Malicious PDF — malware analysis report

Static analysis result for SHA-256 c18df7cf6af2add0…

MALICIOUS

PDF

40.6 KB Created: 2020-08-21 19:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b9863ccba77fdd3aeefba9bccbfbcc9 SHA-1: 60dad4ec69c4241e79b190d4a0a9d33e2b1afa2d SHA-256: c18df7cf6af2add0db41d126c0f43ba17516b2f461e337a96dd943d9c5f93c4e
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a download lure and the malicious URL. The presence of a 'download button' heuristic further supports the social engineering aspect. The primary malicious URL is https://ttraff.cc/pify?keyword=championship+manager+2002++completo+portugues, which likely leads to further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=championship+manager+2002++completo+portugues
    • http://files.m.spapelle.com/uploads/1/3/0/7/130738565/jowaruwarabil-sikujed-wajejaba.pdf
    • http://reroladi.mauiskydiving.info/uploads/1/3/1/8/131856380/lexuvaruv.pdf
    • http://bomawu.shannonbibby.com/uploads/1/3/2/8/132814930/64fef2e3.pdf
    • http://bomawu.shannonbibby.com/uploads/1/3/2/8
    • https://cdn.shopify.com/s/files/1/0437/4138/0762/files/zafigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/email_signature_template_examples.pdf
    • https://cdn.shopify.com/s/files/1/0447/3815/0549/files/destination_a2_vk.pdf
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/towomemutoruge.pdf
    • https://cdn.shopify.com/s/files/1/0434/4207/7846/files/lonuxasumedigibu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/48585917238.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/whatsapp_free_video_funny.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/search_books_arabic.pdf
    • https://cdn.shopify.com/s/files/1/0435/5689/6927/files/wepewa.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_off00005f83.bin
f44b4d3cb2ecb8ead7a887994e1f03c4d68b05bf54fcbe000b13ec7b3925fbb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F83 5528 bytes
font_01_sfnt_off00007228.bin
42e160b39b0f46b0deef2b96caf8fd77e46aa13a89ca007b16a6f7d9ec7d6c7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7228 10400 bytes

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