Malicious PDF — malware analysis report

Static analysis result for SHA-256 9270069099f3c720…

MALICIOUS

PDF

37.9 KB Created: 2020-11-02 10:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e3427bb3c71f83da0d1e0826309b8cda SHA-1: d2e61760788109ccbee20576c45b51c00cb2f8af SHA-256: 9270069099f3c7202b0a60814198043305a0a0fd1292a75e3731b1c68b37277e
94 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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/strik?keyword=thinknoodles+minecraft+noodle+planet In PDF document text
    • https://cdn-cms.f-static.net/uploads/4418166/normal_5f973a5256c62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379618/normal_5f8bca0bc46d9.pdfIn PDF document text
    • https://zogerosolubelu.weebly.com/uploads/1/3/4/5/134576434/9532544.pdfIn PDF document text
    • https://nabolonoroxene.weebly.com/uploads/1/3/4/3/134373159/juxix-tejupedorev-fufaj.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/196f1a1a-dfb4-4afa-84a7-5ac75de28454/1448510385.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/wemanidewego.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/dr_gero_dragon_ball_z_kakarot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24f8bc51-6432-4583-8823-c21ffbc101b7/63058228817.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/43206917152.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe39a710-fd1d-4678-a2a8-14bddaa2d5da/23531046385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18603611-5c00-4c76-9cb9-211c81344c7e/chess_fundamentals_jose_raul_capabla.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84aca571-5caf-482e-b974-c4055f00e92e/jasipobuxipavonuju.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_off000049cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49CD 5196 bytes
SHA-256: b0c4a471714466331d91612f8e8182ff81b92da3aef79874307972f6570de3b1
font_01_sfnt_off00005b38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B38 9748 bytes
SHA-256: 3190896e3e86e82908ef287a2add102f0ff8ae25960ecc32a0da5e71e60e9bf6
font_02_sfnt_off00007cc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c