Malicious PDF — malware analysis report

Static analysis result for SHA-256 253f50ab270e740b…

MALICIOUS

PDF

41.1 KB Created: 2020-08-29 06:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ae96770c8c00d182d405f50eb382889 SHA-1: d78a979ba9dcfea4127ddec112cfbe2078bee9b8 SHA-256: 253f50ab270e740bdd4e30c9556b5a76b83f236dfe7f8d7ccecfa81b8076573c
168 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains references to 'camscanner' and includes the malicious URL. The presence of a 'password-protected archive lure' heuristic suggests that this PDF is intended to trick the user into believing they need a password to access content, likely to bypass gateway security. The primary malicious URL is https://ttraff.cc/wix?keyword=aplikasi+camscanner+untuk+pc.

Heuristics 5

  • 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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aplikasi+camscanner+untuk+pc
    • https://static.usrfiles.com/ugd/b8c837_9c7fed1d42494b16a19a0619eed4f6a4.pdf
    • https://static.usrfiles.com/ugd/b8c837_5108e906952e4dbca29928509db2eede.pdf
    • https://static.usrfiles.com/ugd/b8c837_651e5f6040ec418d9a75004962bd327c.pdf
    • https://static.usrfiles.com/ugd/b8c837_926b4ec59a9f4efbadef14c446f4ef84.pdf
    • https://static.usrfiles.com/ugd/b8c837_17d79c96c04b4b318c9b707972fb986f.pdf
    • https://static.usrfiles.com/ugd/b8c837_be3f52f0c8ca4976b35fcf2b3e52cc59.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ecce2c2441a42d0b8ca3ab46d43b0e0.pdf
    • https://static.usrfiles.com/ugd/b8c837_d67cc1a50274440aa9e2f9275bacda63.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ee0e4978d2f4d1aa929704d3dc48fbb.pdf
    • https://static.usrfiles.com/ugd/b8c837_0003321d600c4ca7967a273a0d5821d6.pdf
    • https://cdn.shopify.com/s/files/1/0437/0586/0248/files/data_aws_iam_role_terraform.pdf
    • https://cdn.shopify.com/s/files/1/0437/9443/2161/files/ruvasumujogug.pdf
    • https://cdn.shopify.com/s/files/1/0439/1275/7400/files/1264686140.pdf
    • https://cdn.shopify.com/s/files/1/0431/7455/9893/files/33962792706.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.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_off00006073.bin
69294035e77bf61ba633de3f6b45cb124bab7774c2393341d480543f0cb3b50e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 5132 bytes
font_01_sfnt_off000071c2.bin
c8a212fbfeb483f447f7f4716d18d631e28cd2cdbc94565451529aed76e0cfb3
pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 11220 bytes