Malicious PDF — malware analysis report

Static analysis result for SHA-256 98df58d0cc7ca86f…

MALICIOUS

PDF

42.6 KB Created: 2020-09-01 21:29:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 619e34f3e4820b406d1872b0eb536b5a SHA-1: 5da0f23e9f9ed4a0c71a75fc6263a510574389ea SHA-256: 98df58d0cc7ca86f288961c0b7c36a14531c6e4866d6459b1f35b4a54a868471
140 Risk Score

Malware Insights

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

The PDF contains a lure related to 'defensive driving course test answers' and embeds a link that redirects to malicious infrastructure. This indicates a phishing or scam attempt designed to trick the user into visiting a compromised site. The presence of a link farm and a malicious redirector suggests an attempt to distribute further malicious content or lead users to fraudulent pages.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/pify?keyword=defensive+driving+course+test+answers+georgia
    • https://static.usrfiles.com/ugd/b8c837_1bb2aa7339834f3a8358bd9568f5b3e9.pdf
    • https://static.usrfiles.com/ugd/a43ec6_ea3fa205ddbf4cd7b4acb419d565e5d2.pdf
    • https://static.usrfiles.com/ugd/26938b_fde7883e938547f9ae4f2ceeb003a1e5.pdf
    • https://static.usrfiles.com/ugd/f4de5e_ef9764a471534787a48b54f986761789.pdf
    • https://static.usrfiles.com/ugd/09273f_077d54363b0b4a839250942232cf9b98.pdf
    • https://static.usrfiles.com/ugd/bb13a2_bf7cb8f04505484d89e511be1682d496.pdf
    • https://static.usrfiles.com/ugd/136d07_e92ea85a45fe4386a7828203610e969b.pdf
    • https://static.usrfiles.com/ugd/1d64af_7f779a14e9b445609dd131bdf9cbf265.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_42a8016d693149529617d432b7a5d418.pdf
    • https://cdn.shopify.com/s/files/1/0433/4593/6534/files/wuvajezeteg.pdf
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/9034428001.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/postal_exam_955_study_guide.pdf
    • https://cdn.shopify.com/s/files/1/0440/5959/0806/files/26494327243.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_off000067b9.bin
e426bfeac0959faaf29a1de9e4287bed04879c47c94c84b6cc248c889420603c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B9 5308 bytes
font_01_sfnt_off000079f7.bin
5970667517cea7e02472ad78af2ef5d75c6c563192e964518b02c572eaa5cfdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79F7 10440 bytes

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