Malicious PDF — malware analysis report

Static analysis result for SHA-256 56c6b6e1be575260…

MALICIOUS

PDF

40.6 KB Created: 2020-08-21 11:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b68a2fc2471aee417d2b963740c9d97 SHA-1: 29575203c6b5f18cd0c6a2f902a40acbe23e5b8d SHA-256: 56c6b6e1be575260c78b8168faee6700fb1524cffb8e665f4e991c34a0819141
180 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.com'. The document body also explicitly requests recovery secrets, aligning with a phishing or scam lure. The presence of numerous external PDF links, including one to 'cdn.shopify.com', suggests a link farm designed to obscure the ultimate destination. No scripts were extracted from this sample.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.com/pify?keyword=blockchain+3.+0+pdf
    • http://lemubo.mylifebuilder.org/uploads/1/3/0/7/130776167/6822367.pdf
    • https://cdn.shopify.com/s/files/1/0437/9806/9410/files/29605054029.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/devijapuwarivenowo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9832/5663/files/16958143776.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/kagasefijajowemepejirol.pdf
    • https://cdn.shopify.com/s/files/1/0434/4882/8065/files/canon_in_d_piano_violin.pdf
    • https://cdn.shopify.com/s/files/1/0435/8524/1256/files/nosemapitavipebogokuzume.pdf
    • https://cdn.shopify.com/s/files/1/0428/8885/5718/files/c_b_i_ka_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/0922/0501/files/nijovisaxonelexiwam.pdf
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/sepikagimuwilij.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4001/files/wow_warlock_mount_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/3549/0461/files/jimebasasejowi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0504/1051/files/15111305816.pdf
    • https://cdn.shopify.com/s/files/1/0449/9108/6750/files/periodic_table_printable_black_and_white.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_off00005e2a.bin
9408635e52b3e6612e054efd94360579d120fc370c3fbbbb98afb3dc928e525f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2A 5420 bytes
font_01_sfnt_off00007088.bin
a8be158d2dcc28c6643527313d5fafb3e4f322e7dd8eb5047d6ad521ad2fafa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7088 10724 bytes

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