Malicious PDF — malware analysis report

Static analysis result for SHA-256 976397470cecb0c8…

MALICIOUS

PDF

54.6 KB Created: 2020-09-07 05:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52562734ea72385d20e3f7b01bc1aaa2 SHA-1: 7e22272b137b48615d44122c86a67bf0fc2abe56 SHA-256: 976397470cecb0c895d5d7551200ace4ae63afc352b519f14d38200daf22d055
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though corrupted, contains text related to 'sol ba programme result 2017 marksheet', suggesting a lure to trick users into clicking the embedded malicious link. The primary malicious URL is https://ttraff.club/wix?keyword=sol+ba+programme+result+2017+marksheet, which is likely used to deliver a secondary payload.

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=sol+ba+programme+result+2017+marksheet
    • https://static.usrfiles.com/ugd/6d45f6_5a59c68968d648969492d024206b56ae.pdf
    • https://static.usrfiles.com/ugd/b58d21_4b100ee886ab4dc99f059c17e3910cb1.pdf
    • https://static.usrfiles.com/ugd/451a43_e90eff8547954c6ca0cc3259816bf68c.pdf
    • https://static.usrfiles.com/ugd/e1d58f_8844aaf2a42c4c41b06b1338010cf5b1.pdf
    • https://cdn.shopify.com/s/files/1/0428/6201/8716/files/woborepiv.pdf
    • https://cdn.shopify.com/s/files/1/0461/7037/4307/files/back_button_apk.pdf
    • https://cdn.shopify.com/s/files/1/0465/1499/5350/files/buzaribizogabuwifem.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/javascript_jquery_jon_duckett.pdf
    • https://static.usrfiles.com/ugd/d54300_b1635f10d1624e7180158e13b3a06fee.pdf
    • https://static.usrfiles.com/ugd/fedf23_2fa7565b95c349e2a652a24fb8e46a19.pdf
    • https://static.usrfiles.com/ugd/a76634_1d58fe00f04a4829a6ed34334fd5188b.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_d8d445f163b5480bab279b7fb3398d14.pdf
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/54684483661.pdf
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/calendario_nacional_de_vacinao_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/witcher_3_nude_mods.pdf
    • https://cdn.shopify.com/s/files/1/0463/5430/1094/files/ark_maplestory_training_guide.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_off000068e9.bin
5c11011efd9d3c0cd2f525acad6a649f0fd1163d39e54ae33caa1c356acb7590		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E9 5948 bytes
font_01_sfnt_off00007d07.bin
a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D07 3720 bytes
font_02_sfnt_off00008866.bin
c5e5c006d18d068d1d15da13c8b0e5b93cd431135e5a483c09edc2229e714ab5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8866 9852 bytes
font_03_sfnt_off0000aa6d.bin
0706d32e91b9b5e3fab38026a8d04a60b9acb1858b70eec9da617a939c701fe3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA6D 10868 bytes

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