Malicious PDF — malware analysis report

Static analysis result for SHA-256 4337b5743a792d26…

MALICIOUS

PDF

59.4 KB Created: 2020-08-01 09:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c419d234c2fc0870b652e785e550541f SHA-1: 495e42df87be2f29d8f25d3c77c981f7aaf566c1 SHA-256: 4337b5743a792d266c4a848f3545289b88c743a69e14ab457a06705195dac13f
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=battlefield+of+the+mind+free+pdf', suggesting the lure is a free PDF download. The presence of numerous links to Shopify-hosted PDFs, some of which are benign, likely serves to obscure the malicious redirector.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=battlefield+of+the+mind+free+pdf
    • http://files.findingbalanceessentials.com/uploads/1/3/0/7/130776166/91818.pdf
    • http://files.abtc2018.com/uploads/1/3/2/7/132712206/jonanomeliwoxivepoji.pdf
    • http://files.pinellasparkcra.com/uploads/1/3/1/4/131454696/cc8dd375cd2f1.pdf
    • http://files.goodshepherdseniorapartments.org/uploads/1/3/0/8/130814169/wamanugoronu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3700/7778/files/93151359612.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66048758492.pdf
    • https://cdn.shopify.com/s/files/1/0439/3733/3406/files/lugivekukabapowimifoxoka.pdf
    • https://cdn.shopify.com/s/files/1/0430/3880/2073/files/mizeb.pdf
    • https://cdn.shopify.com/s/files/1/0440/3570/2949/files/50046121064.pdf
    • https://cdn.shopify.com/s/files/1/0433/7297/0133/files/52408553586.pdf
    • https://cdn.shopify.com/s/files/1/0432/7194/6398/files/nusiwusolirewevaxakovaget.pdf
    • https://cdn.shopify.com/s/files/1/0431/0745/1041/files/rapidebovuja.pdf
    • https://cdn.shopify.com/s/files/1/0432/7889/3214/files/68635087319.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/7983638738.pdf
    • https://cdn.shopify.com/s/files/1/0432/4976/2459/files/sikikopipa.pdf
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/45647122443.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007adf.bin
ab54870838518bf9be09b6dc856384e298f0a92192e07563ac338c947ccd3e7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADF 4940 bytes
font_01_sfnt_off00008b6b.bin
5b39e9209f2f5823ace8c91dcdd9d22e48f67d4c3a8bd5da9fa9055417ac3ba4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B6B 2576 bytes
font_02_sfnt_off0000952a.bin
68ec2150961c466b13cf2c28fdb59c8cd80c24bea47a186fd0861673c186fe11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x952A 10184 bytes
font_03_sfnt_off0000b838.bin
735e795b4d16529a49140ac7f40a22111760e3f1c48d6bea317f9a0d5f86c05c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB838 16780 bytes
font_04_sfnt_off0000cfc2.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC2 4324 bytes

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