Malicious PDF — malware analysis report

Static analysis result for SHA-256 cabbf19f2bde721f…

MALICIOUS

PDF

48.2 KB Created: 2020-08-31 01:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e26983a83b0862b2d2547a1d62c97c5 SHA-1: be9b464439d210e7bffa2182acaf30a6bd32f8bc SHA-256: cabbf19f2bde721f433f563c6a30de262a2a9e4f85ff7b9bee6e1453390531ac
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.club/wix?keyword=pokemmo+roms+black+and+white'. This URL is presented within the document body, disguised as a download for 'pokemmo roms black and white'. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to 'static.usrfiles.com'. No scripts were extracted from this sample.

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=pokemmo+roms+black+and+white
    • https://static.usrfiles.com/ugd/4b7290_8b5a0d4024e9400fbb22247ce0af41a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_113321a4240248e5a9ef02794b89c394.pdf
    • https://static.usrfiles.com/ugd/97634b_a66235d5f2b444c996ae859f8274836f.pdf
    • https://static.usrfiles.com/ugd/efb3f0_8c38033f9f6447acac0999065fd0f8ca.pdf
    • https://static.usrfiles.com/ugd/764aaa_8f27fc23c04a4791a967b07a94eab55b.pdf
    • https://cdn.shopify.com/s/files/1/0440/1584/5541/files/fafujifenowiduzegirum.pdf
    • https://cdn.shopify.com/s/files/1/0463/1327/5554/files/java_7_67_64_bit.pdf
    • https://cdn.shopify.com/s/files/1/0434/3175/5932/files/battery_low_notification_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/wabefaniluf.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8389/files/24299123166.pdf
    • https://static.usrfiles.com/ugd/eda9ba_9709334527ae441fa75cd1c295435738.pdf
    • https://static.usrfiles.com/ugd/b8c837_5b974d6ded46428b8c348d19543470f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_dac046756b5645e0902e25a83b11bb75.pdf
    • https://static.usrfiles.com/ugd/ecec20_810d7f4657bc436180c9b6cf7086c638.pdf
    • https://static.usrfiles.com/ugd/b8c837_71205bbc53eb4b099c60c9424b31e795.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c78.bin
94d1554f300db1f6728ebc41c922031108b894fb33a217ee830f809d11483db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C78 5692 bytes
font_01_sfnt_off00005ff6.bin
055f4b611c44aeb24aa33941e63f42aae51452ea39379c8245cab0c8b0cf6a74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 5476 bytes
font_02_sfnt_off00007267.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7267 1800 bytes
font_03_sfnt_off00007af5.bin
f39d6691cebbd83ab63d1daaf90d67a075d75a7780f0913b93c3797467a3738c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF5 10212 bytes
font_04_sfnt_off00009e25.bin
77d0e41b193f2956426f125f137c5665e22c2099967b8d3a504bff5b234847bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E25 16076 bytes

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