Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d2d3c0109408f0…

MALICIOUS

PDF

52.8 KB Created: 2020-08-31 02:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47c4a64c59baf61705d72c9679fc0d48 SHA-1: 41136a46586e6b395e9f743950986702eedd2a37 SHA-256: 32d2d3c0109408f0fe4506831c8705cc770954aaa75aa419afe0c5bda3548c61
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wix?keyword=simple+quadratic+equation+examples+w'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary purpose is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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/wix?keyword=simple+quadratic+equation+examples+w
    • https://cdn.shopify.com/s/files/1/0437/3898/8709/files/debivufapawepabitixog.pdf
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/janapudadumudozenekada.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6724/files/69701082498.pdf
    • https://static.usrfiles.com/ugd/234f58_1f162feebf5c4bf7aac7d8853640b41d.pdf
    • https://static.usrfiles.com/ugd/7603ae_1bca8ca554df48b89c61d2bd5b909227.pdf
    • https://static.usrfiles.com/ugd/b8c837_d0a240b999dd4962a9aaa97d70bbd310.pdf
    • https://static.usrfiles.com/ugd/4725f1_71f4dd5ac43a4714af65fe28960f1de3.pdf
    • https://static.usrfiles.com/ugd/b8c837_c8248b4693e04bb9804f58e2321b17a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_b40ca334f3f34c06ae4f96d28985702b.pdf
    • https://static.usrfiles.com/ugd/b8c837_ada084d37453491c81c6fd609163feab.pdf
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/ergonomics_furniture_design.pdf
    • https://cdn.shopify.com/s/files/1/0438/3706/3328/files/2017_dodge_caravan_owner_s_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6264/files/ambassadors_of_christ_kwetu_pazuri_song.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/63365881879.pdf
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/97459566606.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://static.usrfiles.com/ugd/b8c837_ada084d37453491c81c6fd609163feab

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e47.bin
696c266148afbf1d6ed984c6c1a9771a1b0bd42fbb8a47f1029ba55b80eb627a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E47 5608 bytes
font_01_sfnt_off00008148.bin
e9666b21680725359f140d81609e084af0575b7e5aea3277466ada667766241b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8148 15240 bytes
font_02_sfnt_off0000b0c9.bin
b1a3814281e3be6a3bd082053488c6799f721303c28064e7b4afa94c252733b7
pdf-font-stream PDF embedded font (sfnt) at offset 0xB0C9 16088 bytes