Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ce8955c4e443ba4…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 14:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73f6cbe46ebd8897147a413ba31073e3 SHA-1: e2921c7bd779c6cbd926ed1df18419c583bc9c0d SHA-256: 1ce8955c4e443ba44b90e86bae32227ddb0bbb50e294da7e583112662e692e85
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to 'advantages and disadvantages of social media pdf'. The primary malicious URL, https://ttraff.com/pify?keyword=advantages+and+disadvantages+of+social+media+pdf, is used to redirect the user to other potentially malicious content. The presence of a link farm indicates an attempt to manipulate search engine results or distribute malicious content broadly.

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=advantages+and+disadvantages+of+social+media+pdf
    • http://dovowefer.compliancevp.com/uploads/1/3/1/8/131871699/bonigodaje.pdf
    • http://files.profeditenglishservices.com/uploads/1/3/1/4/131407089/9e02e2.pdf
    • http://files.truthsin.org/uploads/1/3/1/6/131636923/mosedawofugun_pupogegebetij_mivasiji_vugas.pdf
    • http://kilazafi.valeriegriffinrece.com/uploads/1/3/1/4/131453540/4869676.pdf
    • https://cdn.shopify.com/s/files/1/0433/4937/7174/files/kikewusuvipolifamuxapem.pdf
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/kubibexol.pdf
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/60717640236.pdf
    • https://cdn.shopify.com/s/files/1/0431/0689/3985/files/bogatefuleziz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/88806778739.pdf
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/types_of_advertising_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0433/0048/7332/files/fexuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/1117/7639/files/clicker_hero_hack.pdf
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/xikowasenefujofabu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1998/5319/files/nalaxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/4659/1903/files/equidad_de_genero_libro.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_off000064ac.bin
bf009a1b9777ecb6885ee2629bb863ee47ffa0731593855aa9243ba85691a54b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64AC 5428 bytes
font_01_sfnt_off00007728.bin
c68122614d8dc7c949d261ab6356dfcfe9e961832f2636c925be14aba2e68512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7728 10388 bytes

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