Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7796983d4a02666…

MALICIOUS

PDF

34.5 KB Created: 2020-11-04 10:11:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 103566ea10cb5e560143e90e49f8cea5 SHA-1: 8041c91b1b504a7ecf12b8438cba340a0debe385 SHA-256: d7796983d4a02666d9dec6692f983357dbe08e4153de703f8d47fe9f7f8ea276
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to known malicious redirector infrastructure. The embedded URL `https://ggtraff.ru/wb?keyword=lakewood%20rangers%20football%20score` is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious redirector strongly suggests this document is part of a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.

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://ggtraff.ru/wb?keyword=lakewood%20rangers%20football%20score In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374540/normal_5f89a8bde2b65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403537/normal_5f937f4eb06c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380682/normal_5f9e1dc5b4a69.pdfIn PDF document text
    • https://watinadapazibe.weebly.com/uploads/1/3/4/4/134492378/motigete.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373517/normal_5f91afb13707a.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/jozetej/61562300476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd7554d8-892e-469b-ace9-d2c8ae6ae2fc/89615935018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6573fcd-3900-425b-b80b-4641907decae/zuverijekomoderi.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/nsw_maths_syllabus_stage_1.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/zexapaboworijutanipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11e5e8c7-8166-4c5e-a9a6-b80767c27b4e/bourbaki_algebra.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_off000047bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47BD 5424 bytes
SHA-256: ecab3ad94b56ee6134d2b0c5daa0dfd93ef9b8281715e45ba748fece82ac8819
font_01_sfnt_off00005a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5F 10228 bytes
SHA-256: ac53f4238d7269b6a267eee10dd71243c9a0d7ecb79f66313dad6bb91577e04d