Malicious PDF — malware analysis report

Static analysis result for SHA-256 30bc64c3824299d9…

MALICIOUS

PDF

52.0 KB Created: 2020-08-15 00:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e571daca33bff527aabbb924ac037a3 SHA-1: 4dc9eb955e467ca1fc6ea9f304578415ced133ae SHA-256: 30bc64c3824299d943ead68087d877966203b640f62a64c0a6b5a5a5baba74d1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'piano sheet music' and a URL that appears to be part of a link farm designed to manipulate search engine results. The primary malicious link, https://ttraff.cc/pify?keyword=all+my+hope+piano+sheet+music, is likely used to direct users to a malicious site. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

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/pify?keyword=all+my+hope+piano+sheet+music
    • http://rumotuvep.suilah.com/uploads/1/3/1/4/131437246/932004.pdf
    • http://files.katherineoday.com/uploads/1/3/1/4/131406303/tazivumipituxu_nifigoxedojim_nugimuvosi_garavazaluk.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/photosynthesis_and_cellular_respiration_foldable.pdf
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/millennium_problems.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1635/files/jegewatazukorumakulalexex.pdf
    • https://cdn.shopify.com/s/files/1/0436/6296/6937/files/90366969319.pdf
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/6906038263.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/68500293660.pdf
    • https://cdn.shopify.com/s/files/1/0433/0681/1560/files/banjara_punjabi_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/procurement_and_supply_chain_management_lecture_notes.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/98109195340.pdf
    • https://cdn.shopify.com/s/files/1/0433/9171/3447/files/pexal.pdf
    • https://cdn.shopify.com/s/files/1/0430/0662/3903/files/roman_art_and_architecture_mortimer_wheeler.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_off00007980.bin
4d5b28ceb89e05998f05ec51057ab968180b285eb70bcf6daf5889a5f00a0c71
pdf-font-stream PDF embedded font (sfnt) at offset 0x7980 5168 bytes
font_01_sfnt_off00008af6.bin
6d912994e2e6c1c6c3ab91b67408a0aff8d33906db810d5b3e4f6949596dd972
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF6 10076 bytes
font_02_sfnt_off0000ada5.bin
d973db94ba2c448c661c26f08d051ac794e7cb4f3c7daa33c2141e8036f071b6
pdf-font-stream PDF embedded font (sfnt) at offset 0xADA5 16100 bytes