Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a0348341ead46bb…

MALICIOUS

PDF

41.1 KB Created: 2020-09-01 12:09:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2f6de4f7d246c00c05bf3cd57ef620b7 SHA-1: bbb19e3bd24287e262ee566d30242332e293e782 SHA-256: 7a0348341ead46bbc768c0eef53cfe4ce1ac3859b32bd786e4b63f33748c30ed
130 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body and heuristics indicate a lure related to 'free printable invoice template australia', suggesting a phishing or scam attempt. The presence of a malicious redirector link points to an attempt to lead the user to a harmful site.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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.ru/wix?keyword=free+printable+invoice+template+australia
    • https://cdn.shopify.com/s/files/1/0432/9547/3822/files/zonilosawimafedovosila.pdf
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/sunojupilelirajada.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/dadapukis.pdf
    • https://cdn.shopify.com/s/files/1/0431/0931/8813/files/minor_guitar_scale_tabs.pdf
    • https://static.usrfiles.com/ugd/3de8a6_0b7ed39724e445528f6dde4468c072a1.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_13bc75227e414e599d4c5e292db0971e.pdf
    • https://static.usrfiles.com/ugd/ce77c6_42277dc60b9943eb9bbe77907f7fd5cd.pdf
    • https://static.usrfiles.com/ugd/d1d005_79081c2d078146d39136123ceaa2d206.pdf
    • https://static.usrfiles.com/ugd/4d6844_a768173b7640406295d78653a798d29d.pdf
    • https://static.usrfiles.com/ugd/6846fe_8f20130e76c149ffac026fa5f26a9330.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_off0000636a.bin
f9a25ce1924e142f2a56d6b1362274108e79eebc6a015d8775cf2d7f59110502		 pdf-font-stream PDF embedded font (sfnt) at offset 0x636A 5232 bytes
font_01_sfnt_off00007528.bin
fd7921a3ab690c86eea3deeb2738d2e66b97604e5edcaf85c4483c8eea483779		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7528 10176 bytes

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