Malicious PDF — malware analysis report

Static analysis result for SHA-256 90abc02149b68d49…

MALICIOUS

PDF

57.8 KB Created: 2020-08-30 02:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88a2b3838fdf1f312b188d95fa6219d4 SHA-1: 64bfc9d798bc6780522c9920d3bb189528115e88 SHA-256: 90abc02149b68d49661b61977375b6cf5b7e2a912021a046f4f8f4ef3c62a340
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=odd+future+by+uverworld+mp3'. The document body also contains this URL, suggesting a lure to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous embedded URLs, 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.cc/wix?keyword=odd+future+by+uverworld+mp3
    • https://static.usrfiles.com/ugd/b8c837_f93452b4e75f4affa44ca5eb0e7cccdf.pdf
    • https://static.usrfiles.com/ugd/b8c837_1f875d4407444259a3dbeb4d55c5e712.pdf
    • https://static.usrfiles.com/ugd/b8c837_d008720e64f5469e906359ab5684feeb.pdf
    • https://static.usrfiles.com/ugd/b8c837_d9cca24ff3784981981835209f8035c0.pdf
    • https://cdn.shopify.com/s/files/1/0430/4066/9849/files/bloodborne_100_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/ruzojog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pusowa.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/8027550822.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0710/files/66930381772.pdf
    • https://static.usrfiles.com/ugd/b8c837_a7d1e08b2b22426390614c8d885f4e7b.pdf
    • https://static.usrfiles.com/ugd/b52961_b8c7c9dd8b4e4dc8a62d36243785caa3.pdf
    • https://static.usrfiles.com/ugd/d2751c_01fea66f7b27430192e8c8d0ddbde45c.pdf
    • https://static.usrfiles.com/ugd/b8c837_6449315d0e44409598dd7ff201f59c26.pdf
    • https://static.usrfiles.com/ugd/3fc21f_2fa492a2f3734cf2971ed3168758300e.pdf
    • https://cdn.shopify.com/s/files/1/0432/8272/7067/files/28465331802.pdf
    • https://cdn.shopify.com/s/files/1/0446/5275/7155/files/recertification_of_value_appraisal_form.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_off00005462.bin
e329eecbd3ec24717128b26e51bb2681d10c66f244807dae186e077ad148fbb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5462 18948 bytes
font_01_sfnt_off00008f09.bin
f5bead4a4f9f4e374e39d1005fc398fbb585a53cd7e5959f7ad9b8eec325304b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F09 5384 bytes
font_02_sfnt_off0000a151.bin
daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA151 1800 bytes
font_03_sfnt_off0000a9df.bin
7fb557c3f20fcf4418a5309c4db282455f27b345b07fc1d0bf2212e4e4d767ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9DF 15104 bytes

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