Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6b11c53d634028…

MALICIOUS

PDF

45.2 KB Created: 2020-07-27 09:18:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f470ed05981b45178564200450ecd98 SHA-1: a38fd16dbaf74d991089f10f092fd36b0d1dd39c SHA-256: 4b6b11c53d63402809a02068dcf7debc5658edc4af0114cc8c3edc593aa040aa
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with the primary heuristic identifying a link to a known malicious redirector at 'ttraff.ru'. This suggests the document is designed to direct users to malicious infrastructure. The presence of a link farm further supports the idea of a broad phishing or malware distribution campaign.

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=ar+drone+2.+0+elite+edition+manual
    • http://files.haventruck.com/uploads/1/3/0/7/130776343/rolurezum.pdf
    • http://files.cocon-interior.nl/uploads/1/3/2/6/132681916/f5d5a30.pdf
    • http://files.ciaranjohn.com/uploads/1/3/2/6/132681482/nefugutezakure.pdf
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/jaduka.pdf
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/80607127373.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rirolor.pdf
    • https://cdn.shopify.com/s/files/1/0433/2106/5640/files/33774128012.pdf
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/84213162211.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/webugarituvotebedozi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/79538827424.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/97114638897.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0164/2149/files/karefijimobusowubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0342/8515/files/fasusitixupitikufiviri.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/vorobowuvonajixaxorovix.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/17846996059.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/
    • https://cdn.shopify.com/s/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007506.bin
9d21efc561adb42202472e2ec260f4cfe1844ceb915d20d5f538aa83ff6aa95f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7506 4968 bytes
font_01_sfnt_off000085c8.bin
70d2d83b3122a31e0796784d4618482a336147b31e448259ba7698d09f6a2b73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85C8 9880 bytes

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