Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef1c2ee8b9ab2f1f…

MALICIOUS

PDF

40.6 KB Created: 2020-09-13 11:55:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 549fb6f6c4b767b3e4010d6847e1b995 SHA-1: 283667aa01c3a1d082b801b51626364ed3ba419d SHA-256: ef1c2ee8b9ab2f1f37d04746af2329735f71516367701dddfe4be4b0a00a982d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=witcher+3+djinn+guide'. This URL is presented within the document's body, disguised as a game guide, to entice users to click. The file also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify, likely for SEO manipulation or to obscure the malicious destination. 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.me/wix?keyword=witcher+3+djinn+guide
    • https://cdn.shopify.com/s/files/1/0437/4642/7031/files/badland_brawl_android.pdf
    • https://cdn.shopify.com/s/files/1/0432/7564/9180/files/turnitin_originality_report_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/2108/0475/files/inotropic_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0431/4054/6714/files/6261835028.pdf
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/jibokibipemetigixafakuzin.pdf
    • https://cdn.shopify.com/s/files/1/0433/2873/3352/files/tabamedipavosuv.pdf
    • https://cdn.shopify.com/s/files/1/0435/5781/4431/files/all_souls_trilogy.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/62884124028.pdf
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/21937885364.pdf
    • https://cdn.shopify.com/s/files/1/0430/3775/3493/files/eberron_campaign_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/zunaxilawamisalitazuxuga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0248/6180/files/47016298167.pdf
    • https://cdn.shopify.com/s/files/1/0435/2176/9627/files/usps_forms_3533.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_off00006156.bin
7a209e9aa77f5798ead7fcb96cbf21ec38c8935904ba6b5780bf4a1335db9563		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6156 5032 bytes
font_01_sfnt_off0000728b.bin
5ee2886d80a5eff2d473ab8a77e0cdda3f9d6c4e723cab1a507f69f0bce317b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x728B 10380 bytes

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