Malicious PDF — malware analysis report

Static analysis result for SHA-256 92246035e2ec975b…

MALICIOUS

PDF

37.4 KB Created: 2020-08-23 15:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ab0f2db316ad4422104200f43c2f5f6 SHA-1: 9e431d9744c25b3d64a9607528521a339b68351a SHA-256: 92246035e2ec975bb9170fc263e249376e3669e9ef74e2ce13e3e91cd3530484
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=template+ppt+2016+free', is designed to lure users into downloading a template, likely leading to further malicious content. The document body contains garbled text but includes the malicious URL and several benign-looking Shopify links, some of which are part of the link farm.

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/pify?keyword=template+ppt+2016+free
    • http://files.aulternatives.com/uploads/1/3/0/8/130814397/wuzirewesobamurome.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/lakiguguvosubuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/8560/2721/files/jemotaze.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/oona_chaplin_game_of_thrones_character.pdf
    • https://cdn.shopify.com/s/files/1/0431/6617/1296/files/fusesomamadugunafiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/tutosedaturijeluvoboxaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/sefetilabari.pdf
    • https://cdn.shopify.com/s/files/1/0433/9279/4773/files/aladdin_game_windows_xp.pdf
    • https://cdn.shopify.com/s/files/1/0429/5655/4394/files/20452672837.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35117459625.pdf
    • https://cdn.shopify.com/s/files/1/0432/6385/2712/files/35900838225.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_off000055c2.bin
88f9ab5628c1d96ef5d37ff55d17071211020d2762dcde8161ae5cfd424639f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55C2 5300 bytes
font_01_sfnt_off000067b5.bin
2c45d23e5af984f25fe38cf583d05a9baf125bed2cfe05f9bb4c5adeef41e5c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B5 9840 bytes

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