PDF malware analysis — malicious · d906e4b175dc3191

MALICIOUS

PDF

51.7 KB Created: 2020-08-18 21:09:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a84b19314acdde2f648334b0fdad8c9d SHA-1: 7c6cfc3a587f8a1842bbca1bd5a37d7e79e4052a SHA-256: d906e4b175dc3191890f85e5834664a7fb4b65a9310c127822122a3ea7f4bdad

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a high number of external links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure. The presence of numerous PDF links suggests a link farm or redirection strategy to obscure the final malicious destination. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=ram+basta+song
- http://livarara.partydecorationsbyteresa.com/uploads/1/3/1/8/131857631/wudox.pdf
- http://files.agape2travel.biz/uploads/1/3/0/7/130738657/4266867.pdf
- http://files.audreylewisinteriors.com.au/uploads/1/3/2/3/132303181/fokubopisasokiju.pdf
- https://cdn.shopify.com/s/files/1/0428/6421/4175/files/analytical_methods_in_vibrations.pdf
- https://cdn.shopify.com/s/files/1/0431/9733/3668/files/98611192831.pdf
- https://cdn.shopify.com/s/files/1/0433/6418/8312/files/mitomup.pdf
- https://cdn.shopify.com/s/files/1/0434/2530/0647/files/84236569903.pdf
- https://cdn.shopify.com/s/files/1/0436/9838/9145/files/formato_de_balance_scorecard_excel.pdf
- https://cdn.shopify.com/s/files/1/0431/3592/6434/files/zabuximisipijini.pdf
- https://cdn.shopify.com/s/files/1/0436/2724/9826/files/komuvakagiverorudu.pdf
- https://cdn.shopify.com/s/files/1/0427/8878/2236/files/tagafofopapovenelolixejun.pdf
- https://cdn.shopify.com/s/files/1/0437/2421/0326/files/best_building_construction_book.pdf
- https://cdn.shopify.com/s/files/1/0434/4381/4556/files/dadoj.pdf
- https://cdn.shopify.com/s/files/1/0435/2727/4645/files/arya_samaj_havan.pdf
- https://cdn.shopify.com/s/files/1/0430/2936/4889/files/pubuzewidesebujokonebir.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_off00007d0d.bin` `b58843fece58e3b64225095ad3dcbc781d6a92a747edcfcc20f9fbf1d40fb349`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D0D	4644 bytes
`font_01_sfnt_off00008cb9.bin` `ac4bb3d2d960772476c39f10aeba7a9ff4dfb9672ffb77968162cce7ed3f09c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CB9	12264 bytes
`font_02_sfnt_off0000b47b.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB47B	4324 bytes

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