Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf09a36fda6bd462…

MALICIOUS

PDF

42.7 KB Created: 2020-08-08 18:13:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fee3eb266a0a33b9b640e993e93edb0 SHA-1: dfa8cc9e969a834ee436cd0bb815ab99ddc06351 SHA-256: bf09a36fda6bd462f951b7524d1b5e2f2441bb34a1bf581be4ddce2daf9392bc
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to external resources, a technique often used for SEO poisoning or to redirect users to malicious sites. The primary link, 'https://ttraff.com/pify?keyword=mediatriz+bisectriz+mediana+y+altura+pdf', is flagged as a malicious redirector. This suggests the document's purpose is to lure the user into clicking the link, leading them to a compromised or malicious website.

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.com/pify?keyword=mediatriz+bisectriz+mediana+y+altura+pdf
    • http://files.femaleilluminati.com/uploads/1/3/0/7/130775484/vilididado-wixir-mapedeza.pdf
    • http://files.revivetheroxy.org/uploads/1/3/1/8/131871984/lugogipudufat.pdf
    • http://bobuvevo.thelookingglassesthetic.com/uploads/1/3/0/8/130874474/wejenixujili.pdf
    • http://files.greenbrierhistorical.org/uploads/1/3/2/8/132815220/jagovirimeko.pdf
    • http://files.slytactraining.com/uploads/1/3/2/7/132712332/49eb7d0aaa4f.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/80224177683.pdf
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/free_acoustic_guitar_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/puxoved.pdf
    • https://cdn.shopify.com/s/files/1/0428/1712/6567/files/97717100655.pdf
    • https://cdn.shopify.com/s/files/1/0441/1519/8104/files/maths_problem_solving_activities.pdf
    • https://cdn.shopify.com/s/files/1/0441/0372/9304/files/lusuta.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/worship_songs_list.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/50971407729.pdf
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/xekaliramobe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0964/files/empire_earth_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/6183/0037/files/calculus_textbook_10e.pdf
    • https://cdn.shopify.com/s/files/1/0440/8947/5237/files/maveferavu.pdf
    • https://cdn.shopify.com/s/files/1/0428/8197/4435/files/30972154749.pdf
    • https://cdn.shopify.com/s/files/1/0434/0459/1271/files/wawumevemafudubox.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_off000064b2.bin
aca2f15e369df3d729c01339d66f976b615d719c8b374a246e737a5759988c49
pdf-font-stream PDF embedded font (sfnt) at offset 0x64B2 5600 bytes
font_01_sfnt_off000077bc.bin
34843fcdbdbde3deda07d8330125e41ff068c4ce49c2852732485ec71d4eccdc
pdf-font-stream PDF embedded font (sfnt) at offset 0x77BC 11160 bytes