Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5087b1e9f19f724…

MALICIOUS

PDF

43.3 KB Created: 2020-07-26 15:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b669284879b2df5cd070fc381265067 SHA-1: b7ecb330fe23e7abb9654148b443e6fae06eb77b SHA-256: b5087b1e9f19f724f5fa81cec5d99ad2a53752a596660077e213f99935c79def
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 a link farm hosted on cdn.shopify.com. One of the primary links redirects to a known malicious infrastructure at ttraff.cc. This indicates a phishing or social engineering attempt to lure users to a malicious site.

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=tattling%20vs%20telling%20worksheets%20pdf
    • http://files.tavernegoudenpunt.be/uploads/1/3/2/6/132681194/dasagozunonapodeve.pdf
    • http://files.mrbalint.com/uploads/1/3/1/4/131452804/8805803.pdf
    • http://files.bluecactuspoolservice.com/uploads/1/3/1/8/131857114/tunuzovu.pdf
    • http://files.justinteisl.com/uploads/1/3/0/8/130814066/7203735.pdf
    • http://files.javasisters.com/uploads/1/3/1/3/131379324/xikifudarolowi-lazugudojoga-jofedi.pdf
    • http://files.bluecactuspoolservice.com/uploads/1/3/1/8/131857114/tunuz
    • https://cdn.shopify.com/s/files/1/0430/4686/2997/files/gaguxijagiwerodilupox.pdf
    • https://cdn.shopify.com/s/files/1/0430/3182/2485/files/pasod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/dajizutizosik.pdf
    • https://cdn.shopify.com/s/files/1/0437/3030/5175/files/dadaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/vorojitopizalufelola.pdf
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/vibipum.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/10588857949.pdf
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/makefimo.pdf
    • https://cdn.shopify.com/s/files/1/0440/6237/6101/files/69274181349.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/luvutalanopijomakel.pdf
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/14812384597.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gubiwunezekubukezo.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/setamurebedaxovu.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_off00006c06.bin
df7038f3da156a006e8b9298a67e2882b08260c6b334dc1dc6c6082d6110ca17
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C06 5256 bytes
font_01_sfnt_off00007dec.bin
02408738ccdcfec27a63d6ad3e66ec82f662115384fa8b4a8ebc94d96162fe1f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEC 9884 bytes