Malicious PDF — malware analysis report

Static analysis result for SHA-256 96fbfe92418a452a…

MALICIOUS

PDF

40.5 KB Created: 2020-08-11 05:27:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c9feffc9848c740202e6fabffc81a21 SHA-1: beedf3fc94a316068b94239b6589a56c84be8d64 SHA-256: 96fbfe92418a452a11162b9e7339d24c81baff7282e40afaf36f33576e8fbd2c
130 Risk Score

Malware Insights

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

The PDF file contains embedded links that lead to a redirector hosted on 'ttraff.cc'. The document body text, though partially corrupted, suggests a lure related to a 'simple cash receipt template pdf'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirection to known malicious infrastructure. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, many hosted on Shopify, likely to improve search engine ranking for malicious content.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=simple%20cash%20receipt%20template%20pdf
    • http://files.karoogravelgrinder.com/uploads/1/3/1/8/131857140/1743579.pdf
    • http://wotasiv.msdressersclass.com/uploads/1/3/1/4/131453060/6477587.pdf
    • http://files.canineandequineranch.org/uploads/1/3/0/8/130813458/548cd8167a6.pdf
    • https://cdn.shopify.com/s/files/1/0434/0803/1893/files/45607190064.pdf
    • https://cdn.shopify.com/s/files/1/0438/2385/7824/files/nixananawikolonuxato.pdf
    • https://cdn.shopify.com/s/files/1/0431/8072/0285/files/89168541290.pdf
    • https://cdn.shopify.com/s/files/1/0427/6820/3942/files/jarodoxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5891/files/programa_arquitectonico_de_un_restaurante.pdf
    • https://cdn.shopify.com/s/files/1/0430/8392/3609/files/rutinas_de_gym_para_aumentar_masa_muscular_hombres.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/elemento_quimico_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/anemia_drepanocitica_en_embarazo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/40330164471.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/musomizegolujepitifid.pdf
    • https://cdn.shopify.com/s/files/1/0439/9097/4622/files/pc_miler_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0438/1097/9997/files/17266397605.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/1/0431/8072/0285

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c2.bin
95f82274c3e968c759b63f04c4ce41de96d43cde7d27dad9ebf798d54bc8fd65
pdf-font-stream PDF embedded font (sfnt) at offset 0x61C2 5500 bytes
font_01_sfnt_off00007442.bin
5d48dcdee583be4b3dde8efb35529d64b9f0b8d2c5292f6e76981d06c9174d68
pdf-font-stream PDF embedded font (sfnt) at offset 0x7442 9548 bytes