PDF malware analysis — malicious · 3ce1b6dcedb40a28

MALICIOUS

PDF

48.0 KB Created: 2020-08-09 02:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 60b4fdd67da92c09a5638aa79de49898 SHA-1: f8cebe870c18acd7b81c19f4d5e726d2854cc9d1 SHA-256: 3ce1b6dcedb40a28615658c3cae0189580f4eae563e7af51b5ed6a93ebc0da34

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a known malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=bonhoeffer+ethics+pdf. The document body, though heavily obfuscated, contains references to this URL and other benign-looking PDF links, suggesting a tactic to disguise malicious intent within a seemingly legitimate document. The heuristic firings strongly indicate a malicious redirector and a link farm strategy.

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=bonhoeffer+ethics+pdf
- http://files.trinitybiblechurchglassboro.com/uploads/1/3/0/7/130775934/cc5b6074f3d66f1.pdf
- http://files.campingasseiceira.com/uploads/1/3/1/0/131070485/tetutigafixipa-toxodikexolibi.pdf
- http://files.peterbixbynhhouse.org/uploads/1/3/2/7/132741189/bibaxusadox.pdf
- https://cdn.shopify.com/s/files/1/0432/1378/3199/files/steam_for_fedora.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28068876324.pdf
- https://cdn.shopify.com/s/files/1/0433/3741/6869/files/letaxidapanofixe.pdf
- https://cdn.shopify.com/s/files/1/0436/6322/9078/files/3642321897.pdf
- https://cdn.shopify.com/s/files/1/0437/2057/3080/files/34313052016.pdf
- https://cdn.shopify.com/s/files/1/0428/6434/5255/files/55176491224.pdf
- https://cdn.shopify.com/s/files/1/0430/2376/1571/files/nexekero.pdf
- https://cdn.shopify.com/s/files/1/0434/0390/3127/files/nrsv_with_apocrypha.pdf
- https://cdn.shopify.com/s/files/1/0431/0899/1125/files/41385798317.pdf
- https://cdn.shopify.com/s/files/1/0432/0896/6306/files/2553064380.pdf
- https://cdn.shopify.com/s/files/1/0432/0329/7438/files/23769095255.pdf
- https://cdn.shopify.com/s/files/1/0430/8982/1847/files/divulanewokonoxanubot.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_off0000734b.bin` `c4500aaa89fb0a26efa657c5cee672e5b04f894a64a223f87cd1d5f372b0ccd0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x734B	4836 bytes
`font_01_sfnt_off000083ad.bin` `393cc74988145601cd32b3eccb9b1fdd7aa8657326079f9633c98eb32284770a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83AD	9896 bytes
`font_02_sfnt_off0000a573.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA573	4324 bytes

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