Malicious PDF — malware analysis report

Static analysis result for SHA-256 d13d7af11df8f6d5…

MALICIOUS

PDF

48.0 KB Created: 2020-08-15 00:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a1b6d2c1723fec2eab9f283b74eee4d SHA-1: e65956440d3d41d00cd9001c7405167c98ee1e73 SHA-256: d13d7af11df8f6d5be541fe455fbf16c263e950c66834cfc8bb09d59f23de681
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=executive+summary+sample+for+marketing+report'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with 'https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdf' being the first identified. The document body, though partially corrupted, contains text suggesting it is an 'Executive summary sample for marketing report', likely a lure to encourage clicks on the malicious URL.

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=executive+summary+sample+for+marketing+report
    • http://files.trimtags.com/uploads/1/3/2/7/132710694/623812.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3917/files/93118860109.pdf
    • https://cdn.shopify.com/s/files/1/0436/2957/6352/files/dnd_3._5_books.pdf
    • https://cdn.shopify.com/s/files/1/0435/1374/1472/files/99138938681.pdf
    • https://cdn.shopify.com/s/files/1/0436/4389/5966/files/mujudis.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1281/files/82224915759.pdf
    • https://cdn.shopify.com/s/files/1/0434/5495/5672/files/7369710571.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/64230204085.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/clicker_heroes_hack_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/7828/7513/files/tifejomabijivanelogoma.pdf
    • https://cdn.shopify.com/s/files/1/0430/9667/0365/files/gawawaworukelasiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/389628068.pdf
    • https://cdn.shopify.com/s/files/1/0433/6762/8950/files/20358069151.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_off00007e50.bin
5faaae9105b02873a12e4fc14504bce3bda3908d037e7e2a9b90e47f34a5dcbf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E50 5584 bytes
font_01_sfnt_off00009155.bin
ebe927d9a84f5c40f2876e86ffe703e01ebabd6d714243f415254fbb365fd5ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x9155 9868 bytes