Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd6f62ec45f9fe24…

MALICIOUS

PDF

36.2 KB Created: 2020-11-05 14:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 42e39273e07f6f11e753bbbc724f66fa SHA-1: d2d1f098a5d0cc2e9468cf4014b913fe7f2607ce SHA-256: cd6f62ec45f9fe246539a57a128b35e00c77e1ccd014985d5f6808c04596054c
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://ttraff.club/123?keyword=john+rich+earth+to+god+lyrics In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393483/normal_5f9036ae6ec71.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371265/normal_5f8cafded1b18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369306/normal_5f8a29715b868.pdfIn PDF document text
    • https://gumiworawogulaf.weebly.com/uploads/1/3/4/3/134356348/8e1f2aafc6.pdfIn PDF document text
    • https://xekixudag.weebly.com/uploads/1/3/4/3/134336078/8e2794314e39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368768/normal_5f8e0eea3bb6c.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/xewuj.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/fuzatolo-suvibesutisozuw-modipo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466140/normal_5fa304f36a39a.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://cdn.shopify.com/s/files/1/0431/7125/0333/files/51334562577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fab5a7e0-0ff8-4765-8cda-fef0606801a1/15755001081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/86037423103.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_off0000445b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445B 5080 bytes
SHA-256: 6d2bf25690d1b6483c14961e57d65fdd68919bb7f68382b67a3585febd33df59
font_01_sfnt_off00005588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5588 9528 bytes
SHA-256: 8ed605d6a7fa2f8dfc869a9ba6ff4aef4786583eefd0f6fe7647b2249f3eb249
font_02_sfnt_off0000763b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x763B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176