Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2469aa59bad91f…

MALICIOUS

PDF

49.4 KB Created: 2020-08-02 09:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61e292d578776cd4fa68cf05c24d14c5 SHA-1: ffafadca9c5638e9ebcd5275da37e9f09dd3119d SHA-256: df2469aa59bad91f930cea9d5bd43d5d5631866a86b430ec1b62e49bbc18057e
128 Risk Score

Malware Insights

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

The PDF file contains a deceptive title 'How to move bots in discord' and multiple embedded links. One critical heuristic firing indicates the PDF links to known malicious redirector infrastructure via 'ttraff.com'. Another heuristic identifies a PDF link farm, with many links pointing to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains the malicious URL and other PDF links, suggesting a lure to redirect the user to malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=how+to+move+bots+in+discord
    • http://files.kristamasonyogafitness.com/uploads/1/3/1/3/131379439/tukozadisi.pdf
    • http://files.tonchairs.com/uploads/1/3/0/8/130814032/f84bab21ba018f.pdf
    • http://files.kirstenjoan.com/uploads/1/3/1/4/131438509/575d122604.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/64702912115.pdf
    • https://cdn.shopify.com/s/files/1/0427/9674/4871/files/vajexebulosajufate.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/webevabup.pdf
    • https://cdn.shopify.com/s/files/1/0433/3069/9414/files/31118041270.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3616/files/3158898032.pdf
    • https://cdn.shopify.com/s/files/1/0433/4406/8773/files/volamukobukuvivoko.pdf
    • https://cdn.shopify.com/s/files/1/0437/4419/8805/files/14965306912.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13121593915.pdf
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/71562164715.pdf
    • https://cdn.shopify.com/s/files/1/0427/7754/2823/files/40751797449.pdf
    • https://cdn.shopify.com/s/files/1/0436/3796/4960/files/nazixugogapa.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
font_00_sfnt_off00006317.bin
c6270830d10ff86a44633dc7d809996640076623edafe5c17f1c7abeea4f6dfd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6317 4884 bytes
font_01_sfnt_off000073ad.bin
0cd43a05e5cf0538f537249aa72720ddbcfebd9826e468fd24f36b70ce765d36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73AD 9952 bytes
font_02_sfnt_off000095df.bin
49bd45ccc3726cf27e1247f94abf90f7b723d13bb71b293ea1adf6bb4ae2b6d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95DF 16064 bytes
font_03_sfnt_off0000aa72.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA72 4324 bytes

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