Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2271e8b4b6e9abb…

MALICIOUS

PDF

43.0 KB Created: 2020-08-21 23:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae66085b80d331660b44daba59f4814a SHA-1: 2e9c5ae73e6cf142c7ba31fa817d84fd4b9cd214 SHA-256: d2271e8b4b6e9abbbd2a788c627d44118eda29503af3e9c5758d1f88c95b49dd
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is likely used to redirect users to malicious content. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though partially corrupted, contains text related to 'Battle house movie link' and the malicious URL, suggesting a lure to entice clicks. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=battle+house+movie++link
    • http://files.lutiesplace.com/uploads/1/3/0/7/130776308/mezebo_jakafadokafe.pdf
    • http://files.ccjsermonstorage.org/uploads/1/3/1/0/131070230/rakilus.pdf
    • http://majuvo.anxietyalleviated.com/uploads/1/3/1/3/131398020/5629777.pdf
    • https://cdn.shopify.com/s/files/1/0462/1795/3433/files/bebomimatazijipavulidasoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3096/9511/files/sujizusemonofunesasapu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4320/0929/files/57611113447.pdf
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/xekegebil.pdf
    • https://cdn.shopify.com/s/files/1/0432/4887/7736/files/93136960316.pdf
    • https://cdn.shopify.com/s/files/1/0432/2764/4072/files/sitapurogoroni.pdf
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/sejubifapi.pdf
    • https://cdn.shopify.com/s/files/1/0454/0645/3928/files/nonoluvetixafow.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_off00005f5c.bin
92ea96915ca73e2d98c59eee1d45a871c62f0c671b62c57f722132bafbfe893f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5C 5000 bytes
font_01_sfnt_off0000703e.bin
7420db9ec41012b263dff8e0d039d2a895961a6b4c1647eabbcd20f441fad98a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x703E 1936 bytes
font_02_sfnt_off00007985.bin
1e96ed9c01d043555ca2cf612df322e9ca64ad758cf3de246f2775323bb28781		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7985 11160 bytes

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