Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c94304e9fafe48…

MALICIOUS

PDF

50.8 KB Created: 2020-08-31 05:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 325e153e9e497eba2f2eb400eba0c13a SHA-1: e75ce30c4a60080c8838e61be76cb2d567829d0a SHA-256: 49c94304e9fafe48e95a94ee40f6161cc71dcd44f2e18738712c7bf99686a011
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious URL, ttraff.ru, which is likely part of a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains the same URL and text related to 'Gta 4 psp iso', suggesting a lure to trick users into clicking the malicious link. The presence of a PDF link farm heuristic further indicates a coordinated effort to distribute malicious content.

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.ru/wix?keyword=gta+4+psp+iso
    • https://static.usrfile
    • https://static.usrfiles.com/ugd/26481d_a18ebca254354756a6150a5634f39348.pdf
    • https://static.usrfiles.com/ugd/ade4e6_de07b3de755d4274a752b95adeaa0dcc.pdf
    • https://static.usrfiles.com/ugd/9219f8_4f276260bea94bb4a2a0059b905f77f5.pdf
    • https://static.usrfiles.com/ugd/b8c837_d4ffcaa7ded843768f2e4d80aa351a0d.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_a53066328df14c43b669959dd49665e4.pdf
    • https://static.usrfiles.com/ugd/353d00_f6d5cf565433465c902364f17b5211ec.pdf
    • https://static.usrfiles.com/ugd/63d3ad_f07f2f3664b840028c7c71e9c61c7363.pdf
    • https://static.usrfiles.com/ugd/b8c837_e1dbbfb8f8a042a18d05d0f8565bf543.pdf
    • https://static.usrfiles.com/ugd/0a593f_ba79e624f2e24a5cba37b676d2f45ec7.pdf
    • https://static.usrfiles.com/ugd/3649d2_b4847db0c9f142759d29a2fe7820708f.pdf
    • https://cdn.shopify.com/s/files/1/0430/5282/6773/files/basic_algebra_worksheets_addition_and_subtraction.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/mines.pdf
    • https://cdn.shopify.com/s/files/1/0434/7199/5030/files/kefepabebubefovenasobiwe.pdf
    • https://static.usrfiles.com/ugd/ae059d_e2471b44c66e43d29df2c8f3a2be577e.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb0b269674d1435fa64e45e31a845c02.pdf
    • https://static.usrfiles.com/ugd/9b33c5_5e18b705a82d426c94080cfd4ae09a1e.pdf
    • https://static.usrfiles.com/ugd/77d535_ff3db8df2af94732a3a07b9a4ab90b4c.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006933.bin
328c5cf45f94d4e3c262a2a4a0678a267aca3f33da8a132306713f4c9a725abc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6933 4804 bytes
font_01_sfnt_off000079a3.bin
0f740872c9ba99ba2808e86ca1aa710947acf25eef927d3004a187dd3557d740		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A3 2092 bytes
font_02_sfnt_off00008349.bin
cd240a8aacd720f8a42f59be15b542b1d47d6f5d94b91d3eb3f77090f79f7b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8349 10652 bytes
font_03_sfnt_off0000a7fe.bin
87389102bdbaea70fa412bb97762ac6edd54f7040af76e5ed37a4f51f06bae3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7FE 16372 bytes

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