Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab1ce4571db92fb…

MALICIOUS

PDF

40.8 KB Created: 2020-08-19 08:18:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b85a06103d7947c900444fc7d7c327fc SHA-1: df406ac41420b0e4d0af14e916508ee890c27e06 SHA-256: 2ab1ce4571db92fbd6eace94c8a32c75d315fd0d0702f26cfd24ec617fc76398
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=cpanel+update+awstats+manually', which is flagged as a malicious redirector. This suggests the document's primary purpose is to trick the user into visiting a malicious site, likely for credential harvesting or malware delivery. The presence of a large number of external links, many hosted on cdn.shopify.com, points to a link farm SEO tactic to improve search engine ranking for malicious content.

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=cpanel+update+awstats+manually
    • http://files.hollywoodmixstudios.com/uploads/1/3/0/7/130739895/8467522.pdf
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/kokiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/2025620075.pdf
    • https://cdn.shopify.com/s/files/1/0459/2707/1911/files/xiaomi_mi_9_se_update_android_10.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/arioso_cello.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/95531956092.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/exemple_cahier_des_charges_site_web.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/53510091512.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005453.bin
f333dc456eda854c3994302d7b7e27c90e0e8ba568c8746040c12b6077d263f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5453 4948 bytes
font_01_sfnt_off00006525.bin
45c8bc1d7d3b3eccc19d9a494e12f9f08fff21dac6a5b8e27c42c684b38d0d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6525 10420 bytes
font_02_sfnt_off000088c1.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88C1 4324 bytes

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