Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7436111969005a…

MALICIOUS

PDF

32.6 KB Created: 2020-08-01 14:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6540032596141c627e248710484d2713 SHA-1: 08eca7d1479623eb2c1e79e859196e2cca3d6eef SHA-256: 7e7436111969005a53958bbfeb3b6705f0919c8a420dcc7239c815ea25015276
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, disguised as a manual, redirects through ttraff.cc, which is known malicious infrastructure. This suggests a phishing or social engineering attack aimed at directing 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.cc/pify?keyword=hunter+xc+manual+pdf
    • http://files.sig10-cleaning-decontamination.net/uploads/1/3/1/6/131606092/xebonitibivawo_kubaxefupat.pdf
    • http://files.kkstechtips.com/uploads/1/3/2/6/132683484/lodusipawuneva-rotafivuwexil-mekopegagopumak.pdf
    • http://files.usawildcats.com/uploads/1/3/2/6/132695582/b517f26.pdf
    • http://files.cascadebga.org/uploads/1/3/2/6/132682076/1049473.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7253/files/niluzopu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/wobukuxijatuvupoxu.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/superior_drummer_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0427/4293/9814/files/23258472103.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/gerulojagufudum.pdf
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/32641321473.pdf
    • https://cdn.shopify.com/s/files/1/0433/7808/1955/files/rs3_family_crest.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/xumisezo.pdf
    • https://cdn.shopify.com/s/files/1/0436/2564/4192/files/wedituvugifi.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/nosir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2097/files/13593074652.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_off00004494.bin
b26bb0ba58e08f55e3cf2a1e3fdc00dfb14d8b6c332e6744d1ba2d1d1f10d750		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4494 5152 bytes
font_01_sfnt_off00005609.bin
ca8798259255914109a6e6d4d2da59b36f1c6e5f9e2349cda598861ba91b094e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5609 9404 bytes

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