Malicious PDF — malware analysis report

Static analysis result for SHA-256 91263a7c01d30215…

MALICIOUS

PDF

34.2 KB Created: 2020-08-31 06:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6884b7369af0fc161dd667d656dc86f7 SHA-1: 880a36cd4db71a8d8aabd6fec5b81a7190ecb32b SHA-256: 91263a7c01d30215d1949d77a106da0fe87f65f0de9265e7f1cd90f62ef89be1
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, pointing to 'https://ttraff.ru/wix?keyword=the+maze+runner+book+1+age+rating'. This URL is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded links to PDF files, many hosted on Shopify and static.usrfiles.com. The primary malicious URL is the most significant IOC.

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=the+maze+runner+book+1+age+rating
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/nakazugaravudoram.pdf
    • https://cdn.shopify.com/s/files/1/0431/5670/1346/files/28231451436.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/45995073352.pdf
    • https://static.usrfiles.com/ugd/fe83c3_1b058df6c9304420bb9725e1cbc8d0b3.pdf
    • https://static.usrfiles.com/ugd/37321e_1ff86d87289c496d93d5a772c7b3d715.pdf
    • https://static.usrfiles.com/ugd/cafc24_ec0e6832644c4c53a6b0f43ad67a3d83.pdf
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/jorubajibokeriguvuju.pdf
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/rudram_chamakam_lyrics_in_kannada.pdf
    • https://cdn.shopify.com/s/files/1/0434/6239/4021/files/49620452920.pdf
    • https://static.usrfiles.com/ugd/a6e5e9_df934dcb00f94ccf9c35c96653e8c771.pdf
    • https://static.usrfiles.com/ugd/b42fd6_52d0a75a3fac485facb8aba812f8eb85.pdf
    • https://static.usrfiles.com/ugd/b8c837_fa3f79f315344e1b9542d8b04c15f966.pdf
    • https://static.usrfiles.com/ugd/b8c837_de06e31410784dde8635aea42a71b47c.pdf
    • https://static.usrfiles.com/ugd/63d3ad_0534c759f2b24f1c90efa58bf37f7cdb.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004907.bin
2e258825e49dd6e8cf379565b8097a4bf827a2e11b45daf34aa9de8d475897ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4907 5144 bytes
font_01_sfnt_off00005a70.bin
4dbd7f7191fa1f64dbabd2f622701b21ce9d99bf2cf40d1bd8336850d3ef175e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A70 10128 bytes

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