Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e3b6ee263ceeeb…

MALICIOUS

PDF

34.3 KB Created: 2020-08-20 07:37:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87f842b6a323abeeddcd6852fdb8df75 SHA-1: 44ff3748a1c7d0d9852af6b2dbda357417515cf0 SHA-256: c4e3b6ee263ceeeb781b6defb23d3adf0b619167c21c7b70198d70efdee53eea
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a lure for 'macbook air open spreadsheet'. This link points to 'ttraff.cc', a known malicious redirector. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm used for SEO poisoning or to obscure the final malicious destination. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may be intended to trick the user into believing they need a password to access content, a common tactic in phishing or malware delivery.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=macbook+air+open+spreadsheet
    • http://files.2ndchanceapartment.com/uploads/1/3/1/6/131606186/29c93.pdf
    • http://jojem.neisdoap.net/uploads/1/3/0/7/130739964/7176782.pdf
    • http://files.naturallywylde.com.au/uploads/1/3/1/6/131637257/surerupovig_bexidafok_fefisa_jowurimimi.pdf
    • http://josen.domeckynastromech.cz/uploads/1/3/2/7/132710780/b2e09fe6ab.pdf
    • https://cdn.shopify.com/s/files/1/0439/1400/2587/files/adobe_photoshop_cs5_tutorial_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0428/9232/9116/files/27061468818.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/35893464703.pdf
    • https://cdn.shopify.com/s/files/1/0463/4925/4817/files/zujoxosesudoguvol.pdf
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/miseresaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/6934/9794/files/87467785578.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/navevesilerux.pdf
    • https://cdn.shopify.com/s/files/1/0428/1214/5830/files/15448594686.pdf
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/rezedulukudeketo.pdf
    • https://cdn.shopify.com/s/files/1/0448/1361/5264/files/surah_yaseen_al_kalam.pdf
    • https://cdn.shopify.com/s/files/1/0430/1435/7145/files/jirolelom.pdf
    • https://cdn.shopify.com/s/files/1/0431/9127/1586/files/barclays_online_statement.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_off00004836.bin
a76e120bc0674bcc77db152ae76d10ea8d508dd775be967357eaee875c6e940a
pdf-font-stream PDF embedded font (sfnt) at offset 0x4836 5336 bytes
font_01_sfnt_off00005a46.bin
f17a662675368050009577b7046b0e433cd3846c9182c00998461d12feadbd2e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A46 10096 bytes