Malicious PDF — malware analysis report

Static analysis result for SHA-256 dadaef68a55006bb…

MALICIOUS

PDF

41.1 KB Created: 2020-08-19 21:08:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67dbe5c028ec3f4b5624fa0e199aa4a9 SHA-1: 7edc945055fbf559f9048e1f91d616325b859ef0 SHA-256: dadaef68a55006bb21b87e6a6b577b204b557e1f508d47e424ab41c1f26b3e8d
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, which is further supported by the presence of numerous external PDF links, many hosted on Shopify. The document body, though partially corrupted, contains text related to 'interior designing' and a URL pointing to a redirector. This suggests a social engineering lure to direct users to malicious content.

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=information+about+interior+designing
    • http://files.coltonweiss.com/uploads/1/3/0/8/130874254/timuvarak-vukag-rixil.pdf
    • http://files.ctcnevada.net/uploads/1/3/1/6/131607565/malaz_dinetof.pdf
    • http://lamelotiv.vriendenoutdoor.com/uploads/1/3/0/7/130739664/wetowufosimutaral.pdf
    • https://cdn.shopify.com/s/files/1/0429/0582/9532/files/xomovepasekaguwuda.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/kujilizipo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/finavelonitew.pdf
    • https://cdn.shopify.com/s/files/1/0432/5471/0427/files/54341321224.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/12330337623.pdf
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/xopok.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/lotoxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/78954241962.pdf
    • https://cdn.shopify.com/s/files/1/0447/9336/4637/files/8514440741.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1851/files/68531830490.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6015/files/florida_workers_compensation_exemption_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/kowegufuwejatu.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_off000062ea.bin
74ee2508ce1261c024e5159fbf2ba4172c84bfaa2a06b98765b24fdf363afea2
pdf-font-stream PDF embedded font (sfnt) at offset 0x62EA 5272 bytes
font_01_sfnt_off000074b2.bin
32e61030160078d81f78c6c6548286fa3c7ad1ef90e71fd19372b885d10836f9
pdf-font-stream PDF embedded font (sfnt) at offset 0x74B2 10196 bytes