Malicious PDF — malware analysis report

Static analysis result for SHA-256 067777487620d107…

MALICIOUS

PDF

49.6 KB Created: 2020-10-29 21:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: da56ecda93e739b35a239740345cf8bf SHA-1: 5e4ade06f5a17ee712244b850e08e73a4fbf22d8 SHA-256: 067777487620d1074ad4fa17d7fa6e5bf8f14bb765ae57186e474bb99c4b7c09
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, https://gettraff.ru/123?keyword=black+and+decker+electric+edger+trimmer, is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing or malware delivery 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://gettraff.ru/123?keyword=black+and+decker+electric+edger+trimmer
    • https://xemivigezeb.weebly.com/uploads/1/3/4/4/134481563/279711.pdf
    • https://luleloneluso.weebly.com/uploads/1/3/4/4/134450102/vemuvom.pdf
    • https://cdn-cms.f-static.net/uploads/4372967/normal_5f99e5a15ea40.pdf
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/timafu-wevaxanarewo.pdf
    • https://cdn-cms.f-static.net/uploads/4407576/normal_5f979c7942c33.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0494/7542/0327/files/juravekawu.pdf
    • https://cdn.shopify.com/s/files/1/0499/2650/4616/files/74316721696.pdf
    • https://s3.amazonaws.com/zuwimadaneb/45507875217.pdf
    • https://s3.amazonaws.com/mijedusovineti/curso_de_frances_em_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0496/6403/2925/files/house_lighting_design.pdf
    • https://s3.amazonaws.com/felasorarabipis/pumped_up_kicks_tab.pdf
    • https://cdn.shopify.com/s/files/1/0503/1270/8293/files/sevewunamobesotasobed.pdf
    • https://s3.amazonaws.com/jotizifime/hernia_inguinalis_lateralis_adalah.pdf
    • https://s3.amazonaws.com/fikuvine/princeton_review_sat_chemistry_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000082a0.bin
67fa51f31f4db4df6aa60e761bc7e02731f40f818da3a0e13fa968afac774254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82A0 5196 bytes
font_01_sfnt_off00009433.bin
bcd707b32ead78f4e3412953677be88cd8a4980f19211b8ac523bd1fd4707c4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9433 10820 bytes

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