Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d19acc6c3922a8c…

MALICIOUS

PDF

45.7 KB Created: 2020-11-02 23:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e8c0911b4c5c5158e0d8478db644f90d SHA-1: 12e33647151d7ff4ee9c3b7069b46a8cac579797 SHA-256: 7d19acc6c3922a8c0b8f9d33854e5d548acac22cb5f6f8b9e9cb5ae0b18fabca
142 Risk Score

Malware Insights

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

The PDF contains a link to known malicious redirector infrastructure, disguised as a manual download. The presence of a visual download button and password archive lure heuristics further indicate a malicious workflow. The ML classifier also strongly flagged this PDF as malicious. The embedded URLs suggest the document is intended to redirect users to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/123?keyword=2017+toyota+highlander+hybrid+manual
    • https://cdn-cms.f-static.net/uploads/4366664/normal_5f8748949a345.pdf
    • https://cdn-cms.f-static.net/uploads/4386363/normal_5f8f8c8cddf6e.pdf
    • https://cdn-cms.f-static.net/uploads/4447084/normal_5f9fc34ec3e4b.pdf
    • https://cdn-cms.f-static.net/uploads/4366961/normal_5f8b45eadae53.pdf
    • https://cdn-cms.f-static.net/uploads/4382197/normal_5f8fa8270d5ff.pdf
    • https://cdn-cms.f-static.net/uploads/4379221/normal_5f9cf6bda4d1b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tiluwisulepam/vozavisiwevat.pdf
    • https://s3.amazonaws.com/lovetijif/58413083489.pdf
    • https://s3.amazonaws.com/belapawerezuju/minecraft_words_skribbl.pdf
    • https://s3.amazonaws.com/pazifetanegapu/zosokifuwubeviwexupig.pdf
    • https://s3.amazonaws.com/nezanurugega/6506406004.pdf
    • https://cdn.shopify.com/s/files/1/0502/2148/2156/files/photoshop_curve_text.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006978.bin
18ba8baea3ddcf74e53c56cf52bedbc6c909538643fc8e860aac9dd480faa6af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6978 5616 bytes
font_01_sfnt_off00007c6d.bin
32a6c9cf4067d7fa5621a49dc8d8d8972c3f279f3546515ffc20f8c84f99a136		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 1828 bytes
font_02_sfnt_off00008566.bin
6427f37267bf8723ad854469dd10421b8cdcedad40c0ea4ad3060ccf2d9c84af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8566 11024 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.