Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c0d3b2b6e0b8cc8…

MALICIOUS

PDF

52.8 KB Created: 2020-08-12 04:59:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6935a8fca0bfacc05eaa48372a5f6d38 SHA-1: 3710a81036e1e4be7c96a75eba5a71085c59f339 SHA-256: 1c0d3b2b6e0b8cc8fe2a56d7e3d341f031fc3dab2915c88979d3b9c1e750cdc9
120 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to PDF files hosted on various domains. One of these links, 'https://ttraff.cc/wb?keyword=dancing%20line%20the%20piano%20sheet%20music%20pdf', is identified as a malicious redirector. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution.

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.cc/wb?keyword=dancing%20line%20the%20piano%20sheet%20music%20pdf
    • http://files.opunakesurflifesaving.com/uploads/1/3/0/7/130775014/d7689e.pdf
    • http://files.pdxccc.com/uploads/1/3/0/9/130969312/gesamama.pdf
    • http://pazuraro.deliveredphotos.com/uploads/1/3/0/7/130775903/858bd420e6.pdf
    • http://jajedix.nddistrictyouth.org.uk/uploads/1/3/1/4/131406437/6244726.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7997453156.pdf
    • https://cdn.shopify.com/s/files/1/0433/3908/8027/files/70991309103.pdf
    • https://cdn.shopify.com/s/files/1/0428/8774/1607/files/96907856914.pdf
    • https://cdn.shopify.com/s/files/1/0436/3629/3785/files/988690347.pdf
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/87184210469.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1413/files/11517743778.pdf
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/75595220699.pdf
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/how_to_combines_on_mac.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/vadekazepumemonewar.pdf
    • https://cdn.shopify.com/s/files/1/0446/4692/4451/files/kingdon_agendas_alternatives_and_public_policies.pdf
    • https://cdn.shopify.com/s/files/1/0440/0729/3086/files/savurufarumotakijavizanev.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007af7.bin
99e55c9d4a4e98f432175725aabbfd5347044e7ce3daefcf86546967febe3a73
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF7 5472 bytes
font_01_sfnt_off00008d6d.bin
74de3229b8fbe80e303d6ab7d3a77af7f1d7f8a2352788ea487e62ba68980d07
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6D 10584 bytes
font_02_sfnt_off0000b149.bin
5ed570ae14c202d12182337b245ae5fcced705a00a6bf4a302a125516f26af46
pdf-font-stream PDF embedded font (sfnt) at offset 0xB149 16100 bytes