Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa893ce11c557803…

MALICIOUS

PDF

37.1 KB Created: 2020-08-22 15:25:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cc176a7a6449be779bb770b0549ff33 SHA-1: 79a7d6898f181d41ec5e46d6d5ccc5f45c910aee SHA-256: aa893ce11c5578030f8a54a0e8a1f1c0c3905a8403b1e9961034c327b081afb6
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. The primary malicious URL, 'https://ttraff.ru/pify?keyword=alienware+alpha+command+center++windows+10', is a known malicious redirector. The document body is heavily obfuscated and contains junk data, but the presence of the link farm and the malicious redirector strongly suggests an intent to lure users to malicious sites. 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.ru/pify?keyword=alienware+alpha+command+center++windows+10
    • http://wupobavi.nimu-mm.org/uploads/1/3/1/4/131409090/dac474fbfa46e2.pdf
    • http://files.wcnsplay2learn.org/uploads/1/3/1/4/131453924/jovunoseve.pdf
    • https://cdn.shopify.com/s/files/1/0428/8885/5718/files/38455016272.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4023/files/idioms_and_phrases_for_ielts_writing.pdf
    • https://cdn.shopify.com/s/files/1/0437/8663/3377/files/gonuvatemokimi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/fanafufuromebakulevepami.pdf
    • https://cdn.shopify.com/s/files/1/0466/2758/6213/files/baithungi_piya_bolero_song.pdf
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/canales_de_distribucion_internacionales.pdf
    • https://cdn.shopify.com/s/files/1/0431/1872/3229/files/giluri.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/futikuzazojexopuvenewipu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/vupevavofozuwizenew.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_off000050c2.bin
035e26ac8e27d8c72b6ff326f92579775ded283cee40d40fd1f016204e689610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50C2 5588 bytes
font_01_sfnt_off0000639f.bin
85da4949fbddea747fa39fa2a7de1b9d69f9a00be4510a029a0f92f275e13642		 pdf-font-stream PDF embedded font (sfnt) at offset 0x639F 10536 bytes

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