Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cde646127e48c2c…

MALICIOUS

PDF

38.7 KB Created: 2020-08-18 15:10:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 528d41a894b6517e402b2ca5fa387d1a SHA-1: 3bd16ea73628ebab6528665e81772086c3d65518 SHA-256: 4cde646127e48c2c5b5629393db444fc11bdb792265c6160f3a7ea4216d63d5d
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 PDF files hosted on Shopify. One of the primary links, however, leads to a known malicious redirector at 'ttraff.ru'. This suggests a phishing or scam attempt designed to lead users to malicious content, potentially for credential harvesting or malware distribution.

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.ru/pify?keyword=beyond+compare++32+bit
    • http://files.fleetojesus.org/uploads/1/3/0/8/130874526/4ee9140.pdf
    • http://files.solfiyah.com/uploads/1/3/2/6/132695629/zemugosimop.pdf
    • http://pebegi.bigelementrecords.com/uploads/1/3/1/4/131453249/4533653.pdf
    • http://dokon.finewillrockthehouse.com/uploads/1/3/2/7/132741194/e7ce06e047e.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/sidago.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/basemi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/generac_5000_watt_generator_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/gadote.pdf
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/morfologi_carica_papaya.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/ponegera.pdf
    • https://cdn.shopify.com/s/files/1/0429/1634/8057/files/duzebakufunatapirudupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/piketatomuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/79817774308.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/bakikupofumewaw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7460/0598/files/95368714028.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/popetevamatikono.pdf
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/bryophytes_reproduction.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_off00005835.bin
ec75fadc0dd9af65943bfce85a3da7f2c4965d9d6556cf771a52ea691b920464		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5835 5596 bytes
font_01_sfnt_off00006b22.bin
0e48a34b91c0aa51e52694e4c3aaa2dfb7b125d005e2d2ece3eb23692aef7814		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B22 10068 bytes

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