Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b96d36be5223e26…

MALICIOUS

PDF

35.4 KB Created: 2020-08-15 20:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6975e8c0310e23e6059e18cbcdde9457 SHA-1: 617cdba35a321ae4357eb4f31e0139a959ea901b SHA-256: 2b96d36be5223e262f58e6d00aa00dfd0c24087a767dbef24967896ccefaf84c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links, 'https://ttraff.cc/wb?keyword=leather%20manual%20swivel%20recliner%20with%20ottoman', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to redirect users to malicious infrastructure. The presence of a link farm and a malicious redirector indicates a phishing or scam attempt.

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/wb?keyword=leather%20manual%20swivel%20recliner%20with%20ottoman
    • http://majim.sdgphoto.net/uploads/1/3/1/0/131070611/bileluvene.pdf
    • http://files.themillbrookhunt.com/uploads/1/3/0/7/130775310/81dddff.pdf
    • http://files.tlcvegan.com/uploads/1/3/0/7/130776486/7313623.pdf
    • http://radaguguf.juliettehuber.com/uploads/1/3/1/0/131070872/ponikizavisi_lesufexolesumo_kasosimeguza.pdf
    • https://cdn.shopify.com/s/files/1/0427/9782/6207/files/kapoxisefifenaberosejon.pdf
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/vupiwefedugapamuxub.pdf
    • https://cdn.shopify.com/s/files/1/0438/3683/3952/files/arboles_bonsai_cuidados.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28664871254.pdf
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/latisapofudutok.pdf
    • https://cdn.shopify.com/s/files/1/0436/9167/1705/files/33516948443.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9509/files/gukozuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/3562/1526/files/5362545504.pdf
    • https://cdn.shopify.com/s/files/1/0429/7487/1715/files/estilo_de_aprendizaje_activo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/nurinebazatexiji.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/muwud.pdf
    • https://cdn.shopify.com/s/files/1/0433/5045/8526/files/tovukamujazejisavofab.pdf
    • https://cdn.shopify.com/s/files/1/0429/4659/2924/files/60836397564.pdf
    • https://cdn.shopify.com/s/files/1/0432/9914/3838/files/35344500068.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_off00004d6d.bin
40dc2d3930fca38953d1f4fcccbfb7b010f83d9678af7b3d612d6db961a9fb5f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4D6D 5132 bytes
font_01_sfnt_off00005ecb.bin
58d2c424f27c87061953559bef915918a1e253ce47c2eb46065c96811f388248
pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECB 9932 bytes