Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dc060aeb71a34c1…

MALICIOUS

PDF

40.9 KB Created: 2020-08-18 19:06:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bad15d4deeb0407c7ecbc90ef09ed33a SHA-1: ef611578e60fcae119fe59de9d1f20170ea38aa2 SHA-256: 8dc060aeb71a34c10bc3d7e69f0889e2c76a86ba5bf1414220d62becba528db2
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Green tourism and heritage guide' and a URL that points to a malicious redirector. This suggests the document is a lure to redirect users to malicious content, likely for phishing or malware distribution.

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.
  • 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.
  • 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=green+tourism+and+heritage+guide
    • http://files.gretchenandresart.com/uploads/1/3/0/7/130775108/6575159.pdf
    • http://poxumuge.slyxiong.com/uploads/1/3/2/6/132681361/xewubixabewir.pdf
    • https://cdn.shopify.com/s/files/1/0448/7141/8018/files/aiag_fmea_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0435/0892/4568/files/weginurakilodudisago.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/bozifivefam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/95278427328.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/nurukamepasuke.pdf
    • https://cdn.shopify.com/s/files/1/0428/3626/3078/files/sofazuwunokoja.pdf
    • https://cdn.shopify.com/s/files/1/0437/5737/1546/files/wlmp_to_mp4_online.pdf
    • https://cdn.shopify.com/s/files/1/0432/1722/3847/files/84844456403.pdf
    • https://cdn.shopify.com/s/files/1/0434/4794/3330/files/applied_linguistics_branches.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/musijuwupopat.pdf
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/fofixukozuwejewim.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062c6.bin
1261e3841c266e4ed14343a01d6d1a685a50a8ee3059b36a1b8bb35b2ba36f46
pdf-font-stream PDF embedded font (sfnt) at offset 0x62C6 5236 bytes
font_01_sfnt_off00007465.bin
b40f00a5f0a063d9fef8601090200f5ff1a6aa158a1aca9472d7f3c832ab89c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7465 10120 bytes