Malicious PDF — malware analysis report

Static analysis result for SHA-256 b526f3e3a9221c1d…

MALICIOUS

PDF

68.9 KB Created: 2020-08-10 15:08:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: adbbbba5f444ab538c4508fd2bd402e1 SHA-1: 45607568ad9383cd91fc6884fbf87d4726837813 SHA-256: b526f3e3a9221c1de098c3e9594d2e6af926630d8c148d3ed327b765a88b470d
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a translation of the Atharva Veda. The document body and heuristics indicate a lure to external content. The ML classifier strongly supports a malicious classification. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=atharva+veda+english+translation+pdf
    • http://lujojet.badcats.smifh.com/uploads/1/3/0/9/130969656/gipogizopolipav_verakudikunofa.pdf
    • http://files.brendatobyphotography.com/uploads/1/3/2/3/132302921/radukobuzodu_wizinuf_duzut_sidupizigara.pdf
    • http://files.hannesmarais.com/uploads/1/3/0/7/130738915/8feb47bad20a624.pdf
    • https://cdn.shopify.com/s/files/1/0435/2661/9287/files/kakavumixinoxedod.pdf
    • https://cdn.shopify.com/s/files/1/0435/1872/2216/files/a_concise_introduction_to_matlab.pdf
    • https://cdn.shopify.com/s/files/1/0428/6827/7415/files/waxiwosabofibitewag.pdf
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/serawo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7203/5739/files/fundamentals_of_engineering_economics_3rd_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/bunufiwiritululavujaduk.pdf
    • https://cdn.shopify.com/s/files/1/0434/0885/1098/files/netusar.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/git_pull_branch.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6910/files/mozemowaxerifidafu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/giwuresakizo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/76917266793.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://cdn.shopify.com/s/files

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c09c.bin
fa9308a9aa7733ede493449c17be6b688adfd58b885998a637adf316f0091cfe
pdf-font-stream PDF embedded font (sfnt) at offset 0xC09C 5352 bytes
font_01_sfnt_off0000d2d3.bin
82d1e1f8fc5ea7e56cb06b8a67b3e214e80fa12ada3869324048e02d2bca00cd
pdf-font-stream PDF embedded font (sfnt) at offset 0xD2D3 11604 bytes
font_02_sfnt_off0000f7f9.bin
97ed6d9ed157dfb1ffa8cdb352f6e91f0c87cac859b8ac8b677816828962cae7
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F9 3584 bytes