Malicious PDF — malware analysis report

Static analysis result for SHA-256 c74b643f5ac8b084…

MALICIOUS

PDF

37.7 KB Created: 2020-08-21 11:49:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 634042a7c92f4faec6f59a612c92344c SHA-1: ca52dc7cacaffb361c03df7e5e52593d786831f1 SHA-256: c74b643f5ac8b084ebda0916d3ccde2cfdfe15e7ffddb14df7644b8a14a5506d
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to direct users to malicious redirector infrastructure. The primary malicious URL is https://ttraff.cc/pify?keyword=aashiqui+2+movie+dialogue+free, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains references to this malicious URL and numerous other benign-looking PDF links hosted on Shopify, suggesting a social engineering tactic to mask malicious activity. No scripts were extracted from this sample.

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=aashiqui+2+movie+dialogue+free
    • http://files.deustone.com/uploads/1/3/2/6/132680860/sebijomaxizixabeni.pdf
    • http://pobinu.theconsciouscosmetologist.com/uploads/1/3/2/7/132741194/tozuga-nidexuromodo-junalemesotafi-nuwifinaduneko.pdf
    • https://cdn.shopify.com/s/files/1/0452/9104/5026/files/protected_areas_in_africa.pdf
    • https://cdn.shopify.com/s/files/1/0435/9074/6271/files/mise_a_jour_android_10_samsung_a50.pdf
    • https://cdn.shopify.com/s/files/1/0440/4353/4486/files/pikopogunexubeli.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11783771814.pdf
    • https://cdn.shopify.com/s/files/1/0433/7369/1045/files/polarity_of_organic_solvents.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/wugigodox.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/collocation_words_list_for_ielts.pdf
    • https://cdn.shopify.com/s/files/1/0431/8792/9245/files/cap_39-_1.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38804475130.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2189/files/dugegizupopabex.pdf
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/pujaxifuvegamemo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8320/2711/files/baahubali_1_telugu_movie_mp4.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_off00005528.bin
6dcb4c4aeffe1f245136baad3147435058e6b1addd0d54eb454d70ebc266e9df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5528 5628 bytes
font_01_sfnt_off0000682b.bin
0b210db3dfad47bbdae1cca36d792778b12eeb4af06ef4e9f2f6707504b06902		 pdf-font-stream PDF embedded font (sfnt) at offset 0x682B 10064 bytes

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