PDF malware analysis — malicious · bba869c4b33c6ecd

MALICIOUS

PDF

50.8 KB Created: 2020-07-30 21:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8c2ed80c65b7fb021bfa1efdab35595e SHA-1: 2c943ebec869d14b4151f2e1d31ae29d8f7fd90a SHA-256: bba869c4b33c6ecd377a4b80a54cfc2498d5e1509f97d5455c63036c120154fd

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used to lure victims. Additionally, it exhibits a PDF link farm behavior, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, suggests a lure related to the 'armed forces act nigeria pdf'. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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=armed+forces+act+nigeria+pdf
- http://files.marksatin.com/uploads/1/3/1/3/131398195/towep_wilen_patuxakaf_soduxa.pdf
- http://files.cahalanconstruction.com/uploads/1/3/1/4/131454355/2ff95c28c61d0d9.pdf
- http://files.a-pamperedpooch.com/uploads/1/3/0/9/130969689/7447850.pdf
- http://files.sportinjurycures.com/uploads/1/3/1/8/131857308/7a1b363762.pdf
- http://files.mark
- https://cdn.shopify.com/s/files/1/0430/6717/9162/files/paruk.pdf
- https://cdn.shopify.com/s/files/1/0435/5640/5411/files/81350581727.pdf
- https://cdn.shopify.com/s/files/1/0429/5308/0991/files/57172380836.pdf
- https://cdn.shopify.com/s/files/1/0431/0610/7552/files/golikunesozojozivekomaliv.pdf
- https://cdn.shopify.com/s/files/1/0430/2559/6573/files/perorikatozatu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pepefawabibuf.pdf
- https://cdn.shopify.com/s/files/1/0434/9827/4978/files/zififigex.pdf
- https://cdn.shopify.com/s/files/1/0429/5085/2762/files/87219022873.pdf
- https://cdn.shopify.com/s/files/1/0428/3187/2166/files/golizap.pdf
- https://cdn.shopify.com/s/files/1/0430/5394/0887/files/ladim.pdf
- https://cdn.shopify.com/s/files/1/0435/3120/6808/files/37841737135.pdf
- https://cdn.shopify.com/s/files/1/0429/2821/0073/files/zazebemufuxekixejigumapax.pdf
- https://cdn.shopify.com/s/files/1/0436/5965/7374/files/59811594108.pdf
- https://cdn.shopify.com/s/files/1/0431/7983/5547/files/44479650079.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00007b70.bin` `771c2aa13103126ce8a8d784401caa1e94ce0ad101c06ffadd2cfa3ac8611a99`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B70	5220 bytes
`font_01_sfnt_off00008d13.bin` `af52577b91ca84bcb655fb815c9c55431f7b10dbd2d332e576a72b14705be796`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D13	15040 bytes

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