Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d47f62540f1687…

MALICIOUS

PDF

38.8 KB Created: 2020-08-31 17:33:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cdb6c98f51e592c8c5ff14d57e14ac0 SHA-1: 3612c4200ec43bef097e7410ffe617b46fa1b273 SHA-256: e9d47f62540f1687c3c10518775290ba182a335aefad092db4299e33117a0d11
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Animal Jam free for android' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used to serve further malicious content or phishing pages. Another heuristic identifies a large number of external PDF links, suggesting a link farm for SEO poisoning or traffic redirection. The document body, though partially corrupted, contains the malicious URL and references to invoice/payment language, reinforcing the lure.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=animal+jam+free++for+android
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/kaspersky_keygen_2015.pdf
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/kajawet.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7872/files/rixarunujuvewuvupobojobig.pdf
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/60282722452.pdf
    • https://static.usrfiles.com/ugd/11f207_20b3cad0fd234c729f41b125ba71bc0d.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_f709ccb6c0b5461f96aa65ec49929d92.pdf
    • https://static.usrfiles.com/ugd/429b25_671b8f677b274b0592513c16ebe0642d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a8f2906ae8a04caa8d393c15974df4cc.pdf
    • https://static.usrfiles.com/ugd/837d34_8fab30028a6b4e03b1cd8bec69ff4577.pdf
    • https://cdn.shopify.com/s/files/1/0431/5139/2922/files/novetodojutume.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/60117410299.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_off00005bdd.bin
58d65d7016c4d33dfa627bf3549f0ffe8ab752319d44b2df6aa39ebb7184688c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDD 4940 bytes
font_01_sfnt_off00006c95.bin
f0a9f412ea190582baa83d8ea18b0e4c35ba181f8c18bfe327d030800faee7d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C95 10008 bytes