Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b64e1a2cbea2bab…

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 14:33:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8683e3eec6f6f348278d6a795b2abfe9 SHA-1: 7c48bbf27aef249bb9492b38590ac10cf1297d41 SHA-256: 9b64e1a2cbea2babf6b5a49f0d2921544c147986cf09c64673d812f08659b82f
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a free ebook download, but the primary link redirects to a malicious URL (https://ttraff.cc/pify?keyword=digital+marketing+ebook+pdf+free). This indicates a social engineering attack aiming to redirect users to malicious infrastructure. The PDF structure and embedded links suggest a link farm technique to obscure the malicious destination.

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=digital+marketing+ebook+pdf+free
    • http://files.missjordansclassroom.com/uploads/1/3/0/7/130776841/5406440.pdf
    • http://files.raingirlphotos.com/uploads/1/3/1/4/131437930/782cc0.pdf
    • https://cdn.shopify.com/s/files/1/0461/9999/6569/files/bitijisebawusobemotafedu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9284/4448/files/resalemurajovuritefuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/bulajezofa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9393/4748/files/antiquities_act_1975.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/36194295400.pdf
    • https://cdn.shopify.com/s/files/1/0441/0913/6024/files/zurako.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riginijulu.pdf
    • https://cdn.shopify.com/s/files/1/0428/2171/4079/files/6711520799.pdf
    • https://cdn.shopify.com/s/files/1/0430/6570/4602/files/fauda_imdb_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/6857/1299/files/tipos_de_acretismo_placentario.pdf
    • https://cdn.shopify.com/s/files/1/0437/0802/2938/files/zapupim.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/wufaleteru.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_off0000661d.bin
e2aff1cbe9361ed2ad5f02ee6283f4fe51526aee9e216e29274542a3d95966c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x661D 5388 bytes
font_01_sfnt_off00007855.bin
b84e1e06f8a762306b1bb401e5c346488628de0400de506755a6da886b79c437
pdf-font-stream PDF embedded font (sfnt) at offset 0x7855 10360 bytes