Malicious PDF — malware analysis report

Static analysis result for SHA-256 baae867e807eeb4c…

MALICIOUS

PDF

40.1 KB Created: 2020-08-19 03:38:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 829e2a14c492eb22f9f89415294eaa3b SHA-1: 388df78f4c21fe17558286201eefd9826d9c6ab9 SHA-256: baae867e807eeb4cc0ff8e92f798e0473a298947f6dc1de5a073e9aaa09ec0f1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a critical redirector link to 'https://ttraff.cc/pify?keyword=call+to+prayer+audio'. This indicates the document is designed to lure users to malicious infrastructure. The presence of multiple external PDF links, many hosted on Shopify, suggests a link farm for SEO manipulation or to obscure the final malicious destination. The document body, though heavily obfuscated, also contains the malicious URL.

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=call+to+prayer+audio
    • http://files.trademoves.net/uploads/1/3/1/4/131408970/18b921801c20d.pdf
    • http://files.michellebergermd.com/uploads/1/3/1/3/131383453/munimedof.pdf
    • http://sujenolug.shamanicevolution.org/uploads/1/3/1/4/131438188/4743257.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/39906994388.pdf
    • https://cdn.shopify.com/s/files/1/0432/2787/3440/files/mulezadim.pdf
    • https://cdn.shopify.com/s/files/1/0437/2132/6742/files/88296025496.pdf
    • https://cdn.shopify.com/s/files/1/0428/7424/1187/files/html_color_codes_file_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/nupizijakujeduvedugesor.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2761/files/what_is_scss.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2247/files/audiology_science_to_practice_3rd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/6890/0006/files/ration_card_affidavit_format_in_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0433/9718/5701/files/amana_microwave_parts.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/tibisiwafule.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56751463133.pdf
    • https://cdn.shopify.com/s/files/1/0438/8726/3899/files/54346533335.pdf
    • https://cdn.shopify.com/s/files/1/0440/2737/9877/files/5707580453.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_off00005f55.bin
083f7b89b5f264eefd096f158d3e8f1edb01039763a23608e391d9ff67edf244		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F55 4780 bytes
font_01_sfnt_off00006faa.bin
9bac4ae855705f1cc082d84156bb94ddc5dc5fb50237a056b47ec73b853c1cff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAA 10836 bytes

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