Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcea5d7c096909e0…

MALICIOUS

PDF

43.6 KB Created: 2020-08-13 01:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 500dcca90f8d0ec14ed146687b266a42 SHA-1: fac4ac6a146eb233264c24733dd3c91edf7bc990 SHA-256: bcea5d7c096909e0712838792e9b1f8b3a87c3d01f2c1d46ddb9f66fcfdc8fa8
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Pemex business plan 2020 pdf' and the malicious URL 'https://ttraff.ru/pify?keyword=pemex+business+plan+2020+pdf'. This suggests a phishing or social engineering lure to direct users to malicious infrastructure.

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=pemex+business+plan+2020+pdf
    • http://files.harmonlab.org/uploads/1/3/2/8/132815298/tikes-gogiduziloxaz.pdf
    • http://files.creamwoodlabradors.co.uk/uploads/1/3/0/8/130814902/6069038.pdf
    • http://golilari.acause2travel.org/uploads/1/3/0/8/130874250/kibume.pdf
    • https://cdn.shopify.com/s/files/1/0436/6345/8457/files/26379209599.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/84358412667.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1509/files/aushadhi_vanaspati_project_in_marathi_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/barepezazujoxodurovid.pdf
    • https://cdn.shopify.com/s/files/1/0436/5982/1209/files/88001830218.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/93710440410.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/9842229493.pdf
    • https://cdn.shopify.com/s/files/1/0437/3282/8314/files/50840308211.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/41272661248.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/cerere_card_european_de_sanatate_2020.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/
    • https://cdn.shopify.com/s/files/1/04

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b42.bin
c5128580f1c428ba78e07697536368072fe65191d84ecd12279bc24f8a831d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B42 5572 bytes
font_01_sfnt_off00007e21.bin
91b757e6df86629ba3c88305bda15fb717fbd661e3d30ea99d78c981dc8ac397		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E21 10332 bytes

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