Malicious PDF — malware analysis report

Static analysis result for SHA-256 52a0ed27e639d811…

MALICIOUS

PDF

43.3 KB Created: 2020-08-26 08:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73808a468b6ef4bd57f316827c686c8d SHA-1: 2225876c88ef541eb81835e2c1a39451c53e0b56 SHA-256: 52a0ed27e639d811802d0466d069ec0eaaf2be03ede7736fb42c9d87e04a319e
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=%25C3%25A7emberde+yay+uzunlu%25C4%259Fu+sorular%25C4%25B1. The document body appears to be largely obfuscated or corrupted, but the presence of numerous links suggests a delivery mechanism for a phishing or scam campaign, potentially leveraging SEO techniques to distribute malicious content.

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=%25C3%25A7emberde+yay+uzunlu%25C4%259Fu+sorular%25C4%25B1
    • http://files.trinitydentalcentre.ca/uploads/1/3/2/6/132680813/9412074.pdf
    • http://files.rufiosrumblings.com/uploads/1/3/0/7/130738641/fanekadarub_tudofun.pdf
    • http://zukot.coachjacobson.com/uploads/1/3/1/1/131164066/xojiporitaliza_vivilefexo_regukedaxek.pdf
    • http://peberore.sunshinecoastcounselling.com/uploads/1/3/1/4/131437906/8918879.pdf
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/dnd_5e_arcane_archer.pdf
    • https://cdn.shopify.com/s/files/1/0433/3151/8622/files/wotaxiwukomex.pdf
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/16800488018.pdf
    • https://cdn.shopify.com/s/files/1/0462/5756/9946/files/sample_answers_writing_task_1_ielts.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6880/files/best_free_airplay_app_for_android_tv.pdf
    • https://cdn.shopify.com/s/files/1/0428/4026/0775/files/mojililominegenesunezoze.pdf
    • https://cdn.shopify.com/s/files/1/0430/1851/8681/files/5766930263.pdf
    • https://cdn.shopify.com/s/files/1/0432/5172/8546/files/jidovuti.pdf
    • https://cdn.shopify.com/s/files/1/0436/0772/0094/files/65382062213.pdf
    • https://cdn.shopify.com/s/files/1/0435/6420/4193/files/33046490374.pdf
    • https://cdn.shopify.com/s/files/1/0431/9015/7474/files/17153849223.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_off00005ca0.bin
e0fa2a0b56946fc996aa09ed9c78be2197a7b04482576945e47e8030c1de46ca
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA0 5616 bytes
font_01_sfnt_off00006f56.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F56 1800 bytes
font_02_sfnt_off000077e4.bin
1bb3f4d40ffe09ec77fff0dacafb558a0ceaf763e1a9958d01fe13b236cd1c46
pdf-font-stream PDF embedded font (sfnt) at offset 0x77E4 12540 bytes