Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c4cfc2d29f867d…

MALICIOUS

PDF

51.1 KB Created: 2020-08-23 06:29:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d4dae12b9a7b512026c41278f4128fe SHA-1: 258c17b9d24543b0516e5cac75c4f16129815979 SHA-256: 92c4cfc2d29f867d5639a231ffa615209cd34c4da06488c2aea088512068f0cf
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=the+dark+gate+settlers+online+guide'. The document body, though partially corrupted, contains text related to an online game guide and the redirector URL. This suggests a social engineering attack aiming to direct users to malicious content. No scripts were extracted, limiting the analysis of further execution chains.

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.cc/pify?keyword=the+dark+gate+settlers+online+guide
    • http://files.jenniferkrollfineart.com/uploads/1/3/0/8/130874379/5133432.pdf
    • http://files.pranaya.org/uploads/1/3/0/8/130874162/nivazu.pdf
    • http://files.gracewinchester.com/uploads/1/3/2/6/132695620/winikovoxux_xatebixodifiga_jutuzoloxuzejo.pdf
    • http://files.sarahleavittlpc.com/uploads/1/3/1/6/131606953/827a0601ab.pdf
    • https://cdn.shopify.com/s/files/1/0433/8545/4750/files/13053145144.pdf
    • https://cdn.shopify.com/s/files/1/0438/3549/0466/files/40470248053.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6561/files/24700450609.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zumimulapowekulusevenire.pdf
    • https://cdn.shopify.com/s/files/1/0434/7750/0056/files/xawuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/mozafogipez.pdf
    • https://cdn.shopify.com/s/files/1/0438/2759/3376/files/judaxetilisaduri.pdf
    • https://cdn.shopify.com/s/files/1/0433/7916/3285/files/pumisuvuzexuzizuzog.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/davop.pdf
    • https://cdn.shopify.com/s/files/1/0436/9252/3675/files/alienware_area_51m_specs.pdf
    • https://cdn.shopify.com/s/files/1/0431/4673/9866/files/dajujujabajatabupafu.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_off00007e36.bin
96c34b312cdfa6a542724e79eb441d491197f70c61018c2141672e5d45ac2f85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E36 5100 bytes
font_01_sfnt_off00008f89.bin
3ac4cdee658a9c4c6d74c5b2d8cc8c17b0deb4e94155bb83fccaf7e7a83b60c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F89 15584 bytes

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