Malicious PDF — malware analysis report

Static analysis result for SHA-256 da2f490fac012711…

MALICIOUS

PDF

50.9 KB Created: 2020-09-02 03:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67a299616fc885fc5523436dfbf44619 SHA-1: 3eac7faef7531fd7ba93343284fbe49e69c18763 SHA-256: da2f490fac012711a86ead37e28f4ecf44a28ecba1d299b8eddb8b2ff8fbd40b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text referencing 'Sbi exam syllabus 2018 pdf' and includes the malicious URL 'https://ttraff.me/wix?keyword=sbi+exam+syllabus+2018+pdf'. This suggests a 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.me/wix?keyword=sbi+exam+syllabus+2018+pdf
    • https://cdn.shopify.com/s/files/1/0432/6876/7912/files/mukazekarizovif.pdf
    • https://cdn.shopify.com/s/files/1/0437/7405/0458/files/31014178915.pdf
    • https://cdn.shopify.com/s/files/1/0432/1624/0807/files/jarinavadafexekak.pdf
    • https://cdn.shopify.com/s/files/1/0448/0850/3456/files/denufigelazibanijem.pdf
    • https://cdn.shopify.com/s/files/1/0436/4461/6864/files/44170915799.pdf
    • https://static.usrfiles.com/ugd/a43ec6_2d3ce00fe71a41e595bd70be5d3739b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c0d15a98e73a46568002f219140aba0e.pdf
    • https://static.usrfiles.com/ugd/e5412a_7dfc1e5733f646049bb2db7290c606bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_64705baa84e54f04aaef17b344e24764.pdf
    • https://static.usrfiles.com/ugd/f55bec_822d0d0c73cb45bfb6c229634fcfc929.pdf
    • https://static.usrfiles.com/ugd/f46427_b6f1ff71a44041d7bb3d664505992a90.pdf
    • https://static.usrfiles.com/ugd/b8c837_58c7cd9e7fb84697a096215b1eac9c71.pdf
    • https://static.usrfiles.com/ugd/ee6770_9fc8e211a7bb41268019f09ce49e3e0c.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_off00007b68.bin
73aec88ba1bd28277f735a1e12d50089a3f12c4ebf83f03a527680408987dda5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B68 6024 bytes
font_01_sfnt_off00008fe8.bin
89f7a1231533faa815b65ab2bcce54179bc0216f0feabc30de5b2bc695bd37ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE8 10224 bytes
font_02_sfnt_off0000b2f7.bin
ab0b30550c16f0218ea180a56450acc25083be48fb805cb0f6f475dfa13b8319
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2F7 2832 bytes