Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff7a382b6a1ba000…

MALICIOUS

PDF

37.5 KB Created: 2020-08-31 08:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 720132747c632c9dc2de92f9ad2d750d SHA-1: 645fa10afc1b0c38433157341b75db037501e8a2 SHA-256: ff7a382b6a1ba000802b9f13db10f62d649f1679b11e53d85180429fec5d8311
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=tif+dosyas%25C4%25B1n%25C4%25B1+pdf+ye+%25C3%25A7evirme+program'. The document body, though heavily corrupted, appears to contain text related to file conversion and the malicious URL. The presence of a link farm heuristic further suggests an attempt to distribute malicious content. 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.com/wix?keyword=tif+dosyas%25C4%25B1n%25C4%25B1+pdf+ye+%25C3%25A7evirme+program
    • https://static.usrfiles.com/ugd/d902bb_7571d44f3d714f4c897f848c5651203d.pdf
    • https://static.usrfiles.com/ugd/f80014_3e75cb5046314efe853d1f089135b714.pdf
    • https://static.usrfiles.com/ugd/1decf9_1910b014c90841f2a0bf9ff72b35c62b.pdf
    • https://cdn.shopify.com/s/files/1/0459/1635/6757/files/nevulenepubegagirenes.pdf
    • https://cdn.shopify.com/s/files/1/0433/2814/3510/files/4941094688.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5744/files/basalt_slate_formica_countertops.pdf
    • https://cdn.shopify.com/s/files/1/0433/0340/3678/files/xiwolodoxa.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/50359107031.pdf
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/aflatoxin_in_maize.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/flyff_leveling_guide_acrobat.pdf
    • https://cdn.shopify.com/s/files/1/0431/2426/1026/files/nubufufagobezilulibemabe.pdf
    • https://cdn.shopify.com/s/files/1/0461/6585/2312/files/fb_video_er_for_pc.pdf
    • https://static.usrfiles.com/ugd/55cc32_8884c1d1d804430485e999a9acc73975.pdf
    • https://static.usrfiles.com/ugd/b8c837_993db186f751429cb6ebaa06b521f5f5.pdf
    • https://static.usrfiles.com/ugd/b8c837_14ddebc2a0234e2fa9c7f69742e845d5.pdf
    • https://static.usrfiles.com/ugd/4f270c_c0c7a985e56c4ae68d8ac6f22fa438b3.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_off00005077.bin
643a22358173c65385d64a2545cdcba061795d50fe15d5d80700c7f0a18786c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5077 5656 bytes
font_01_sfnt_off000063b5.bin
5077430218a00396292eb48343296cb1c5e362513c468743bf286ad8a2d74707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B5 10932 bytes

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