Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be22725ce9b49d9…

MALICIOUS

PDF

47.5 KB Created: 2020-08-08 14:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 729736bdaafd70cb89c6d56ae00cc12b SHA-1: 96cb0828a3d3523b7e2f30344c9fc4a4192fb4ae SHA-256: 2be22725ce9b49d9d9d7ce33b3fd842c94feb165d0593880e15babddde6cc452
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to shopify.com and other domains. One critical heuristic firing indicates a malicious redirector link to 'https://ttraff.ru/pify?keyword=aida+model+in+advertising+pdf'. This suggests the document is designed to lure users to malicious infrastructure. No scripts were extracted from this sample.

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.ru/pify?keyword=aida+model+in+advertising+pdf
    • http://files.sisteraspensorensoneugeneoregon.com/uploads/1/3/1/3/131383480/gokinuxope.pdf
    • http://files.monumentalworship.org/uploads/1/3/1/6/131637679/9077a.pdf
    • http://files.zoezimski.com/uploads/1/3/1/4/131454850/9df4d0ba26a5d8.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/tipos_de_balance_general.pdf
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/setidibinu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3485/9941/files/pumejozexabijiwamuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdf
    • https://cdn.shopify.com/s/files/1/0435/8170/2303/files/wiguzeliwibujunarig.pdf
    • https://cdn.shopify.com/s/files/1/0429/6943/2230/files/manual_compression_test.pdf
    • https://cdn.shopify.com/s/files/1/0435/6712/0539/files/soda_free_activation_key.pdf
    • https://cdn.shopify.com/s/files/1/0434/2421/9288/files/13276618239.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdf
    • https://cdn.shopify.com/s/files/1/0438/0894/8386/files/separadores_quirurgicos.pdf
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/69076792375.pdf
    • https://cdn.shopify.com/s/files/1/0447/8858/0512/files/admirvel_mundo_novo_aldous_huxley_download.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_off00006e36.bin
7c41162afdddf4fc59e30831da91ddcc0ab973e6d2967e5ef75edea16dddb890		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E36 5200 bytes
font_01_sfnt_off00007fd2.bin
b8da87b420d944037d9ee58f5d6ee76a9bacd0ecb1570c382447081db0359719		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD2 10196 bytes
font_02_sfnt_off0000a29d.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA29D 4324 bytes

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