Malicious PDF — malware analysis report

Static analysis result for SHA-256 24072695f641809e…

MALICIOUS

PDF

69.3 KB Created: 2020-08-30 11:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68282e9019f10599ed5f7739854cc89e SHA-1: 16dfbcfbbca50099807608cab60b7dbf73b64262 SHA-256: 24072695f641809e50520cb33af4b9fe7b527eed00df25e1ffa10d4952dbe53e
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one critical heuristic identifying a link to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a reference to 'stardew valley dialogue mods' and a URL that appears to be part of a link farm designed for SEO manipulation. This suggests a phishing or scam attempt to redirect 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/wix?keyword=stardew+valley+dialogue+mods
    • https://cdn.shopify.com/s/files/1/0428/2544/9628/files/pakolapabepigivuvumozidi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6544/1430/files/gijugumukamuwekanogole.pdf
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/arlette_farge_la_vida_fragil.pdf
    • https://static.usrfiles.com/ugd/ad2ade_26c34858378047a6afbc27b6ae7a3290.pdf
    • https://static.usrfiles.com/ugd/b65acf_c78b8b7467bf4d95aa8d08e95b962beb.pdf
    • https://static.usrfiles.com/ugd/48f461_4f6721acb28d40b98bc0562a7157e7ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab2ed23df8174c8a945b6e9f43d58aad.pdf
    • https://cdn.shopify.com/s/files/1/0431/7888/5280/files/xotara.pdf
    • https://cdn.shopify.com/s/files/1/0435/5850/2563/files/gaussian_elimination_with_partial_pivoting.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/zuritudofosumoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.pdf
    • https://static.usrfiles.com/ugd/1cfe37_fd62490acc9c42a4a3100044f6a8581a.pdf
    • https://static.usrfiles.com/ugd/1c8c6c_758512cb69e749da853d4ce875829148.pdf
    • https://static.usrfiles.com/ugd/0c4177_7ff6cf28258e4915815a059618bb51df.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/
    • https://cdn.shopify.com/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c33e.bin
8ac10ea223927986f0d3001afcdf1d1fe3c8c019c0daffaa492b3c381cbda440		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC33E 5504 bytes
font_01_sfnt_off0000d5f7.bin
6a83f6766f1ce64e95cfeb1ea9577112b2d04091e2400e3bf22102d431479c6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F7 15904 bytes

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