PDF malware analysis — malicious · d533bd08ea5b0cfb

MALICIOUS

PDF

45.8 KB Created: 2020-08-03 12:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8b1a09496180f533455895a50dcf45f0 SHA-1: 8271e1842de68e77268c8678c3eff3f716bdf732 SHA-256: d533bd08ea5b0cfb2dbeff8482b7fca37be1284d2f4f0036c01b935c15bf1fd8

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This URL is likely part of a phishing or malware distribution chain. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The PDF also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm, further suggesting a coordinated effort to distribute malicious content.

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.cc/pify?keyword=each+other+one+another+worksheet+pdf
- http://files.siobhanwelch.com/uploads/1/3/1/4/131437924/5645889.pdf
- http://files.digitalxraypros.com/uploads/1/3/0/7/130739578/c6937752684b210.pdf
- http://files.customgoggles.net/uploads/1/3/0/9/130969300/37a7f6374c644e0.pdf
- https://cdn.shopify.com/s/files/1/0431/5525/9560/files/43158452069.pdf
- https://cdn.shopify.com/s/files/1/0434/0639/3496/files/40694418352.pdf
- https://cdn.shopify.com/s/files/1/0428/7807/5036/files/40923812301.pdf
- https://cdn.shopify.com/s/files/1/0430/0118/4417/files/duvonupolaludar.pdf
- https://cdn.shopify.com/s/files/1/0429/4223/4791/files/12945630367.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/jasijoj.pdf
- https://cdn.shopify.com/s/files/1/0434/9886/4800/files/rigavunalamiso.pdf
- https://cdn.shopify.com/s/files/1/0430/6577/0135/files/nutewuzif.pdf
- https://cdn.shopify.com/s/files/1/0430/7252/0352/files/wafazum.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdf
- https://cdn.shopify.com/s/files/1/0429/0212/6751/files/windows_xp_sp3_activator.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wojilezufaguxulidumusad.pdf
- https://cdn.shopify.com/s/files/1/0434/1619/1138/files/77882509473.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006814.bin` `ac455ff741d484166d70bc46d7be2c00485008f1193bb36d97c59e6dad4c92a2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6814	5064 bytes
`font_01_sfnt_off00007951.bin` `6dbd13f35a5a013c5e9d2c701c6550c4227911db7a4ed3de07974e45aa55cb1e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7951	10080 bytes
`font_02_sfnt_off00009bc7.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9BC7	4324 bytes

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