Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0de61e58c39583f…

MALICIOUS

PDF

52.4 KB Created: 2020-08-31 02:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 515b53516b98dab07f200d2136a78ea1 SHA-1: 0202d6b752b20f6a5f3ff6423b59488d8f1b02e5 SHA-256: d0de61e58c39583f84f1094957e572d1602ec2c4ef4d7536cc71c402645939f6
120 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, disguised with keywords related to 'Directv now app windows 10'. The file also exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to static.usrfiles.com. The primary malicious intent appears to be directing users to the ttraff.cc redirector, which likely serves as a gateway to further malicious content or phishing pages.

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=directv+now+app+windows+10
    • https://static.usrfiles.com/ugd/9b33c5_17657e4c5a154cc19e2b7a99d39ec77b.pdf
    • https://static.usrfiles.com/ugd/79cb75_f5be415dec8548a3aa95cf91619a81a4.pdf
    • https://static.usrfiles.com/ugd/b444d4_43b4d6d9eaad4e27af9232591b6f52e2.pdf
    • https://static.usrfiles.com/ugd/111c46_8446567e719e4723b501049e22b77296.pdf
    • https://static.usrfiles.com/ugd/b8c837_9457d1d0d431470e8844057789c5ded9.pdf
    • https://static.usrfiles.com/ugd/5360f8_347a0cd46b44451d9be965be4f1f9284.pdf
    • https://static.usrfiles.com/ugd/e5cbe5_debfc35444394b56be2bebc20b7d2532.pdf
    • https://static.usrfiles.com/ugd/e2c250_b94fff62366a4bdea63f65197552ebd1.pdf
    • https://static.usrfiles.com/ugd/72b0e7_6bd344de7b9f45ef8af632a70c3afa0d.pdf
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/zomovaxivogapebadedafer.pdf
    • https://cdn.shopify.com/s/files/1/0433/5819/1768/files/77011107478.pdf
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/application_lifecycle_management.pdf
    • https://cdn.shopify.com/s/files/1/0431/4444/6118/files/nepedokapaluvovomem.pdf
    • https://cdn.shopify.com/s/files/1/0431/3061/8011/files/59718965905.pdf
    • https://cdn.shopify.com/s/files/1/0433/8188/3030/files/getovuzakonebe.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/tinkers_construct_more_materials.pdf
    • https://cdn.shopify.com/s/files/1/0463/2500/6491/files/81064453435.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008086.bin
9f06421394891d9dcfc29399146d5a3aaefa517a1e7ba3a324a756fb05caf7fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8086 5168 bytes
font_01_sfnt_off00009233.bin
5f71009fb64120e2123ec250d12835459b80950811e79de3ea47a78f2d4b2107
pdf-font-stream PDF embedded font (sfnt) at offset 0x9233 10480 bytes
font_02_sfnt_off0000b610.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB610 4324 bytes