Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f39c0b9770b9eb…

MALICIOUS

PDF

40.2 KB Created: 2020-09-10 10:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e2763f2d95ed1ec395b9aab3a9f76fc SHA-1: de50054a159e61b6524806c9a718f1e827622a04 SHA-256: c7f39c0b9770b9ebe15954fd55e119a93636fb11566574a8f82d787b7a007cd0
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains a URL that appears to be a lure for search engine optimization, aiming to trick users into clicking on it. This link leads to a redirector that likely serves further malicious content. The presence of numerous other links, many pointing to Shopify domains, suggests a link farm designed to improve search engine ranking for malicious URLs.

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.club/wix?keyword=gmail+dark+mode+android+10+pixel+3
    • http://lafix.helpatexasteacher.org/uploads/1/3/1/4/131453133/4628070.pdf
    • http://files.lthinchrist.org/uploads/1/3/2/6/132681482/1d940951ddcdc.pdf
    • http://files.positivelifetransformations.com/uploads/1/3/1/6/131637273/bexerexekali-nivoxef-worowexako.pdf
    • http://tasefewe.niosha.com/uploads/1/3/1/6/131637021/b5aef1ec61.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/uti_signature_attested_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/5143/4652/files/65447362477.pdf
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/vumefiviji.pdf
    • https://cdn.shopify.com/s/files/1/0429/1375/9395/files/nasanemiminezogoxigo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0631/2098/files/dell_latitude_e6400_specs.pdf
    • https://cdn.shopify.com/s/files/1/0433/6818/6024/files/bodybuilding_exercises_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/55027898344.pdf
    • https://cdn.shopify.com/s/files/1/0431/7115/2023/files/6445968534.pdf
    • https://cdn.shopify.com/s/files/1/0431/9769/4109/files/tagefisek.pdf
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/66528478248.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_off00005f65.bin
c4e46d1a72a3b67bedcd313786b05cadfdae069153e7861ba4da5064592e153b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F65 5448 bytes
font_01_sfnt_off000071dd.bin
ea12b8bb472d901be16841b737c60f7a572c281cfcc2952390ba30b3c9de06ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71DD 10012 bytes

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