Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c61ff70e3bd4069…

MALICIOUS

PDF

35.9 KB Created: 2020-08-31 02:52:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 717ffef7e56ad9c80feac587b2be131d SHA-1: a9ecf89d952520d1669d899464f0d41dd75d5249 SHA-256: 7c61ff70e3bd406952418e04bdf2a264c3c98f9b7dfca28270c7773b16bf8013
128 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is presented as a download for 'god of war ps2 iso 200mb'. This lure is further supported by the 'SE_DOWNLOAD_BUTTON' heuristic, indicating a call-to-action. The document body, though heavily obfuscated, contains the malicious URL and a list of other URLs, likely part of a link farm. The primary malicious IOC is the redirector URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=god+of+war+ps2+iso+200mb
    • https://static.usrfiles.com/ugd/b8c837_c501d8fa13944c5da4245ccb5664cdc9.pdf
    • https://static.usrfiles.com/ugd/9a242c_50b68dba5667445da6da44f7cb64f65f.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f7cf76f30f945db8918bd3374027ccb.pdf
    • https://static.usrfiles.com/ugd/df4650_5ea5acf6ee864f18bb22d8ec919f498d.pdf
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/maps_of_meaning_audiobook.pdf
    • https://static.usrfiles.com/ugd/1cc7e8_3321e4de9b494852a146ab7e59d58825.pdf
    • https://static.usrfiles.com/ugd/d54300_be06161f43a147dc8aad1ef8928b17e3.pdf
    • https://static.usrfiles.com/ugd/b8c837_703ffef223da4f76a51eb4bc49d24e1d.pdf
    • https://static.usrfiles.com/ugd/87d215_f280e429e39b4f0384ee7a53838aea18.pdf
    • https://static.usrfiles.com/ugd/b8c837_a1e595c142fe4d1aa22bfba95c315d95.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_off00004c42.bin
6237cc0d19d0b043544d96496704fff42fb9f8fac7c6df5579c41090a3c1a4b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C42 5692 bytes
font_01_sfnt_off00005fa2.bin
12821a1490cb76394305609ee7a6548e9cd84d1db5716f9cbd3ffaf38b3f5c75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 10404 bytes

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