Malicious PDF — malware analysis report

Static analysis result for SHA-256 df27b296362b2f0a…

MALICIOUS

PDF

58.8 KB Created: 2020-08-02 10:52:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ef9a68a68737b1ea7153e6423b0cbf5 SHA-1: d262286b38a3a359731e72489ddf8044eb2facf0 SHA-256: df27b296362b2f0a5bb7346ee6d7a60f044068b75a0e4f1affda774721ede6a2
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The document body text, though partially corrupted, contains references to car models and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious links. The primary malicious indicator is the link to 'ttraff.cc', a known malicious redirector.

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.cc/pify?keyword=1985+chevy+s10
    • http://files.europeanmatchracetour.com/uploads/1/3/0/8/130874265/xugita-tamozavigaxuref.pdf
    • http://files.burchfieldhomestead.com/uploads/1/3/1/3/131398250/8b0b4826b2763.pdf
    • http://files.whomovedmychiaseeds.com/uploads/1/3/1/8/131871705/nibixezonod.pdf
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/kufunetunamumesajib.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/77823993742.pdf
    • https://cdn.shopify.com/s/files/1/0432/2007/4663/files/raxoradololesotagu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/7752192625.pdf
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/wafuvuxinubutifazivozo.pdf
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/fijogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/42087173718.pdf
    • https://cdn.shopify.com/s/files/1/0433/8375/0814/files/xibesuxaruxodonuzisopalo.pdf
    • https://cdn.shopify.com/s/files/1/0440/2610/1910/files/ruvebubusunevegiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/29732296996.pdf
    • https://cdn.shopify.com/s/files/1/0435/8252/1512/files/pafaxapamajalokagololepe.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_off00008823.bin
0e45b7c74e67267bb73e38f69befc2801d4041a784761b4931cf5e2b50d9a27a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8823 5284 bytes
font_01_sfnt_off00009a3d.bin
eafe3eadbc7c9791e798e02f34b0a91ab0c4008d03660833ee253907fffb64bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3D 15276 bytes
font_02_sfnt_off0000c9ec.bin
c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EC 16060 bytes

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