Malicious PDF — malware analysis report

Static analysis result for SHA-256 a79e25b1e8c42e1b…

MALICIOUS

PDF

44.4 KB Created: 2020-08-02 10:23:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 751e0fe5506180afbebe78f4cb3fd5c1 SHA-1: eee07a1a27f50540f653839b855505e7ee91f5f4 SHA-256: a79e25b1e8c42e1bdfba681bbe4c076c3dedda25e320da1baa909080139c3dd4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs users to a malicious redirector, ttraff.cc, with a lure related to a "PS3 emulator for mac". This suggests a phishing or scam attempt to drive traffic to malicious infrastructure. No scripts were extracted, limiting the analysis of direct payload delivery.

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=ps3+emulator+for+mac
    • http://files.caraleemath.com/uploads/1/3/1/4/131453221/xejef-xapavugetedozop-datexanilifimom.pdf
    • http://files.shopteambros.com/uploads/1/3/1/3/131398406/finorim_tojorawax_jasud.pdf
    • http://files.vesnazidovec.com/uploads/1/3/1/3/131383665/tigozapobazuwamat.pdf
    • http://files.thebeautybarracuda.com/uploads/1/3/0/7/130739163/runobabadi_lujazuxexilere_labolakarenev.pdf
    • http://files.techniquemma.com/uploads/1/3/0/7/130776611/mifamilerej.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/xibovaji.pdf
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/sujoxeweveresiwogobivu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2096/6298/files/wokovudiwivasuwofokekodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/24578480579.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golizikedakumeru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5578033559.pdf
    • https://cdn.shopify.com/s/files/1/0434/1317/6469/files/nujikarumimisokivif.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/91572473742.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20424522606.pdf
    • https://cdn.shopify.com/s/files/1/0435/6754/6527/files/kidavazanulivam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/jisuvapovunirovifoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0920/files/53984055327.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/how_to_advertise_your_discord_server.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_off00006ffc.bin
84bb2add5015ba811fdf6e7cce11549cdb9a0da9022da0341200941abc94b5fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FFC 5192 bytes
font_01_sfnt_off00008190.bin
9ffbeafc9996c6dc43f98d19248710e13c12fcde27f19419cd808a21c01fb36f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8190 10128 bytes