Malicious PDF — malware analysis report

Static analysis result for SHA-256 6929c766ea6b9e91…

MALICIOUS

PDF

45.5 KB Created: 2020-08-10 11:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ad04607fbc906ef32991d9a8a8f0e64 SHA-1: 896d6c92126fc1cfc3cadd537527d9e251e6374e SHA-256: 6929c766ea6b9e9105611ab8b53ce723b45282d4093597586432b3e74d452b24
154 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one pointing to a known malicious redirector. The document's content, though heavily obfuscated, appears to be a lure related to 'trade barriers in south africa pdf'. The presence of embedded URLs and the ML classifier's strong indication of maliciousness suggest this file is designed to redirect users to harmful sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.cc/pify?keyword=trade+barriers+in+south+africa+pdf
    • http://files.northchesterbaptist.com/uploads/1/3/1/3/131379999/basirevo.pdf
    • http://files.aes-music.org/uploads/1/3/1/6/131636651/7233185.pdf
    • http://rizona.thesekidshavetalent.com/uploads/1/3/1/3/131379578/garidol.pdf
    • http://files.themunrosofglenorrin.com/uploads/1/3/2/8/132814680/4466884.pdf
    • http://bejafowoz.radioeben-ezerinternationale.com/uploads/1/3/2/3/132302782/litox-powida.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0438/4312/5405/files/zifagemagenoxap.pdf
    • https://cdn.shopify.com/s/files/1/0435/6328/6691/files/viwuwezizov.pdf
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/zimid.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dewefezagabujam.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/33476332708.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/bizexe.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/2099615017.pdf
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/nimasabeka.pdf
    • https://cdn.shopify.com/s/files/1/0430/5397/3657/files/working_principle_of_two_stroke_engine.pdf
    • https://cdn.shopify.com/s/files/1/0433/9964/3286/files/tigufos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.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_off000074a1.bin
a25b5d145500329e7770f55a7e37edb70f65376e057ed6927f06be4bcf38b1de
pdf-font-stream PDF embedded font (sfnt) at offset 0x74A1 5300 bytes
font_01_sfnt_off00008699.bin
fc14a2998527373555293ff95c5be2f2cdcb3ca039e837901aa3d2ac1cd3d126
pdf-font-stream PDF embedded font (sfnt) at offset 0x8699 10048 bytes