Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f50674f80698df0…

MALICIOUS

PDF

59.7 KB Created: 2020-08-04 04:27:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67da04f26445cf446692a0644ab26a3e SHA-1: 17663fee100b8c69b61bbe2a661a9882e69f7151 SHA-256: 1f50674f80698df048011521eb2813228345388812130671a75dc72033d1469b
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate PDF downloads, but the primary link redirects to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and other URLs that are part of the link farm. This indicates a social engineering attempt to trick the user into visiting a malicious site.

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=third+law+of+thermodynamics+pdf+download
    • http://files.ucdlayinghenassessment.com/uploads/1/3/0/7/130739519/6909074.pdf
    • http://files.workingdogo.com/uploads/1/3/1/4/131406558/zexekawemilu.pdf
    • http://files.staceyharris.co.nz/uploads/1/3/1/4/131454389/1c67219473b9b.pdf
    • http://files.bankfarmlleyn.co.uk/uploads/1/3/1/6/131637362/waxonumexuxovum.pdf
    • http://files.dulcineaquartet.com/uploads/1/3/0/7/130739974/lusubuka.pdf
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/64046299590.pdf
    • https://cdn.shopify.com/s/files/1/0437/1267/5990/files/627305083.pdf
    • https://cdn.shopify.com/s/files/1/0431/1249/7313/files/bojarefisemituwewosalala.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/dibusefado.pdf
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/kumojovofopasitasizad.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7904/files/35451295905.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/digital_agenda_in_the_europe_2020_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0448/2488/7456/files/tutorialspoint_c_programming_version.pdf
    • https://cdn.shopify.com/s/files/1/0434/8755/9833/files/zatitaxuwajimijof.pdf
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/bawigazokapuvimumunipinu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/yandere_simulator_controls.pdf
    • https://cdn.shopify.com/s/files/1/0427/9028/9574/files/keroximuxukenik.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_off0000916a.bin
32e9b749c4d42fdc59a6124b8044091ba93d25401bfb3dae0be8b73e8cbe5a5e
pdf-font-stream PDF embedded font (sfnt) at offset 0x916A 5540 bytes
font_01_sfnt_off0000a42d.bin
d0b6fa7c1f0bbb834956cd250ceac949335ce03fac8c7594f2d5c96fb30b43d8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA42D 11832 bytes
font_02_sfnt_off0000ccca.bin
28c03bcf599e3456f71dbda7a9940e8017c4b7a6e15fdbd9d4eba8bfcd1a11e4
pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCA 16064 bytes