Malicious PDF — malware analysis report

Static analysis result for SHA-256 c212f29631d567f5…

MALICIOUS

PDF

40.9 KB Created: 2020-08-16 21:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f2ef23c496047a717d7de697bbb3c68 SHA-1: f5da8f3247d7850da207071b17882b1074e6d7c1 SHA-256: c212f29631d567f5e48e7388086a551b7ec8ad27b6ad209d1af6be224960ff24
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector disguised as a hack generator. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=naruto+online+hack+ingots', which is flagged as malicious. The presence of numerous external PDF links suggests an attempt to distribute further malicious content or engage in SEO manipulation for malicious purposes. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may be part of a multi-stage attack, potentially requiring a password to decrypt a payload.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/pify?keyword=naruto+online+hack+ingots
    • http://jopenut.jasonfranklin55.com/uploads/1/3/1/3/131398097/9840541.pdf
    • http://daruguv.veronicaholisticteacher.com/uploads/1/3/1/3/131398020/5074937.pdf
    • http://bepoke.station13.co.uk/uploads/1/3/0/8/130874493/basironokute.pdf
    • http://files.fairytale-wedding.ca/uploads/1/3/1/4/131453401/tujipom.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/megoxidojixugapilanaseg.pdf
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/48282150019.pdf
    • https://cdn.shopify.com/s/files/1/0432/1945/2072/files/professional_baking.pdf
    • https://cdn.shopify.com/s/files/1/0437/6638/2746/files/generac_wheelhouse_5500_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/4326/6458/files/united_airlines_logo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2582/5955/files/notafafu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/wofokebujodumas.pdf
    • https://cdn.shopify.com/s/files/1/0434/5364/4966/files/functional_behavior_assessment.pdf
    • https://cdn.shopify.com/s/files/1/0429/3738/5123/files/42885475186.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/34170049571.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_off000061a0.bin
8087074fbe6f7182fb5dcee7d20de718177fd1a5f8849338e5c1b6c482f0e05d
pdf-font-stream PDF embedded font (sfnt) at offset 0x61A0 5096 bytes
font_01_sfnt_off000072ef.bin
aba529e67105e29985e71989904e3390dced072f1653f5bf6cea41d9f8f3a3e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x72EF 10376 bytes