Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0c327281dff38c…

MALICIOUS

PDF

54.6 KB Created: 2020-09-02 00:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 652e96c37964397d5d24a0bfeda9c413 SHA-1: 65dab28252fddd55e7e32e33628d1d113f23b745 SHA-256: 9e0c327281dff38cdf84a595d2ab99703aa2061ea259bcd25422ec640eea6b59
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.ru'. It also exhibits a PDF link farm behavior, embedding numerous external links, including one to a Shopify domain. The document body, though heavily obfuscated, contains the same redirector URL, suggesting an attempt to disguise malicious content as a lure for Punjabi music or other content.

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.ru/wix?keyword=brand+new+punjabi+song+audio
    • https://cdn.shopify.com/s/files/1/0447/9077/5965/files/ra_1364_sanitary_engineering_law.pdf
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/pagebobixe.pdf
    • https://cdn.shopify.com/s/files/1/0430/3188/8035/files/33001422052.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/38450524079.pdf
    • https://static.usrfiles.com/ugd/0a593f_a43af155da084ceeb5e8052da2b8a48c.pdf
    • https://static.usrfiles.com/ugd/95089d_86ad3474b16c407dbc20e220bebaa10e.pdf
    • https://static.usrfiles.com/ugd/de65f7_fcd22f62d24040d3b253f292cd1a764d.pdf
    • https://static.usrfiles.com/ugd/7f16bd_534471842fdf4cef92a40e18dd54c597.pdf
    • https://static.usrfiles.com/ugd/0c41e7_2b23a5e446cb4200b592e3604e150993.pdf
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/a_an_the_no_article_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0435/3071/5295/files/74335966657.pdf
    • https://static.usrfiles.com/ugd/12f4eb_7060c0c9075c4a938b661a23dcca6b0f.pdf
    • https://static.usrfiles.com/ugd/73cb9e_5bb8bb2853b3486fa8aaa9db9085fa54.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_off000075ba.bin
d703625f3e23d25365a8e0b80d1fe6e818d4ed85001010bfe7499ab5c38120e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75BA 5452 bytes
font_01_sfnt_off00008862.bin
33928003038563ea3fe4d7fe1398cf0f0913f218d29877977cc1c6df2a067234		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8862 15328 bytes
font_02_sfnt_off0000b873.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB873 16204 bytes

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