Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0db869efea05e64…

MALICIOUS

PDF

40.9 KB Created: 2020-09-22 03:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c9953e04585c3614f9193b58c7f02f0 SHA-1: 1e263d1bf5bc7e92967c3128e4310a3bcf124b1c SHA-256: e0db869efea05e64e4066a397741e013cb23a048d362c7e3cf0cf552025d8534
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as search engine results for a user manual. The primary link, 'https://ttraff.me/wix?keyword=user+manual+for+honeywell+thermostat', redirects to malicious infrastructure. This indicates a phishing or social engineering attack aiming to trick users into visiting a compromised or malicious site. No scripts were extracted, and the document body was heavily obfuscated, but the presence of numerous SEO-like PDF links strongly suggests a link-based distribution or redirection scheme.

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.me/wix?keyword=user+manual+for+honeywell+thermostat
    • http://files.oxbridgemak.com/uploads/1/3/2/3/132302951/3b0f6f9086bccd.pdf
    • http://delulaw.gloriaojularisule.com/uploads/1/3/2/3/132303127/0a7a56e99c8780.pdf
    • http://files.beingbryan.com/uploads/1/3/0/7/130776246/tusafifemiwojif-fuxikoged-zilowugijekipi-nixemig.pdf
    • http://files.loneforestwolfphotography.com/uploads/1/3/1/3/131384070/wosoz.pdf
    • http://mizex.theseaba.com/uploads/1/3/0/8/130874540/7448889.pdf
    • http://zasivire.miss-pj.com/uploads/1/3/2/7/132712615/wibixuxu_nulapi.pdf
    • http://kusibeb.killastylez.net/uploads/1/3/1/6/131637312/8516636.pdf
    • http://files.faulknerproducerservices.com/uploads/1/3/1/3/131381204/0146fe611d1.pdf
    • https://cdn.shopify.com/s/files/1/0434/1124/3164/files/avery_badge_template.pdf
    • https://cdn.shopify.com/s/files/1/0439/8609/2190/files/xeratoruw.pdf
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/lofewimakezikafuwavabo.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_off0000625c.bin
8de77f7fc96f73eed975eea2dc67085e1a981714411474347e3c1c5a23c96c4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x625C 5192 bytes
font_01_sfnt_off000073ee.bin
7dc27cb08586d5668c77122cd3d6da32d948ac6e546d4540e7650f51b0c68ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73EE 10376 bytes

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