Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a80df35880d1ad4…

MALICIOUS

PDF

92.6 KB Created: 2020-08-01 05:57:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b1c0c63659cdb0aa7890ce42ed818c8 SHA-1: afa2eac8c4a459f2ce84a9799d01e305f03df223 SHA-256: 2a80df35880d1ad41147b5eff483775f3a5d6e8e60860aa771eabaeab612783e
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=yugioh+gx+episode+list'. This URL is presented within the document body, disguised as a search result. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. No scripts were extracted from this sample.

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=yugioh+gx+episode+list
    • http://files.royalcapitalholdings.net/uploads/1/3/1/4/131484328/1770359.pdf
    • http://files.mindbodymovementarts.com/uploads/1/3/0/9/130969440/zefagak.pdf
    • http://files.centre5pinbowl.ca/uploads/1/3/1/3/131398583/tuwawolomegi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8305/4757/files/19181578696.pdf
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/46460888698.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5823/files/tobisojolivurotapuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/0602/4090/files/xejevogotuwez.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12086745869.pdf
    • https://cdn.shopify.com/s/files/1/0431/3631/9637/files/wubojefizorigaza.pdf
    • https://cdn.shopify.com/s/files/1/0428/2132/0870/files/zunawojepivalulosuwip.pdf
    • https://cdn.shopify.com/s/files/1/0433/5324/3816/files/13162111581.pdf
    • https://cdn.shopify.com/s/files/1/0435/5493/0839/files/97857603664.pdf
    • https://cdn.shopify.com/s/files/1/0435/2511/1972/files/14522157645.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/4522263492.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/64252445540.pdf
    • https://cdn.shopify.com/s/files/1/0432/2584/1821/files/79400690697.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000de83.bin
70b6eecbc3f06b6f8b43137013dc674ff49308e031e44e1f270c2c7bbabcb8cf
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xDE83 16336 bytes
font_01_sfnt_off0001133d.bin
8cf05db7c2dd85818eefc4f8e5ec113376a4a67ab0663ee99865a42e675c7ec1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1133D 4720 bytes
font_02_sfnt_off00012362.bin
31ab86e678f22d83efd6acf47e44b7903cf4507bf21b183db8fad66ba09e199f
pdf-font-stream PDF embedded font (sfnt) at offset 0x12362 17224 bytes
font_03_sfnt_off00015720.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x15720 4324 bytes