Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6b548b18ab34965…

MALICIOUS

PDF

50.7 KB Created: 2020-08-03 03:34:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 800875702f8147c46698277ebbd46704 SHA-1: ec3e9f18da01bf3b25a70ec6797f4aa28825350e SHA-256: e6b548b18ab349658c406bf2aabccac91a815a135e82ed8c60e3edba60c2a562
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, https://ttraff.cc/pify?keyword=mil+std+810e+pdf, is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to the same malicious URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute malicious content. The presence of multiple external PDF links further supports the idea of a content distribution network for malicious files.

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/pify?keyword=mil+std+810e+pdf
    • http://files.mayfieldwoodsorchestra.com/uploads/1/3/1/0/131070374/jisekabiwuzo.pdf
    • http://files.cooperlaifineart.com/uploads/1/3/0/7/130739309/xekonaxawit_moxerisa.pdf
    • http://files.singingbowlservices.com/uploads/1/3/0/8/130814124/zokutiwe.pdf
    • http://files.maskandbauble.org/uploads/1/3/1/4/131407214/donosaze.pdf
    • http://files.wearewnc.org/uploads/1/3/1/4/131406698/9117c95ed5.pdf
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/jifazi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/36958728469.pdf
    • https://cdn.shopify.com/s/files/1/0435/6443/3566/files/dumowelifubovamopazijope.pdf
    • https://cdn.shopify.com/s/files/1/0430/9316/4181/files/21155102480.pdf
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/totinudukaso.pdf
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/jamunox.pdf
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/wexabimemapurasuxenumowoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/0087/9510/files/57156220209.pdf
    • https://cdn.shopify.com/s/files/1/0428/4376/6950/files/milalogexevoraxafawekejib.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/mozed.pdf
    • https://cdn.shopify.com/s/files/1/0432/0378/8960/files/basokevifuxufavizikuk.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_off00007dde.bin
eef982b0e2739d92311dbe58b5b581785c13b15471020dd9112dc1ef70d01ade
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDE 4696 bytes
font_01_sfnt_off00008de5.bin
00a4eeee654b40ede1fb2a68c485614ea65c2484213c6d656bb3c4b5aab58a9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE5 9988 bytes
font_02_sfnt_off0000b024.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xB024 4324 bytes