Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9fec7ddfce5013…

MALICIOUS

PDF

46.4 KB Created: 2020-08-04 23:24:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 496bd0013748b7f829f8dcc0fe4f988a SHA-1: daf34962269d870c3d7af7cbe1abdd00b71012cf SHA-256: fc9fec7ddfce50137cc459a75b3825c60f05d025349029c64cb97c7457179047
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, 'https://ttraff.ru/pify?keyword=project+risk+management+checklist+pdf', is identified as a malicious redirector. This suggests the document is designed to lure users to malicious infrastructure by masquerading as a useful checklist. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.ru/pify?keyword=project+risk+management+checklist+pdf
    • http://files.westdesmoineslawncare.com/uploads/1/3/1/3/131398406/a4617c0885ee6.pdf
    • http://files.philippecorriveau.com/uploads/1/3/0/7/130740625/2ba4a52d67.pdf
    • http://files.ginostrattoria.com/uploads/1/3/0/8/130814001/xelopuwudisofava.pdf
    • http://juwoko.mwmresearchgroup.org/uploads/1/3/1/4/131438405/9523730.pdf
    • http://files.capturedgravityphotography.com/uploads/1/3/0/9/130969588/4367745.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/reduliwigoro.pdf
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/titanusopezonezawimir.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/the_warded_man.pdf
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/80158809134.pdf
    • https://cdn.shopify.com/s/files/1/0428/2440/1063/files/bobijitumunigaxoju.pdf
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/1546777137.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9607/files/butefajafixaweti.pdf
    • https://cdn.shopify.com/s/files/1/0433/9974/1596/files/xorisowakugani.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/24441281018.pdf
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/mutomub.pdf
    • https://cdn.shopify.com/s/files/1/0434/1753/4629/files/napexibora.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/31491209209.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0576/files/add_modifiers_tinkers.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_off0000783b.bin
e7b89351517d3b4c4445f9658953b8842df448e60774a22810d1a3ee666bf88a
pdf-font-stream PDF embedded font (sfnt) at offset 0x783B 5708 bytes
font_01_sfnt_off00008b8d.bin
f3e6541ab7863f68b69f215f959ade6d51c4d2ce9550a0af4350a73f315b163d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B8D 9636 bytes