Malicious PDF — malware analysis report

Static analysis result for SHA-256 82b3bf2753d0bb4d…

MALICIOUS

PDF

40.4 KB Created: 2020-08-01 11:46:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d732a5e66a9257149e8c36c2d642a77f SHA-1: 2090b582883fbad25915a5104115f76f5a793333 SHA-256: 82b3bf2753d0bb4d951f69de8c1327cf2ed45eeb93f39d8c9ca512a2202cc49d
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a large number of external links, indicating a link farm designed to distribute malicious content. The presence of a 'download' button lure further supports this. The primary malicious URL identified is https://ttraff.cc/pify?keyword=psp+games+download, which likely serves as a gateway to further malicious sites or downloads.

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=psp+games+download
    • http://files.metahatem.com/uploads/1/3/2/6/132682685/wimodari_kikuni.pdf
    • http://files.shopatlacasa.org/uploads/1/3/1/4/131407734/73679de8.pdf
    • http://files.chennaishiayouth.com/uploads/1/3/1/8/131856743/revakixegubixeju.pdf
    • http://files.cattledogcoffeeroasters.com/uploads/1/3/0/8/130873737/7916011.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdf
    • https://cdn.shopify.com/s/files/1/0435/4624/7332/files/23213192991.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61259485886.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75609531209.pdf
    • https://cdn.shopify.com/s/files/1/0433/4718/1718/files/79720154677.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/49445315631.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0340/files/28318466973.pdf
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/people_need_the_lord_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0430/4892/7386/files/jowupufigewob.pdf
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/wexewutogixuxezataga.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_off000060b9.bin
0d877264f2521a30b7facae444db3c6b1b4d2a465cdbaf820737cc67ffa0624b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B9 5276 bytes
font_01_sfnt_off000072b1.bin
f6b881f935cf849b03e9dfb31afed0bc95bc19b1782e20ebec926ce18c4b3962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B1 10200 bytes

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