Malicious PDF — malware analysis report

Static analysis result for SHA-256 4980d94e3572e909…

MALICIOUS

PDF

61.0 KB Created: 2020-08-23 15:28:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bca3008824d6079947c9a5622c7642f SHA-1: 9ee21eb8de673868392d3974054401d4b592812e SHA-256: 4980d94e3572e90978d9a85de4dafa2ab7757d4082d8f7e167c5255285574223
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link leads to a known malicious redirector. The document body contains a call-to-action phrase, suggesting a lure to click the embedded malicious link. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=gmaps++for+pc
    • http://files.singaporeaerosupportservices.com/uploads/1/3/0/8/130873715/pitenutivu-salibi-nasobakod.pdf
    • http://rafef.jerseysoftball.com/uploads/1/3/1/1/131164127/3680724.pdf
    • http://files.libyauprisingarchive.com/uploads/1/3/1/0/131070702/2710dc400ed0a.pdf
    • https://cdn.shopify.com/s/files/1/0436/1617/4237/files/cms_1500_fillable.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/memexupimokevakex.pdf
    • https://cdn.shopify.com/s/files/1/0431/2560/4513/files/11415198355.pdf
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/24646291952.pdf
    • https://cdn.shopify.com/s/files/1/0462/1248/1177/files/tupezebeke.pdf
    • https://cdn.shopify.com/s/files/1/0439/9074/5246/files/arnold_press_form_bodybuilding.pdf
    • https://cdn.shopify.com/s/files/1/0433/9856/1957/files/certificado_medico_sector_salud.pdf
    • https://cdn.shopify.com/s/files/1/0433/8833/8330/files/pixelmon_give_master_ball.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/tolikanuvorugegotujedis.pdf
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/tofedoxiveligajixuped.pdf
    • https://cdn.shopify.com/s/files/1/0438/8257/8088/files/lisulevijinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4352/0666/files/mokopisodasibewemuzazuto.pdf
    • https://cdn.shopify.com/s/files/1/0436/5022/0185/files/51610227486.pdf
    • https://cdn.shopify.com/s/files/1/0435/4254/4533/files/bojipuwilizopedez.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_off0000a7ca.bin
9f599815522e53bb7ffe999b22277d71f213ba102ebabb4c67368afbc3df23d4
pdf-font-stream PDF embedded font (sfnt) at offset 0xA7CA 5160 bytes
font_01_sfnt_off0000b93b.bin
a03c11a2f4a90f43e6369c11b8c8ef0831f5ce93ae83c21a2cd94a35b18c6270
pdf-font-stream PDF embedded font (sfnt) at offset 0xB93B 14804 bytes