Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d422a3226d02be6…

MALICIOUS

PDF

39.4 KB Created: 2020-08-15 03:34:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 442305c8bed514cdf6c50a2085255d86 SHA-1: 43d5ea6fc3b129a342e33c42fff0bdcf2feee771 SHA-256: 1d422a3226d02be6c674411ce725820431f8ec09df6b67b757d78da26d9d767e
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links, https://ttraff.cc/pify?keyword=ingenuity+rocking+bassinet+sheets, is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this malicious URL, suggesting the primary intent 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.cc/pify?keyword=ingenuity+rocking+bassinet+sheets
    • http://files.brgri.org/uploads/1/3/1/4/131483067/7e38aa06f9a0d34.pdf
    • http://files.polarustravel.com/uploads/1/3/2/3/132302816/4169459.pdf
    • http://files.labelleboutiquenyc.com/uploads/1/3/1/4/131405948/solawepixonafo.pdf
    • http://futalelo.vreist-slimportfolio.com/uploads/1/3/1/6/131637881/fisanulom-lobaz-balixepav.pdf
    • http://files.mybotoxboutique.com/uploads/1/3/0/9/130969572/xafoxavuza_jozijunepap_bikufewuxuzidig_retenolakamaje.pdf
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/toastmasters_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/punefafiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/6405/6225/files/pizutolosakewidirumi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4373/files/kizekepisotuzomejolile.pdf
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/77150324011.pdf
    • https://cdn.shopify.com/s/files/1/0436/1561/7182/files/21335974918.pdf
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/litolagilixiwot.pdf
    • https://cdn.shopify.com/s/files/1/0437/3377/8597/files/xilobogegesatu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1184/files/86776030225.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5460/files/15247609104.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/sokexogugen.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/selelimefobovonarafudota.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/jifozojatikonasorinumipo.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_off00005ae9.bin
cc3c8f6b84a74119eda1cbd4366cb48ac66b69818894681030ded5b2d2548c0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE9 5272 bytes
font_01_sfnt_off00006cdb.bin
e092cc5acd5dc1cc4e75d97cb975b2ce0197b469726f3b118762dd0c30f895b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDB 10408 bytes