Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0ce0c4d5ad309d…

MALICIOUS

PDF

75.8 KB Created: 2020-08-31 21:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f3dd4a3284506bff341345f1f6a0d97 SHA-1: 1449800bd484a930eb8b49023eb0f44e68d6b3b8 SHA-256: ff0ce0c4d5ad309d6763fabae34961ca24148062a14fc7d2d7d5ca2fcb5483e3
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, specifically pointing to 'https://ttraff.ru/wix?keyword=accumulation+noun+form'. This indicates an attempt to direct the user to a potentially harmful website. The document body, though heavily obfuscated, also contains this URL, reinforcing the malicious intent. The presence of numerous PDF links, as indicated by the 'PDF_SEO_LINK_FARM' heuristic, suggests a tactic to distribute malicious content or engage in SEO manipulation for malicious purposes.

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=accumulation+noun+form
    • https://static.usrfiles.com/ugd/bd5c68_a1ec2a3d4c154135b108ac18e88b1390.pdf
    • https://static.usrfiles.com/ugd/b8c837_6903746f92c34522a1c43f30543d62ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_24029676a1e841fd88e991b941f4c2c0.pdf
    • https://static.usrfiles.com/ugd/724bd4_7c14a8efd05d41688ac37a0565526817.pdf
    • https://cdn.shopify.com/s/files/1/0435/1036/6362/files/xirovumamix.pdf
    • https://cdn.shopify.com/s/files/1/0428/2017/3983/files/falagix.pdf
    • https://cdn.shopify.com/s/files/1/0430/3034/7938/files/60153954035.pdf
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/56838778507.pdf
    • https://cdn.shopify.com/s/files/1/0441/0369/6536/files/timer_for_14_minutes.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/4461493.pdf
    • https://cdn.shopify.com/s/files/1/0432/9567/0432/files/56773839011.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/96845283622.pdf
    • https://cdn.shopify.com/s/files/1/0434/0128/1703/files/kilum.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000866d.bin
25464498db25ca3992abd1f43a50c15716f6a3e28f8c2a7faff8bbf34ef4857e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x866D 6240 bytes
font_01_sfnt_off00009bfc.bin
02396a332810deea6ba5d7308a39c7a55eed993c72ed26cfde14eea26e28a684		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BFC 4840 bytes
font_02_sfnt_off0000ac52.bin
f7d44d9094878d25bae90c66ce4237cd91eb7d3c0b3de2cafc4b7a06f9af3144		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC52 7200 bytes
font_03_sfnt_off0000bfa0.bin
83982827043b206fcd8a45e59ace46d347109874a1ca0eb3909abcc26c6c072a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFA0 14784 bytes
font_04_sfnt_off0000efab.bin
68420b3de255e25ade45a8b536b2213b71f970cadce2e20a7aae216ef4949bcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAB 20808 bytes
font_05_sfnt_off0001132e.bin
522bcaf72eda5f737a4e075da8eb64541eded325e850a016823143081f95f897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1132E 3080 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.