Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f11deacbeda74e…

MALICIOUS

PDF

62.8 KB Created: 2020-09-08 02:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0186d0e40439eec8f049a504b0e51717 SHA-1: e1bd481eea28690b8c677b458217c94e24084f08 SHA-256: f0f11deacbeda74e0a5dad7be53b2e2914c37b8d1ccad84ef8293e2d74642eb4
150 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and heuristics indicate it functions as a link farm. A critical heuristic identified a link to a known malicious redirector, which uses game-related keywords in its URL. This suggests the document is designed to lure users to malicious sites, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.club/wix?keyword=crash+bandicoot+twinsanity+ps2
    • https://cdn.shopify.com/s/files/1/0431/6459/8434/files/sulud.pdf
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/64551238319.pdf
    • https://cdn.shopify.com/s/files/1/0431/2678/4157/files/36111953273.pdf
    • https://cdn.shopify.com/s/files/1/0440/2338/2174/files/irrigation_agronomy.pdf
    • https://static.usrfiles.com/ugd/289c5e_147f47f29de94e9b86a55e6f2a12894c.pdf
    • https://static.usrfiles.com/ugd/b8c837_508eca07613e405485a54498daf816ec.pdf
    • https://static.usrfiles.com/ugd/0010c8_91cef5818f794e5995ea702b082716b5.pdf
    • https://static.usrfiles.com/ugd/430cb2_7644fc693c17493cb23593ec45890bb5.pdf
    • https://static.usrfiles.com/ugd/d54300_27f260c7b0cb42a1b3e7f6fe019d438d.pdf
    • https://static.usrfiles.com/ugd/8ade13_31d6b621004c4d5ca591c2b0e7eff28a.pdf
    • https://static.usrfiles.com/ugd/7ae8b3_c617535ded904ad99b73fa0ee06ea60a.pdf
    • https://static.usrfiles.com/ugd/11f207_00138b60257e4f4c95abbf3b1785bc74.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a92a.bin
eae4ac1f47b866464e026401dc4b139cb4a30292b277ee1278f9360e7f9981a7
pdf-font-stream PDF embedded font (sfnt) at offset 0xA92A 5288 bytes
font_01_sfnt_off0000bb1d.bin
e8b4358df62a2968446d02d4c996b7f390344a3e895948ff24769f7e506449e7
pdf-font-stream PDF embedded font (sfnt) at offset 0xBB1D 10768 bytes
font_02_sfnt_off0000e005.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xE005 4324 bytes