes
SHA-256: 63702d61b03650f8fb34938c3c2a0100e45ab46a6089b5525eeb1758fb311128
font_01_sfnt_off00007d2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D2B 10524 bytes
SHA-256: bc571c31545c63f968dda04d1756e43f54ca8ba581cf94de4ab92abc4de129fb
font_02_sfnt_off0000a10f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA10F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f