Malicious PDF — malware analysis report

Static analysis result for SHA-256 396a40a44a425fe2…

MALICIOUS

PDF

35.6 KB Created: 2020-08-01 18:33:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66e4efe3b176e128ce0d593adbcd6cf6 SHA-1: 6ea52978d70681211755a5996146073a48c576e8 SHA-256: 396a40a44a425fe208ca07204d7e27cbb6629a010123bb33182b363a617f3d27
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 pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary intent is to redirect the user to a malicious site, likely for phishing or to download further malware.

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=what%2527+s+my+google+id
    • http://files.centralmasslawyers.net/uploads/1/3/0/8/130814288/a2555.pdf
    • http://files.ask-the-razz.com/uploads/1/3/1/8/131857338/fogidakozugeju_zinidubivibir_bemotaf_vagadojog.pdf
    • http://files.clevelanddance411.com/uploads/1/3/1/4/131408100/7704932.pdf
    • http://files.michaels-photography.net/uploads/1/3/1/8/131871569/2738659.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdf
    • https://cdn.shopify.com/s/files/1/0432/6332/8411/files/dajuvexufevivarupozemide.pdf
    • https://cdn.shopify.com/s/files/1/0429/4007/2092/files/tevawumut.pdf
    • https://cdn.shopify.com/s/files/1/0429/1503/7351/files/42831265349.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/82427923383.pdf
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/95816690617.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/c_new_thread.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/gevokozuma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/zirezedijixemewu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3815/4657/files/nujaguzekoja.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/nemib.pdf
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/18835019089.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_off00004e0f.bin
89c6417fee24f867f6784bdd9cee1fa4f0d385f9db0d7ab6478069d016d9e931
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0F 5292 bytes
font_01_sfnt_off00006005.bin
a6d5f8c608785699066da717a98c508228e3c3042d40cdb366b01e7f705bcf4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6005 9932 bytes