Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4952f9f4857955…

MALICIOUS

PDF

37.0 KB Created: 2020-08-21 21:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4147958f19ef0a7439f868d69bd50b6c SHA-1: 9cd760108ec57c642e93c8feae8609b501ed2bb9 SHA-256: 3e4952f9f4857955b5b784b084fa1d83a7bee2b7e9a632ba43311e8de0de3de0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=active+directory+server+2008+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for the 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/pify?keyword=active+directory+server+2008+pdf
    • http://jakaxoro.fullwavemusic.com/uploads/1/3/1/4/131437502/2802688.pdf
    • http://files.bbvpublishing.com/uploads/1/3/1/8/131856569/xokaxejedamojeb.pdf
    • http://wenod.gatesandbridge.com/uploads/1/3/0/8/130874642/6723704.pdf
    • http://sugexez.openthedoorleadership.com/uploads/1/3/1/4/131453558/dadixexoxovore_zezax_zigitetob.pdf
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/can_bus_standard.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/export_html_to_angular.pdf
    • https://cdn.shopify.com/s/files/1/0434/4040/6684/files/jozovaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/9233/7059/files/wujovetebinovegaxonutogal.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/23493725146.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6551/files/posujur.pdf
    • https://cdn.shopify.com/s/files/1/0431/3654/9018/files/abcesso_dentrio.pdf
    • https://cdn.shopify.com/s/files/1/0432/2151/6448/files/business_model_generation_filetype.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/emmerson_business_english_handbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/2704/6301/files/13693591145.pdf
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/sexoletoxokosegimemode.pdf
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/gagupatiwexuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/bajigadarorik.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_off000051b0.bin
08903e5400ef50768348f960fa45c87eea124779ba4270e5241e1c6e4e646840
pdf-font-stream PDF embedded font (sfnt) at offset 0x51B0 5524 bytes
font_01_sfnt_off000064a0.bin
7f4a72d0b4a3679b721e2e54a98edf31fcfe50ae8d79dab4eb9b1b7580bb8b37
pdf-font-stream PDF embedded font (sfnt) at offset 0x64A0 10160 bytes