Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab89925774decf12…

MALICIOUS

PDF

41.3 KB Created: 2020-09-16 17:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 00b47d1084371c8dd5d433b1c4d316aa SHA-1: 1c82474cfd8c9cbfdd4b78ba83168c6205ac7aef SHA-256: ab89925774decf12ca5c012d27777c0c93842ed0080376b31847a27a95d750a6
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary heuristic firing indicates a malicious redirector link, and the document body contains the suspicious URL. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=alfred+adler+theory+child+development
    • https://474bc2b7-7c93-497f-a2cc-71493b8ddc3a.filesusr.com/ugd/33ab24_a27a889e38554549bb87e033af03279c.pdf?index=true
    • https://87bab280-d5f6-4984-a5b3-866b5250a315.filesusr.com/ugd/9cfd0a_40b54cf3482047cc97e8bfcca805dc67.pdf?index=true
    • https://ab439087-6f94-41a1-aa10-52e968f3f115.filesusr.com/ugd/8ce377_66081dce9b0f48bd8f90fe6f0b0587b1.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0439/5224/2856/files/jelupefafiwadinunixuwez.pdf
    • https://cdn.shopify.com/s/files/1/0440/7263/2470/files/scert_telangana_textbooks.pdf
    • https://22d4760d-0511-4e42-a791-fdff23529de6.filesusr.com/ugd/035627_7ce75505a5b14889a45632d0461b0330.pdf?index=true
    • https://6e0a538a-c332-4a01-9a31-3f0431ba1fea.filesusr.com/ugd/011e4b_75ac6ffabf964129bcc97ec27cb1735c.pdf?index=true
    • https://3c7dc07b-35a2-46a8-83ce-f4e48d35b65e.filesusr.com/ugd/65b209_38a775c8bbac4b7bb1f48641d20eb34b.pdf?index=true
    • https://091e8b8c-0f07-4fc5-9bf0-7efc8780fa8e.filesusr.com/ugd/c638b7_cd6396024a184043aed9f159ba961087.pdf?index=true
    • https://c92e6b2c-f518-4b0b-91dd-5a6b1b9af4c9.filesusr.com/ugd/3283b0_77fc5cf9a27e48c6af849d8b7776fe8f.pdf?index=true
    • https://0bfee57d-7321-4d14-82cc-3f834c2badd2.filesusr.com/ugd/29c71c_1719086e39c04abebb390a03880285d1.pdf?index=true
    • https://1c732f40-f363-4d74-b0b1-a09beb9ec592.filesusr.com/ugd/735189_a894b7625106469db9f5fd95bfb52245.pdf?index=true
    • https://9844a9d2-1846-42ab-9811-ec65c13ab572.filesusr.com/ugd/c844bf_8448f81aa22c437da1d00a9a960edfbc.pdf?index=true
    • https://149bcc9a-cf28-4b51-b0bf-d1a1d60a65de.filesusr.com/ugd/696117_ec26c444d18f41ff9e0f3a2decf1d868.pdf?index=true
    • 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_off00006527.bin
e1d3be35ab0c3fa4a03d6825ada5255c4f4fb01684848fabc39bc1b02caadadd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6527 5368 bytes
font_01_sfnt_off00007750.bin
d19aefded8b40849d119ad2109b7187ba723dddd878a6ddede6728c9c0f688a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7750 9716 bytes

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